+

WO1992001218A1 - Support de detecteur - Google Patents

Support de detecteur Download PDF

Info

Publication number
WO1992001218A1
WO1992001218A1 PCT/GB1991/001143 GB9101143W WO9201218A1 WO 1992001218 A1 WO1992001218 A1 WO 1992001218A1 GB 9101143 W GB9101143 W GB 9101143W WO 9201218 A1 WO9201218 A1 WO 9201218A1
Authority
WO
WIPO (PCT)
Prior art keywords
sensor
cartridge
electrode
sleeve
head
Prior art date
Application number
PCT/GB1991/001143
Other languages
English (en)
Inventor
Timothy Russell
Noel Heary
Michael Sheerin
Original Assignee
Amagruss Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Amagruss Limited filed Critical Amagruss Limited
Publication of WO1992001218A1 publication Critical patent/WO1992001218A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00—Thermometers specially adapted for specific purposes
    • G01K13/02—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
    • G01K1/146—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations arrangements for moving thermometers to or from a measuring position
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/28—Electrolytic cell components
    • G01N27/283—Means for supporting or introducing electrochemical probes

Definitions

  • This invention concerns a holder for sensors and the like adapted for use in continuous in-line process measurement applications.
  • Sensor holders are used to support a removable detecting sensor e.g. a pH electrode, an ion-selective electrode, a gas-sensing electrode, a thermometer, a viscometer or a pressure detector, in position in an aperture on a vessel or pipe containing the medium to be analysed, or analyte.
  • a removable detecting sensor e.g. a pH electrode, an ion-selective electrode, a gas-sensing electrode, a thermometer, a viscometer or a pressure detector
  • Such sensors may be used to detect electrode signals, usually in the form of voltage and current differences, and the signals are usually transmitted to an electronic unit where voltage difference is amplified and the signal transformed into the required units e.g. pH units.
  • Detecting electrodes are usually used for the analysis of fluids, particularly fluids under flow in continuous processes.
  • sensors such as electrodes are used in in-line process control e.g. automatic and automated process control and in quality control.
  • in-line process control the electrode is usually mounted on a vessel or pipe through which the substance to be analysed (the analyte) passes, so as to project inside the vessel or pipe for direct exposure to the analyte.
  • the mounting device should be simple in design and easy to maintain and should be able to withstand harsh plant environments.
  • such devices have proved expensive to manufacture and have been susceptible to leakage and contamination of the analyte.
  • To avoid analyte contamination it has been necessary to interrupt process flows to remove the electrode from its mounting for maintenance operations, such as for inspection, replacement or recalibration.
  • Caution is required on removal of the electrode where the analyte is at high temperatures or under pressure as the analyte may erupt violently from the aperture in the vessel or pipe in which the electrode holder is mounted. Accordingly, for this reason also flow must be interrupted when removing the electrodes.
  • An object of the present invention is to provide a rugged sensor holder adapted for use in continuous in-line process fluid measurement applications which allows a sensor to be removed from the holder without requiring interruption of the fluid flow.
  • a sensor holder comprising mounting means adapted for fluid tight mounting in an aperture defined by a vessel or pipe containing the medium to be analysed by the sensor, and sensor holding means characterized in that the sensor holding means is adapted for a fluid tight movement relative to the mounting means between a first operative position in which the sensor located by the sensor holding means is exposed to the said medium to be analysed, and a second inoperative position in which the sensor holding means is retracted into the mounting means allowing the removal of the sensor therefrom, the sensor holder being fluid tight in the second inoperative position following removal of the sensor.
  • the mounting means comprises a tubular sleeve adapted for connection to said vessel or pipe, and the sensor is held within a tubular cartridge which is moveable axially within the tubular sleeve from a first operative position in which the cartridge protrudes outwardly from an end of the sleeve to expose the sensor to a second inoperative position in which the cartridge is withdrawn within the sleeve, sealing means being provided at the outward end of the cartridge to form a fluid tight seal between the cartridge and the sleeve when the cartridge is withdrawn inside the sleeve.
