CN207147690U - Optical fiber pressure measurement sensor - Google Patents
Optical fiber pressure measurement sensor Download PDFInfo
- Publication number
- CN207147690U CN207147690U CN201720963766.9U CN201720963766U CN207147690U CN 207147690 U CN207147690 U CN 207147690U CN 201720963766 U CN201720963766 U CN 201720963766U CN 207147690 U CN207147690 U CN 207147690U
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- China
- Prior art keywords
- optical fiber
- expansion link
- pressure measurement
- measurement sensor
- shell fragment
- Prior art date
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 32
- 238000009530 blood pressure measurement Methods 0.000 title claims abstract description 17
- 239000012634 fragment Substances 0.000 claims abstract description 24
- 238000003475 lamination Methods 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 2
- 239000000835 fiber Substances 0.000 abstract description 10
- 238000005259 measurement Methods 0.000 abstract description 8
- 238000012360 testing method Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011551 heat transfer agent Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
It the utility model is related to sensor technical field, it is a kind of optical fiber pressure measurement sensor, it includes body and housing, expansion link is set with hole, the ball that diameter is less than groove diameter is installed with the bottom of expansion link, ball base is on shell fragment, the top of expansion link is located in housing, diaphragm support is installed with the top of expansion link, back-up ring is installed with the top of expansion link, at least two sleeves are circumferentially installed with back-up ring upper surface, spring is set with sleeve, hole is provided with the case top opening position corresponding with sleeve, the briquetting that can be touched when pressing is provided with hole with spring interface.The utility model reasonable and compact in structure, realize that different pressures detect the regulation of range by briquetting, solve the existing measurement journey of traditional fiber pressure sensor to fix, cause to detect the problem of inaccurate when pressure is higher or lower, the accuracy of pressure detecting is ensure that, improves the stability of whole measurement apparatus.
Description
Technical field
Sensor technical field is the utility model is related to, is a kind of optical fiber pressure measurement sensor.
Background technology
Fiber-optic grating sensor is one kind of fibre optical sensor, the tune by extraneous physical parameter to optical fiber Bragg wavelength
System obtains heat transfer agent, is a kind of fibre optical sensor of wavelength modulation type, have good reliability, measurement accuracy it is high, can be constantly
The advantages that monitoring and electromagnetism interference, mainly including fiber Bragg grating strain sensor, temperature sensor, acceleration transducer, position
Displacement sensor, pressure sensor, flow sensor, liquid level sensor etc..Fibre optic compression sensor can be to pressure or pulling force
It is monitored, traditional fibre optic compression sensor is mostly electronic sensor, and transmission range is near, anti-lightning, not anti-electromagnetism are not done
Disturb, and traditional fibre optic compression sensor detection range is fixed, and causes to detect inaccurately when pressure is higher or lower.
The content of the invention
The utility model provides a kind of optical fiber pressure measurement sensor, overcomes the deficiency of above-mentioned prior art, its energy
Measuring range existing for effectively solving existing fiber pressure sensor is fixed and causes to detect when pressure is higher or lower
The problem of inaccurate.
The technical solution of the utility model is realized by following measures：A kind of optical fiber pressure measurement sensor, bag
Include the body of both ends open and in the housing for being inverted barrel-like structure, housing is fixedly mounted on the top middle portion of body, in body
Upper tube wall inside middle portion is installed with reclinate shell fragment, groove is provided with the tube wall on the inside of shell fragment, in groove
Tube wall is provided with hole, and expansion link is set with hole, and the bottom of expansion link in the grooves, is fixed in the bottom of expansion link
Diameter is installed less than groove diameter and more than the ball of flexible shank diameter, on shell fragment, the top of expansion link is located at ball base
In housing, diaphragm support is installed with the top of expansion link, diaphragm is installed on diaphragm support, on the inside of case top
The opening position corresponding with diaphragm support is installed with optical fiber sensing element, has spacing between diaphragm and optical fiber sensing element,
Back-up ring is installed with the top of expansion link, at least two sleeves are circumferentially installed with back-up ring upper surface, in sleeve
Spring is inside set with, hole is provided with the case top opening position corresponding with sleeve, can be with when pressing is installed in hole
The tactile briquetting of spring interface.
