CN2685847Y - Double-displacement optical fibre transducer - Google Patents
Double-displacement optical fibre transducer Download PDFInfo
- Publication number
- CN2685847Y CN2685847Y CN 200420030907 CN200420030907U CN2685847Y CN 2685847 Y CN2685847 Y CN 2685847Y CN 200420030907 CN200420030907 CN 200420030907 CN 200420030907 U CN200420030907 U CN 200420030907U CN 2685847 Y CN2685847 Y CN 2685847Y
- Authority
- CN
- China
- Prior art keywords
- liquid level
- slip
- float
- optical fiber
- guide wheels
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 20
- 239000013307 optical fiber Substances 0.000 title claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 70
- 239000002184 metal Substances 0.000 claims abstract description 5
- 239000000835 fiber Substances 0.000 claims description 10
- 239000012530 fluid Substances 0.000 claims description 4
- 230000000712 assembly Effects 0.000 abstract description 5
- 238000000429 assembly Methods 0.000 abstract description 5
- 230000003287 optical effect Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
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- Level Indicators Using A Float (AREA)
Abstract
The utility model provides a double-displacement optical fiber transducer. Two sets of displacement transducer assemblies and two sets of rotary encoder signal sending assemblies are arranged in a same enclosed fixing pipe. The displacement transducer assemblies comprise gear type upper guide wheels, gear type lower guide wheels, tooth type wires or metal hole strip type sliding wires that are intermeshed with the guide wheels, external magnetic components and internal magnetic components, can also adopt general guide wheels and sliding wires. The rotary encoders adopt optical code discs, can also adopt electric code discs; the external magnetic components that are sheathed on the wall of the fixing pipe, can be slid up and down and drives the internal magnetic component to move up and down by a floater sliding up and down, and the floater follows the liquid level fluctuating up and down to float up and down. The guide wheels are driven by the sliding wires to turn to cause the rotary encoders to turn, and the angle displacement signals are sent and are converted to the liquid level signals. Two sets of assemblies are not mutually disturbed, are independently operated, and are respectively sent out two kinds of liquid level signals. The double-displacement transducer has simple structure, convenient use and high checking precision, not only can measure the change of the liquid level, but also can measure the mechanical displacement.
Description
Technical field
The utility model belongs to a kind of liquid level detection device, particularly a kind of dibit shifting fiber sensor.
Background technology
In the Level Detection application, need to detect simultaneously the two kinds of different specific weights being contained in the same container and the liquid level of molten liquid mutually sometimes.Will adopt two kinds of different liquid level gauges routinely, this brings a lot of troubles can for actual the use.Utility model patent ZL 99223528.6 provides a kind of displacement transducer, comprise a closed stationary pipes, a pair of being arranged on the stationary pipes inside, on the lower end, lower tumbler. slip. be fixed on the interior magnetic cell on the slip, can slide up and down outer magnetic cell and the rotary encoder that are enclosed within on the stationary pipes outer wall are formed, and convert straight-line displacement to angular displacement signal, output on the secondary instrument, show.This displacement transducer is applicable to the liquid level of measuring single liquid.
Summary of the invention
The purpose of this utility model provides a kind of Fibre Optical Sensor that is applicable to the different liquid levels of measuring two kinds of different specific weights being contained in the same container and immiscible liquid.Adopt two cover displacement sensing assemblies and two cover rotary encoders, one signalling assembly.
It is a kind of more accurate that another purpose of the present utility model provides, more reliable guide wheel one slip mechanism.
According to dibit shifting fiber sensor of the present utility model, comprise displacement sensing assembly and rotary encoder, the displacement sensing assembly comprises a closed stationary pipes, on, lower tumbler, slip, in comprising, the float magnetic assembly of outer magnetic cell, optical fiber head, it is characterized in that establishing liquid level float in the bottom of stationary pipes, liquid level float on one is established on top, establish outer magnetic cell in the float, the lower end is set up in parallel liquid level lower tumbler on a following liquid level lower tumbler and in described stationary pipes, upper end in stationary pipes is set up in parallel liquid level upper block on a following liquid level upper block and, two slips are round two groups of guide wheels, and magnetic cell in fixing on the slip is provided with liquid scrambler and last fluid level encoder down respectively on two upper block axles, with two scramblers liquid level optical fiber head and last liquid level optical fiber head are set down accordingly, optical fiber head are connected on the secondary instrument with optical fiber.
According to dibit shifting fiber sensor of the present utility model, on described, lower tumbler all adopts common guide wheel or gear type guide wheel, described slip correspondingly is common slip or the tooth bar line that is meshed with the gear type guide wheel, chain or metal pore area, magnetic cell in the liquid level is set down on the following liquid level slip, magnetic cell in the liquid level is set on the last liquid level slip.
The described liquid level float of going up floats on the liquid level of top, and following liquid level float floats on the lower liquid surface.
Adopt dibit shifting fiber sensor of the present utility model, liquid level on the last level sensing element testing, liquid level under the following level sensing element testing.Promptly simultaneously can obtain two kinds of liquid level signals, therefrom can draw liquid level difference etc. for information about, be used to control liquid level or other relevant technological parameter.
Owing to adopted gear-rack-and-pinion guide wheel-slip, avoided producing slippage between smooth guide wheel and the fair line and influenced the measuring accuracy problem, improved the precision and the reliability of sensor.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model.
Embodiment
Below in conjunction with description of drawings embodiment of the present utility model.