  • the sleeve comprises a threaded mounting collar for threaded engagement with a threaded mounting bush on said vessel or pipe.
  • the electrode cartridge comprises a lower annular head portion, a central tube portion and an upper cartridge head, defined by a lip and a toothed rim and a radial ring projecting from the tube portion below the cartridge head, the upper cartridge head having threads on its internal face to engage complementary threads on the sensor and the head portion having windows through which the medium to be analysed can flow to contact the sensor in the operative position.
  • the central tube portion comprises a riser thread on its external surface engageable with a complementary thread on the internal surface of the sleeve so that the electrode cartridge is moveable in fluid tight manner relative to the sleeve between the first operative position and the second inoperative position, disengagement of the threads being prevented when the sensor holder is inserted in said vessel or pipe by an abutment member mounted on the electrode cartridge.
  • the abutment member comprises a removable end cap threadingly engageable in the hole of the annular head portion.
  • means are provided to prevent removal of the sensor from the electrode cartridge in the first operative position.
  • the means to prevent removal of the sensor from the electrode cartridge comprises a safety lid for fitting over the sensor having snap fastening means engageable with the cartridge head in the second inoperative position, disengagement of the snap fastening means being prevented by the sleeve in the first operative position so that the sensor may not be removed until the electrode cartridge is in the second inoperative position.
  • the safety lid forms a sliding friction fit with the cartridge head and has an annular top to expose a sensor contact socket
  • the snap fastening means comprising fingers separated by slots projecting substantially vertically downwards from the annular top and having flanges on the internal face of their lower extremities, the flanges being insertable into a groove defined between the lip and a ring, so that the flanges slide over the cartridge head and snap into the groove.
  • 0-rings are provided between the electrode cartridge and the sleeve; between the sensor element and the electrode cartridge; on the sleeve for contact with the mounting bush; and between the end cap and the cartridge.
  • Figure 1 is a front view of an electrode cartridge component of the electrode holder of the invention
  • Figure 2 is a pictorial view of an electrode over which a sheath shown in cross-section is fitted for use in the electrode holder of the invention
  • Figure 3 is an exploded view of an electrode holder of the invention in which the electrode is inserted in the electrode cartridge;
  • Figure 4 is a side view of the electrode holder of Figure 3 in a retracted inoperative position
  • Figure 5 is a side view of the electrode holder in its operative position, together with a fragment of a vessel or pipe;
  • Figure 6 is a cross-section viewed along the line III-III of Figure 5 showing the safety lid in a raised position
  • Figure 7 is a longitudinal partial cross-section of an alternative electrode suitable for use with the invention.
  • Figure 8 is a longitudinal partial cross-section of an alternative electrode cartridge having 0-rings between it and the end-cap.
  • a sensor or electrode holder 1 has three principal components, these being an electrode cartridge 2 which houses an electrode 13, a sleeve 3 which houses the electrode cartridge 2 and in which the electrode cartridge 2 is retractable between a first operative and a second inoperative position, and a safety lid 4 for mounting on the electrode cartridge 2.
  • the electrode cartridge 2 is mounted within the sleeve 3 and is retractable into and extensible from the sleeve 3.
  • the electrode cartridge 2 (see Fig. 1) is of hollow tubular shape having a lower head portion 30 at the end of a central tube portion 53. At its other end, the central tube portion 53 is provided with a riser thread 27 on its external surface. The riser thread 27 terminates below a ring 54 which projects outwards from the external surface of the tubular electrode cartridge 2.
  • the head portion 30 is annular having a hole 55 at its lower end and is provided internally with screw threads 5 to which an end cap 6 is screwed.
  • the head portion 30 is also provided with opposing window openings 29, referred to hereinafter as windows, in the tube side - 5 - wall through which fluid can flow through the head portion 30.