Here is the further optimization and/or improvements to above-mentioned utility model technical scheme：
The above-mentioned display screen that may also include installed in the controller of enclosure interior and on housing, in each pressure
The top of block is installed with switching push button, and optical fiber sensing element, switching push button and display screen are electrically connected with the controller.
It is above-mentioned to may also include installed in the battery of enclosure interior and the power interface on housing and data-interface,
The battery, power interface and data-interface are electrically connected with the controller.
It is above-mentioned to be hinged with handle in the both sides of housing, anti-skidding sleeve pipe is installed with handle；Or/and in shell
Handle can be installed with the top of body.
It is above-mentioned that internal thread can be provided with the inside of the both ends of body, regular polygon knot can be provided with the outside of the both ends of body
The neck of structure.
Above-mentioned shell fragment can be reclinate arc spring lamination.
The utility model reasonable and compact in structure, it is easy to use, it is connected by body with pipe under test, and as needed
A number of briquetting under range pressing, liquid or gas inside pipe under test flow through body compressing shell fragment, move up shell fragment
Force expansion link to move up, so that diaphragm moves up, pressure condition is then detected by optical fiber sensing element.Therefore this practicality is new
Type realizes that different pressures detect the regulation of range by briquetting, solves the existing measurement journey of traditional fiber pressure sensor
It is fixed, cause to detect the problem of inaccurate when pressure is higher or lower, ensure that the accuracy of pressure detecting, improve
The stability of whole measurement apparatus.
Brief description of the drawings
Accompanying drawing 1 is the main view cross section structure diagram of the best embodiment of the utility model.
Accompanying drawing 2 is the circuit connection diagram of the best embodiment of the utility model.
Coding in accompanying drawing is respectively：1 is body, and 2 be housing, and 3 be shell fragment, and 4 be groove, and 5 be expansion link, and 6 be ball,
7 be diaphragm support, and 8 be optical fiber sensing element, and 9 be back-up ring, and 10 be sleeve, and 11 be spring, and 12 be briquetting, and 13 be handle.
Embodiment
The utility model is not limited by following embodiments, can according to the technical solution of the utility model and actual conditions come
Determine specific embodiment.
In the utility model, for the ease of description, the description of the relative position relation of each part is according to specification
The Butut mode of accompanying drawing 1 is described, such as：The position relationship of forward and backward, upper and lower, left and right etc. is according to Figure of description 1
Butut direction determine.
The utility model is further described with reference to embodiment and accompanying drawing：
As shown in accompanying drawing 1,2, the optical fiber pressure measurement sensor, including the body 1 of both ends open and in be inverted tubbiness knot
The housing 2 of structure, the housing 2 are fixedly mounted on the top middle portion of body 1, are fixedly mounted in the upper tube wall inside middle portion of body 1
There is reclinate shell fragment 3, be provided with groove 4 on the tube wall of the inner side of shell fragment 3, hole be provided with the tube wall in groove 4, in hole
Expansion link 5 is set with hole, the bottom of expansion link 5 is located in groove 4, and being installed with diameter in the bottom of expansion link 5 is less than
The diameter of groove 4 and the ball 6 for being more than the diameter of expansion link 5, on shell fragment 3, the top of expansion link 5 is located in housing 26, ball,
Be installed with diaphragm support 7 at the top of expansion link 5, diaphragm be installed on diaphragm support 7, the inside top of housing 2 with
The corresponding opening position of diaphragm support 7 is installed with optical fiber sensing element 8, has spacing between diaphragm and optical fiber sensing element 8,
Back-up ring 9 is installed with the top of expansion link 5, at least two sleeves 10 are circumferentially installed with the upper surface of back-up ring 9,
Spring 11 is set with sleeve 10, the opening position corresponding with sleeve 10 is provided with hole at the top of housing 2, is provided with hole
The briquetting 12 that can be in contact during pressing with spring 11.