As shown in the figure, dibit shifting fiber sensor of the present utility model, comprise displacement sensor component and rotary encoder, the displacement sensing assembly comprises a closed stationary pipes 14, on, lower tumbler, slip, in comprising, the float magnetic assembly of outer magnetic cell, optical fiber head, it is characterized in that establishing liquid level float 3 in the bottom of stationary pipes 14, liquid level float 6 on one is established on top, outer magnetic cell 2 is set in the float, and the lower end is set up in parallel a following liquid level lower tumbler 1 and a last liquid level lower tumbler 2 in described stationary pipes 14, upper end in stationary pipes 14 is set up in parallel liquid level upper block 10 on a following liquid level upper block 8 and, two slips are round two groups of guide wheels, and magnetic cell in fixing on the slip is provided with fluid level encoder 7 and last fluid level encoder 12 down respectively on two upper block axles, with two scramblers liquid level optical fiber head and last liquid level optical fiber head 13 are set down accordingly, optical fiber head are connected on the secondary instrument with optical fiber.
On described, lower tumbler all adopts common the wheel or the gear type guide wheel, described slip correspondingly is common slip or the tooth bar line that is meshed with the gear type guide wheel, chain or metal pore area, and magnetic cell in the liquid level is set down on the following liquid level slip 4, and magnetic cell in the liquid level is set on the last liquid level slip 5.
In actual applications, the described liquid level float 6 of going up floats on the liquid level of top, and following liquid level float 3 floats on the lower liquid surface.When the specific design float, to determine the volume of float according to the proportion of survey liquid, particularly descend the bulk specific gravity of float can not be less than or equal to the proportion of upper liquid, again can not be greater than the proportion of lower liquid.
Owing to adopted gear type guide wheel and profile of tooth slip or metal aperture banding pattern slip, prevented the slippage between guide wheel and the slip, improved precision of signal.This displacement transducer also can be used for the measurement mechanical displacement.
In this embodiment, adopt optical fiber to come transmission signals, also can adopt code disc, electrical signal line to come transmission signals, form and move electric transducer by dibit. but more reliable, safer, more accurate with optical fiber transmission signal.
Claims (3)
1, a kind of dibit shifting fiber sensor, comprise displacement sensing assembly and rotary encoder, the displacement sensing assembly comprises a closed stationary pipes (14), on, lower tumbler, slip, in comprising, the float magnetic assembly of outer magnetic cell, optical fiber head, it is characterized in that establishing liquid level float (3) in the bottom of stationary pipes (14), liquid level float (6) on one is established on top, establish outer magnetic cell in the float, the lower end is set up in parallel a following liquid level lower tumbler (1) in described stationary pipes (14), with a last liquid level lower tumbler (2), the upper end in stationary pipes (14) is set up in parallel a following liquid level upper block (8) and a last liquid level upper block (10), and two slips are round two groups of guide wheels, magnetic cell in fixing on the slip, liquid scrambler (7) and last fluid level encoder (12) down are set respectively on two upper block axles, liquid level optical fiber head (9) and last liquid level optical fiber head (13) are set down accordingly, optical fiber head is connected on the secondary instrument with optical fiber with two scramblers.
2, dibit shifting fiber sensor according to claim 1, it is characterized in that described on, lower tumbler all adopts common guide wheel or gear type guide wheel, described slip correspondingly is common slip or the tooth bar line that is meshed with the gear type guide wheel, chain or metal aperture banding pattern slip, magnetic cell in the liquid level is set down on the following liquid level slip (4), magnetic cell in the liquid level is set on the last liquid level slip (5).
3, dibit shifting fiber sensor according to claim 1 and 2 is characterized in that the described liquid level float (6) of going up floats on the liquid level of top, and following liquid level float (3) floats on the lower liquid surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420030907 CN2685847Y (en) | 2004-03-25 | 2004-03-25 | Double-displacement optical fibre transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420030907 CN2685847Y (en) | 2004-03-25 | 2004-03-25 | Double-displacement optical fibre transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2685847Y true CN2685847Y (en) | 2005-03-16 |
Family
ID=34670488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420030907 Expired - Fee Related CN2685847Y (en) | 2004-03-25 | 2004-03-25 | Double-displacement optical fibre transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2685847Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101772442B (en) * | 2007-08-10 | 2013-03-20 | 丰田自动车株式会社 | Brake control system |
| CN103674186A (en) * | 2013-12-06 | 2014-03-26 | 北京信息科技大学 | Oil-water interface detection device and method |
-
2004
- 2004-03-25 CN CN 200420030907 patent/CN2685847Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101772442B (en) * | 2007-08-10 | 2013-03-20 | 丰田自动车株式会社 | Brake control system |
| CN103674186A (en) * | 2013-12-06 | 2014-03-26 | 北京信息科技大学 | Oil-water interface detection device and method |
| CN103674186B (en) * | 2013-12-06 | 2018-05-18 | 北京信息科技大学 | The detection device and method of oil water surface |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ANSHAN DOUBLE HAWK AUTOMATED ENGINEERING EQUIPMEN Free format text: FORMER OWNER: WANG FUSHUANG Effective date: 20070720 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20070720 Address after: 114048 Anshan city in Liaoning Province town of Tanggangzi Qianshan District No. 2 Patentee after: Anshan Shuangying Automation Engineering Equipment Co., Ltd. Address before: 114048 Anshan city in Liaoning Province town of Tanggangzi Qianshan District No. 2 Patentee before: Wang Fushuang |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050316 Termination date: 20100325 |