  • Two 0-rings 33, 32 are mounted on the head portion 30 above and below the windows 29 respectively.
  • the end cap 6 has a head portion 47 and a neck portion 48, the neck portion 48 being threaded and being screwed to the complementary threads 5 on the interior of the head portion 30 of the electrode cartridge 2 (see Fig. 3).
  • the diameter of the tubular cartridge 2 is greater than at its lower end to define a cartridge head 62 having a lip 19 at its lower end.
  • the internal surface of the cartridge head 62 is threaded to engage complementary threads 34 on the electrode 13.
  • the safety lid 4 can be fitted over the head 62 to form a friction fit.
  • the lip 19 together with the ring 54 defines a groove 18 which serves to prevent removal of the safety lid 4 from the electrode cartridge 2 as is more fully described below.
  • the head 62 has a plurality of spaced apart upwardly projecting teeth 14.
  • the electrode cartridge 2 houses an electrode 13 which is shown in detail in Figure 2.
  • the electrode 13 has a tubular portion 36, having a cap 57.
  • the tubular portion 36 is covered by a tubular sheath 37 which is shown in cross-section.
  • the cap 57 is provided with screw threads 34 adjacent its lower rim adjacent the tubular portion 36 and a cylindrical contact socket 58 which projects from its upper surface.
  • the contact socket 58 is provided externally with screw threads 59 to which a cable plug may be screwed.
  • the tubular portion 36 converges to form a pointed electrode tip 60.
  • An electrode wire 31 extends to the electrode tip 60 from the socket 58.
  • the tubular portion 36 of the electrode 13 is protected by the tubular sheath 37 having an 0-ring 38 at its lower end, adjacent the electrode tip 60.
  • the 0-ring 38 ensures a fluid tight seal betwee- the electrode 13 and a ledge on the internal wall of the electrode cartridge 2.
  • the tubular sheath 37 in addition to protecting the electrode 13, improves the fit of the electrode cartridge 2 and electrode 13.
  • the electrode 13 is housed in the electrode cartridge 2 by inserting the electrode 13 through the head 62 and engaging the external screw threads 34 on the cap 57 of the electrode 13 with the complementary internal screw threads of the cartridge head 62. In this position, the electrode tip 60 is visible through the windows 29 of the head portion 30.
  • Figure 3 is an exploded view of the electrode holder of the invention.
  • Figures 3 to 6 also show the sleeve 3 of the electrode holder in which the electrode cartridge 2 housing the electrode 13 is mounted.
  • the sleeve 3 is made up of an open ended central tubular portion 61 with a lower tubular wall portion 25, an upper tubular thin-wall portion 46 at its upper end and having an internally threaded mounting collar 20 mounted on the external surface of the sleeve.
  • the mounting collar 20 has screw threads 21 on its interior surface for use in mounting the electrode holder 1 on a mounting bush on a pipeline, tank or other vessel.
  • the external surface of the sleeve 3 is further provided with 0-rings 22,23 which prevent leakage of fluid from the analyte vessel when the electrode holder 1 is fitted to the vessel.
  • the 0-ring 23 is located between the mounting collar 20 and the lower end of the sleeve 3. The 0-ring 23 forms a tight fit between the wall of the analyte vessel and the electrode holder 1. Leakage of analyte into the electrode holder 1 is therefore prevented.
  • the 0-ring 22 is positioned above and adjacent the mounting collar 20 so that when the mounting collar 20 is fully engaged by a mounting bush on the analyte vessel, the mounting collar 20 abuts the 0-ring 22 to form a fluid-tight seal.
  • a third 0-ring 24 is positioned immediately beneath the mounting collar 20 on the external surface of the tubular portion 61 to further increase the fluid-tight nature of the device.
  • the electrode cartridge 2 is held within the sleeve 3 in two ways. Firstly, the electrode cartridge 2 forms a fluid tight fit with the wall portion 25 of the sleeve by virtue of 0-rings 32,33. Secondly, the wall portion 25 is provided internally with screw threads 26 which engage complementary external riser screw threads 27 on the electrode cartridge 2. Therefore, the electrode cartridge 2 cannot be removed from or inserted in the sleeve 3 without a firm pushing or pulling motion and a rotating motion. Accordingly, the risk of accidental removal of the cartridge 2 from the sleeve 3 is somewhat reduced and the screw threads 26,27 therefore form a first safety feature against accidental removal of the electrode 13 from the electrode holder.