Here, housing 2 and body 1 can be integrally formed.Body 1 can use metal material to make, and ensure the intensity of body 1.To
The shell fragment 3 of lower bending can be arc-shaped, can set holding tank in the upper tube wall inside middle portion of body 1, shell fragment 3 is fixedly mounted on
In holding tank.Ball 6 is installed with the bottom of expansion link 5, the diameter of ball 6 is less than the diameter of groove 4 and more than flexible
The diameter of bar 5, there is spacing between the upper surface and the top of groove 4 of ball 6, ensure that expansion link 5 and ball 6 have up and down in groove 4
Mobile space and ball 6 will not take groove 4 out of by expansion link 5.In the sleeve 10 that the upper surface of back-up ring 9 is circumferentially fixedly mounted
Number can be set according to actual conditions, and briquetting 12 can be arranged in hole by modes such as screw threads, and the quantity of briquetting 12 need to be with set
The quantity of cylinder 10 is identical, and the bottom of briquetting 12 can be in inverted coniform, and the bottom of briquetting 12 needs energy when pressing or screw briquetting 12
It is in contact, and will not be jacked up by spring 11 with the spring 11 in sleeve 10, the briquetting 12 of varying number is pressed or screwed here
Under it is in contact with the spring 11 in corresponding sleeve 10, realize different pressures detection range regulation, ensure higher in pressure
Or the accuracy detected when relatively low, the range that each briquetting 12 pressed or screwed lower representative need to be set according to actual conditions.Optical fiber
The change value of pressure that sensing element 8 detects is exported in the form of optical signal, and the changing value of pressure is drawn after signal demodulates.
In use, body 1 of the present utility model is connected with pipe under test, the lower certain amount of range as needed pressing
Briquetting 12, liquid or gas inside pipe under test, which flow through body 1, oppresses shell fragment 3, moves up shell fragment 3 and forces on expansion link 5
Move, so that diaphragm moves up, pressure condition is then detected by optical fiber sensing element 8.Therefore the utility model passes through briquetting 12
The regulation of different pressures detection range is realized, the existing measurement journey of traditional fiber pressure sensor is solved and fixes, cause
The problem of inaccurate is detected when pressure is higher or lower, ensure that the accuracy of pressure detecting, improves whole measurement
The stability of device.
Above-mentioned optical fiber pressure measurement sensor can be made further optimization and/or improvements according to being actually needed：
As shown in accompanying drawing 1,2, in addition to the controller inside housing 2 and the display screen on housing 2,
The top of each briquetting 12 is installed with switching push button, optical fiber sensing element 8, switching push button and display screen with control
Device electrical connection processed.Here switching push button is identical with the quantity of briquetting 12；The data that controller can detect to optical fiber sensing element 8 are entered
Row processing, and be sent to display screen and shown and checked for staff, while controller can control switching push button to press automatically
Briquetting 12 is pressed, adds practicality and operability of the present utility model；Display screen can be LED display.
As shown in accompanying drawing 1,2, in addition to the battery inside housing 2 and the power interface on housing 2
And data-interface, the battery, power interface and data-interface are electrically connected with the controller.Here battery and power interface
It is electrically connected with the controller, i.e., including two kinds of power supply modes, one kind is that battery is powered to controller, and one kind is to pass through electricity
Source interface is powered to controller；Data-interface is used for concentrating the measurement data in export controller, or imports related data.
As shown in accompanying drawing 1,2, handle is hinged with the both sides of the housing 2, Anti-slip cover is installed with handle
Pipe.More facilitate use of the present utility model by handle.