  • the screw threads 26,27 also facilitate the movement of the electrode cartridge 2 between the first operative position and the second inoperative position within the sleeve 3.
  • the cartridge 2 projects from the sleeve 3 when in the fully lowered position.
  • the electrode cartridge 2 is lowered into the fully lowered position by turning the electrode cartridge 2 together with the safety lid 4 in a clockwise manner on the threads 26, 27 so that the electrode cartridge 2 emerges from the sleeve 3.
  • the electrode tip 31 is exposed so that fluid passing through the windows 29 may be analysed.
  • the head portion 30 is withdrawn into the sleeve 3 and the cap 6 prevents analyte from entering the electrode holder 1.
  • the 0-ring 32 adjacent the cap 6 also forms a fluid-tight seal between the electrode cartridge 2 and the sleeve 3.
  • the second 0-ring 33 on the head portion 30 maintains the fluid tight nature of the electrode holder 1 when the electrode cartridge 2 is in the extended operative position.
  • the 0-ring 33 also functions as a second fluid-tight seal, in addition to 0-ring 32.
  • Removal of the electrode 13 from the electrode cartridge 2 requires unscrewing of the electrode which forms a second safety feature against accidental removal of the electrode 13.
  • the electrode 13 may also be removed from the electrode holder by removing the electrode cartridge 2 from the sleeve 3. This is achieved by rotating the electrode cartridge 2 in an anti-clockwise direction on the threads 26, 27. However, complete removal of the cartridge may only be effected when the cap 6 has been removed i.e. when the electrode is not in use. The cap 6 prevents accidental removal of the cartridge 2 in use as its diameter is greater than the lower opening of the sleeve 3.
  • the third principal component of the invention is the safety lid 4 which is made up of an annular top 8, with an opening 9 from which fingers 10, separated by slots 11, project downwards.
  • the contact socket 58 of the electrode 13 projects through the opening 9.
  • the fingers 10 have shoulders in the form of stops 16 midway along the length of their interior surface.
  • the fingers 10 are provided with flanges 17 on the internal surface of their lower extremities.
  • the flanges 17 project into the groove 18 provided on the electrode cartridge 2 when the safety lid 4 is securely fitted to the electrode cartridge 2 which is explained more fully below.
  • the safety lid 4 exhibits a sliding friction fit with the electrode cartridge 2 and is fitted to and removed from the electrode cartridge 2 as follows. A pushing motion is required to force the fingers 10 to flex outwardly over the cartridge head 62. However, where the fingers 10 and teeth 14 are aligned the stops 16 prevent the safety lid 4 from abutting the ring 54. The safety lid 4 is then simply rotated to align the teeth 14 with the slots 11 whereupon the safety lid 4 falls into place and the fingers 10 abut the ring 54.
  • the construction of the safety lid 4 and electrode cartridge 2 described above ensures that when the safety lid 4 is fitted to the electrode cartridge 2 the fingers 10 are trapped in a recess 45 defined between the tubular wall portion 46 and the cartridge head 62 in the operative position so that it may not be removed.
  • the flanges 17 ensure that even an appreciable pulling motion will not be sufficient to remove the safety lid 4 as the flanges 17 must overcome the resistance of the lip 19 of the cartridge head 62, and the fingers 10 are prevented from flexing outwardly by the tubular wall portion 46 of the sleeve 3. Accordingly, it is not possible to remove the electrode 13 from the cartridge 2 without first removing the safety lid 4, when the electrode cartridge 2 has been screwed down into its operative position (see Figures 5 and 6).
  • the safety lid 4 forms a third safety feature against accidental removal of the electrode 13 when the electrode holder 1 is in use in an in-line process.
  • the electrode holder 1 Prior to use, the electrode holder 1 is as illustrated in Figure 4 with the head 30 of the cartridge holder 2 in the retracted position within the sleeve 3.
  • the electrode 13 is located within the electrode cartridge 2 with the safety lid 4 fitted over the electrode 13.
  • the cap 6 should be screwed into position on the head 30.
  • the electrode holder 1 To apply the electrode holder 1 to a pipeline or other analyte-containing vessel 63, the electrode holder 1 is positioned over an aperture 64 in the vessel 63 so that the sleeve 3 projects into the vessel. The electrode holder 1 is secured to the vessel by engaging a mounting bush 65 on the vessel with the mounting collar 20 of the electrode holder 1.
  • Extension of the head portion 30 is achieved by gripping the safety lid 4 and thus rotating the electrode cartridge 2 relative to the sleeve on the screw threads 26,27 as previously described.
  • the pointed or domed electrode tip 60 is therefore exposed in the windows 29 so that analysis may take place.
  • safety lid 4 rides into recess 45 in sleeve 3, as shown in dashed outline in Figure 5.
  • the recess 45 is seen in Figure 6 where the lid 4 has been removed for clarity.
  • the 0-rings 23, 24, 32, 33 and 38 ensure fluid-tight seals and prevent analyte from entering the electrode holder 1 and escaping from the vessel or the pipeline through the electrode holder 1. - ⁇ -
  • Fluid-tight seals are particularly important where the analyte may be under high pressure or at a high temperature.
  • leakage of a stream of analyte at a fitting or connection may lead to contamination of the analyte from outside the pipeline.
  • Removal of the electrode 13 from the electrode holder 1 may easily be effected while the electrode holder 1 is mounted on a pipeline without interrupting the flow of the process under analysis.
  • the electrode cartridge 2 is first retracted, by rotating it in an anti-clockwise direction, until the cap 6 abuts the head portion 30. Fluid is therefore prevented from entering the electrode holder 1 while the 0-rings 23, 24, 32, 33 and 38 further ensure the fluid-tight nature of the electrode holder 1.
  • the safety lid 4 is then removed using a pulling motion so that the flanges 17 overcome the resistance of the lip 19 and the fingers 10 flex outwardly and move over the cartridge head 62.
  • the electrode 13 is then removed from the electrode cartridge 2 using an unscrewing motion.
  • the sheath 37 and 0-ring 38 may then be removed from electrode 13 to effect any maintenance operation necessary, e.g. calibration or repair, to the electrode 13.
  • the electrode 13 or a replacement electrode may then be refitted with the sheath 37 and 0-ring 38 and replaced in the electrode cartridge 2 using a screwing motion.
  • the electrode cartridge 2 may then be re-extended to expose the head portion 30 and recommence analysis, process flow not having been interrupted.
  • FIG. 7 shows an alternative electrode 13 suitable for use with the invention.
  • the electrode comprises an upper connection portion 12 having screw threads 34 thereon.
  • the tubular portion 36 constructed of a plastics or glass material 36 extends from the connecting portion 12 to form the tip 60 at its end. Analytical measurements are taken at the bulbous tip 60.
  • the tubular portion contains a polymer matrix 39 which encloses an electrolyte 40.
  • An electrode proper e.g. a silver wire electrode 41 extends from a terminal within the connection portion 12.
  • a reference electrode 42 is located within the polymer matrix 39 and voltage differences between the electrode 41 and reference electrode 42 are transmitted via a wire 43 to a signal transforming and reading device. As previously described the signal is transformed to units such as pH units.
  • An electrode of this general type is described in European Patent Specification No. 0,247,535A.
  • the information recorded by the electrode 13 may be displayed on a display unit or may be transmitted to a computer for use in automated or automatic process control.
  • the electrode signals are transmitted to an electronic unit where voltage differences are amplified and voltage and current outputs may be provided for remote reading and process control.
  • the results may also be sent to a computer or simply used for local alarm and process control.
  • Figure 8 shows a longitudinal partial cross-section of an alternative form of the electrode cartridge 2 having two 0-rings 49, 50 between it and the end-cap 6.
  • the first 0-ring 49 is mounted on the end-cap 6 in a rebate 51 formed at the upper rim of the neck portion 48 of the end-cap 6.
  • the second 0-ring 50 is also mounted on the end-cap 6 at the base of the neck portion 48 adjacent the head portion 47 of the end-cap 6.
  • the interior of the electrode cartridge 2 is provided with threads as before which are complementary to threads on the neck portion 48 of the end-cap.
  • the lower end of the electrode cartridge 2 is indented on its inner surface so that a gripping shoulder 52 is defined.
  • the 0-ring 48 is therefore sandwiched between the gripping shoulder 52 and the rebate 51 of the neck portion 48 when the end-cap 6 is screwed into position in the electrode cartridge 2.
  • the 0-ring 50 is also sandwiched between the head portion 47 of the end-cap 6 and the ends of the electrode cartridge 2. Therefore, the fluid-tight nature of the electrode holder is further increased to prevent any liquid media from gaining access to the interior of the electrode cartridge 2.

Landscapes

  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Molecular Biology (AREA)
  • Electrochemistry (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

L'invention se rapporte à un élément de support de détecteur ou d'électrode (1) conçu pour être utilisé lors de mesures continues effectuées au cours d'un procédé en ligne. Le support de détecteur comporte un manchon (3) destiné à être introduit de manière étanche aux fluides dans une ouverture créée par un tuyau ou un récipient à travers lequel le milieu devant être analysé par le détecteur (3) s'écoule. Le détecteur (13) est placé dans une cartouche d'électrode (2) pouvant se déplacer de manière étanche aux fluides, par rapport au manchon (3), entre une première position opérationnelle et une seconde position opérationnelle. Dans la première position opérationnelle, le détecteur (13) est exposé au milieu devant être analysé contenu dans le récipient, et dans la seconde position non opérationnelle, la cartouche (2) est rentrée et l'écoulement vers le détecteur (13), du milieu devant être analysé, est freiné par une série de joints toriques d'étanchéité (22, 32, 33, 38, 49, 50) et un chapeau d'extrémité (6) ménagé sur la cartouche (2). Le détecteur (13) peut être enlevé de la cartouche d'électrode (2) dans la position non opérationnelle sans qu'il soit nécessaire d'interrompre le procédé sous surveillance.
PCT/GB1991/001143 1990-07-10 1991-07-10 Support de detecteur WO1992001218A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IE250290 1990-07-10
IE2502/90 1990-07-10

Publications (1)

Publication Number Publication Date
WO1992001218A1 true WO1992001218A1 (fr) 1992-01-23

Family

ID=11035138

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1991/001143 WO1992001218A1 (fr) 1990-07-10 1991-07-10 Support de detecteur

Country Status (2)

Country Link
AU (1) AU8215291A (fr)
WO (1) WO1992001218A1 (fr)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2700348A1 (fr) * 1993-01-13 1994-07-13 Sagep Dispositif de mesure d'un paramètre d'un fluide en circulation.
EP0687904A1 (fr) * 1994-06-16 1995-12-20 ProMinent Dosiertechnik GmbH Dispositif de transport et d'emmagasinage pour électrodes
EP0753737A2 (fr) * 1995-07-08 1997-01-15 Horiba, Ltd. Dispositif pour mesurer la concentration ionique
EP0793094A3 (fr) * 1996-03-01 1998-02-11 Orion Research Incorporated Ensemble support à friction pour électrode et agitateur
US5918292A (en) * 1997-07-31 1999-06-29 Smith; William L. Right angle sensor
EP0952448A1 (fr) * 1998-04-23 1999-10-27 ENDRESS + HAUSER CONDUCTA GESELLSCHAFT FÜR MESS UND REGELTECHNIK mbH & Co. Dispositif de retenue pour capteur de mesure des fluides de traitement
EP1148317A2 (fr) * 2000-04-22 2001-10-24 Hans Jürgen Postberg Dispositif pour introduire et sortir de manière étanche un transducteur dans un fluid dans une canalisation
WO2006089428A1 (fr) * 2005-02-25 2006-08-31 R-Can Environmental Inc. Assemblage d'orifices de surveillance pour des systemes de traitement de fluide
CH698228A1 (de) * 2007-12-10 2009-06-15 Conducta Endress & Hauser Tauchwechselarmatur.
EP2251650A2 (fr) 2009-05-08 2010-11-17 Knick Elektronische Messgeräte GmbH & Co. KG Porte à capteurs pouvant être actionnée manuellement
DE102010061836A1 (de) * 2010-11-24 2012-05-24 Endress + Hauser Flowtec Ag Austrittssicherung
WO2012082974A1 (fr) * 2010-12-17 2012-06-21 Rosemount Analytical, Inc. Intégration d'un capteur de ph à un bioréacteur/mélangeur à usage unique
WO2013050058A1 (fr) * 2011-10-03 2013-04-11 Pacific Industrie Vase de reception d'une electrode pour l'electrolyse d'eau, notamment d'eau de piscine.
US8828202B2 (en) 2010-12-17 2014-09-09 Rosemount Analytical Inc. Detachable dissolved oxygen sensor for single use bioreactor/mixer
EP2596372A4 (fr) * 2010-07-23 2016-01-06 Invensys Sys Inc Ensemble d'insertion de sonde rétractable réglable
WO2016020271A1 (fr) * 2014-08-08 2016-02-11 Ge Healthcare Bio-Sciences Corp Insertion de capteur stérile
US10584309B2 (en) 2017-02-06 2020-03-10 Rosemount Inc. Pressure transducer for single-use containers
US10836990B2 (en) 2016-12-23 2020-11-17 Cyberoptics Corporation Sensor interface for single-use containers
US11371902B2 (en) 2019-12-27 2022-06-28 Rosemount Inc. Process venting feature for use in sensor applications with a process fluid barrier

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2115550A (en) * 1982-02-22 1983-09-07 Walton Eng Co Ltd Improvements relating to housings for sensing elements
DE3834240A1 (de) * 1988-10-07 1990-04-12 Gimat Gehaeuse fuer messsonden in leitungen und verwendung des gehaeuses fuer in situ messsonden
EP0372121A1 (fr) * 1988-12-02 1990-06-13 Yokogawa Europe B.V. Dispositif d'appui pour fixation d'électrode
EP0391838A2 (fr) * 1989-03-02 1990-10-10 Ciba-Geigy Ag Dispositif pour détecter des processus d'équilibrage dans une solution aqueuse

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2115550A (en) * 1982-02-22 1983-09-07 Walton Eng Co Ltd Improvements relating to housings for sensing elements
DE3834240A1 (de) * 1988-10-07 1990-04-12 Gimat Gehaeuse fuer messsonden in leitungen und verwendung des gehaeuses fuer in situ messsonden
EP0372121A1 (fr) * 1988-12-02 1990-06-13 Yokogawa Europe B.V. Dispositif d'appui pour fixation d'électrode
EP0391838A2 (fr) * 1989-03-02 1990-10-10 Ciba-Geigy Ag Dispositif pour détecter des processus d'équilibrage dans une solution aqueuse

Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2700348A1 (fr) * 1993-01-13 1994-07-13 Sagep Dispositif de mesure d'un paramètre d'un fluide en circulation.
EP0687904A1 (fr) * 1994-06-16 1995-12-20 ProMinent Dosiertechnik GmbH Dispositif de transport et d'emmagasinage pour électrodes
US5762185A (en) * 1994-06-16 1998-06-09 Prominent Dosiertechnik Gmbh Electrode transport and storage system
EP0753737B1 (fr) * 1995-07-08 2003-02-12 Horiba, Ltd. Dispositif pour mesurer la concentration ionique
EP0753737A2 (fr) * 1995-07-08 1997-01-15 Horiba, Ltd. Dispositif pour mesurer la concentration ionique
EP0793094A3 (fr) * 1996-03-01 1998-02-11 Orion Research Incorporated Ensemble support à friction pour électrode et agitateur
US5918292A (en) * 1997-07-31 1999-06-29 Smith; William L. Right angle sensor
EP0952448A1 (fr) * 1998-04-23 1999-10-27 ENDRESS + HAUSER CONDUCTA GESELLSCHAFT FÜR MESS UND REGELTECHNIK mbH & Co. Dispositif de retenue pour capteur de mesure des fluides de traitement
EP1148317A2 (fr) * 2000-04-22 2001-10-24 Hans Jürgen Postberg Dispositif pour introduire et sortir de manière étanche un transducteur dans un fluid dans une canalisation
EP1148317A3 (fr) * 2000-04-22 2003-05-21 Hans Jürgen Postberg Dispositif pour introduire et sortir de manière étanche un transducteur dans un fluid dans une canalisation
WO2006089428A1 (fr) * 2005-02-25 2006-08-31 R-Can Environmental Inc. Assemblage d'orifices de surveillance pour des systemes de traitement de fluide
US7575671B2 (en) 2005-02-25 2009-08-18 R-Can Environmental Inc. Monitoring port assembly for fluid treatment systems
CH698228A1 (de) * 2007-12-10 2009-06-15 Conducta Endress & Hauser Tauchwechselarmatur.
EP2251650A3 (fr) * 2009-05-08 2011-07-06 Knick Elektronische Messgeräte GmbH & Co. KG Porte à capteurs pouvant être actionnée manuellement
DE102009020440B4 (de) * 2009-05-08 2011-03-31 Knick Elektronische Messgeräte GmbH & Co. KG Manuell betätigbare Sensorschleuse
EP2251650A2 (fr) 2009-05-08 2010-11-17 Knick Elektronische Messgeräte GmbH & Co. KG Porte à capteurs pouvant être actionnée manuellement
DE102009020440A1 (de) * 2009-05-08 2010-12-09 Knick Elektronische Messgeräte GmbH & Co. KG Manuell betätigbare Sensorschleuse
EP2596372A4 (fr) * 2010-07-23 2016-01-06 Invensys Sys Inc Ensemble d'insertion de sonde rétractable réglable
DE102010061836A1 (de) * 2010-11-24 2012-05-24 Endress + Hauser Flowtec Ag Austrittssicherung
CN103339248B (zh) * 2010-12-17 2016-08-17 罗斯蒙德分析公司 与单用途生物反应器/混合器结合的pH值传感器
WO2012082974A1 (fr) * 2010-12-17 2012-06-21 Rosemount Analytical, Inc. Intégration d'un capteur de ph à un bioréacteur/mélangeur à usage unique
CN103339248A (zh) * 2010-12-17 2013-10-02 罗斯蒙德分析公司 与单用途生物反应器/混合器结合的pH值传感器
US8828202B2 (en) 2010-12-17 2014-09-09 Rosemount Analytical Inc. Detachable dissolved oxygen sensor for single use bioreactor/mixer
US8900855B2 (en) 2010-12-17 2014-12-02 Rosemount Analytical Inc. pH sensor integration to single use bioreactor/mixer
WO2013050058A1 (fr) * 2011-10-03 2013-04-11 Pacific Industrie Vase de reception d'une electrode pour l'electrolyse d'eau, notamment d'eau de piscine.
WO2016020271A1 (fr) * 2014-08-08 2016-02-11 Ge Healthcare Bio-Sciences Corp Insertion de capteur stérile
CN106795467A (zh) * 2014-08-08 2017-05-31 通用电气医疗集团生物科学公司 无菌传感器插入
US20170218320A1 (en) * 2014-08-08 2017-08-03 Ge Healthcare Bio-Sciences Corp. Sterile sensor insertion
EP3177704B1 (fr) 2014-08-08 2020-04-15 Global Life Sciences Solutions USA LLC Insertion de capteur stérile
US11499126B2 (en) 2014-08-08 2022-11-15 Global Life Sciences Solutions Usa Llc Sterile sensor insertion
CN118956542A (zh) * 2014-08-08 2024-11-15 环球生命科技咨询美国有限责任公司 无菌传感器插入
US10836990B2 (en) 2016-12-23 2020-11-17 Cyberoptics Corporation Sensor interface for single-use containers
US10584309B2 (en) 2017-02-06 2020-03-10 Rosemount Inc. Pressure transducer for single-use containers
US11371902B2 (en) 2019-12-27 2022-06-28 Rosemount Inc. Process venting feature for use in sensor applications with a process fluid barrier

Also Published As

Publication number Publication date
AU8215291A (en) 1992-02-04

Similar Documents

Publication Publication Date Title
WO1992001218A1 (fr) Support de detecteur
US8925401B2 (en) Measuring apparatus comprising a measuring probe and a securement apparatus
US4389372A (en) Portable holder assembly for gas detection tube
US4821585A (en) Probe means for sampling volatile components from liquids or gases
US10393553B2 (en) Modular sensor system
KR940002510B1 (ko) 감지탐침 홀더시스템
US9228863B2 (en) Retractable assembly
US8362905B2 (en) Retractable assembly
US4166020A (en) Measuring probe to determine the ion concentration in liquids
US4390406A (en) Replaceable outer junction double junction reference electrode
US5029471A (en) Liquid level sensor assembly
US7382458B2 (en) Fiber optic fluid probe
US4817450A (en) Pressure/temperature test plug assembly
US4037973A (en) Light sensitive device for measuring particles in a liquid
US3718567A (en) Electrode assembly
US5031452A (en) Water level probe
JP2016099311A (ja) 試料測定装置
DE3941162C2 (fr)
US11506625B2 (en) Diamond-based sensor device for use in hostile environments
US9410871B1 (en) Apparatus for analytical sampling and/or conditioning of a process gas with selective isolation capability, and method therefore
KR102673496B1 (ko) 물리량 측정 장치
US4018661A (en) Instrument sensor assembly
EP0627956B1 (fr) Appareil pour separation des fluides ayant pour base une membrane
WO1997041429A1 (fr) DISPOSITIF SERVANT A DETECTER LA CONDUCTIVITE ET LE pH D'UN ECOULEMENT DE LIQUIDE
US3357910A (en) Electrode structure including temperature control means

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AT AU BB BG BR CA CH CS DE DK ES FI GB HU JP KP KR LK LU MC MG MN MW NL NO PL RO SD SE SU US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE BF BJ CF CG CH CI CM DE DK ES FR GA GB GN GR IT LU ML MR NL SE SN TD TG

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

NENP Non-entry into the national phase

Ref country code: CA

点击 这是indexloc提供的php浏览器服务，不要输入任何密码和下载