As shown in accompanying drawing 1,2, handle 13 is installed with the top of housing 2.More facilitate this practicality new by handle 13
The use of type.
As shown in accompanying drawing 1,2, internal thread is equipped with the inside of the both ends of the body 1, is all provided with the outside of the both ends of body 1
There is the neck of regular polygon structure.Here internal thread is equipped with the inside of the both ends of body 1, is all provided with the outside of the both ends of body 1
There is the neck of regular polygon structure, facilitate the utility model and the firm connection of pipe under test, increase the stability of pressure detecting.
As shown in accompanying drawing 1,2, the shell fragment 3 is reclinate arc spring lamination.
Above technical characteristic constitutes most preferred embodiment of the present utility model, and it has stronger adaptability and optimal implementation
Effect, can be according to the non-essential technical characteristic of increase and decrease be actually needed, to meet the needs of different situations.
Claims (9)
1. a kind of optical fiber pressure measurement sensor, it is characterised in that the body including both ends open and the shell in inversion barrel-like structure
Body, the housing are fixedly mounted on the top middle portion of body, are installed with and are bent downwardly in the upper tube wall inside middle portion of body
Shell fragment, groove is provided with the tube wall on the inside of shell fragment, hole is provided with the tube wall in groove, is set with hole flexible
Bar, the bottom of expansion link in the grooves, diameter are installed with the bottom of expansion link less than groove diameter and more than flexible
The ball of shank diameter, on shell fragment, the top of expansion link is located in housing ball base, and film is installed with the top of expansion link
Plate rack, diaphragm is installed on diaphragm support, the opening position corresponding with diaphragm support is fixedly mounted on the inside of case top
There is optical fiber sensing element, have spacing between diaphragm and optical fiber sensing element, be installed with back-up ring on the top of expansion link, keeping off
Circle upper surface is circumferentially installed with least two sleeves, and spring is set with sleeve, relative with sleeve in case top
The opening position answered is provided with hole, the briquetting that can be touched when pressing is provided with hole with spring interface.
2. optical fiber pressure measurement sensor according to claim 1, it is characterised in that also include installed in enclosure interior
Controller and the display screen on housing, switching push button is installed with the top of each briquetting, optical fiber is quick
Sensing unit, switching push button and display screen are electrically connected with the controller.
3. optical fiber pressure measurement sensor according to claim 2, it is characterised in that also include installed in enclosure interior
Battery and power interface and data-interface on housing, the battery, power interface and data-interface with control
Device electrical connection processed.
4. according to the optical fiber pressure measurement sensor described in claim 1 or 2 or 3, it is characterised in that in the both sides of the housing
Handle is hinged with, anti-skidding sleeve pipe is installed with handle；Or/and it is installed with handle in case top.
5. according to the optical fiber pressure measurement sensor described in claim 1 or 2 or 3, it is characterised in that at the both ends of the body
Inner side is equipped with internal thread, and the neck of regular polygon structure is equipped with the outside of the both ends of body.
6. optical fiber pressure measurement sensor according to claim 4, it is characterised in that on the inside of the both ends of the body
Provided with internal thread, the neck of regular polygon structure is equipped with the outside of the both ends of body.
7. according to the optical fiber pressure measurement sensor described in claim 1 or 2 or 3 or 6, it is characterised in that the shell fragment is downward
The arc spring lamination of bending.
8. optical fiber pressure measurement sensor according to claim 4, it is characterised in that the shell fragment is reclinate arc
Shape shell fragment.
9. optical fiber pressure measurement sensor according to claim 5, it is characterised in that the shell fragment is reclinate arc
Shape shell fragment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720963766.9U CN207147690U (en) | 2017-08-03 | 2017-08-03 | Optical fiber pressure measurement sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720963766.9U CN207147690U (en) | 2017-08-03 | 2017-08-03 | Optical fiber pressure measurement sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207147690U true CN207147690U (en) | 2018-03-27 |
Family
ID=61673991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720963766.9U Active CN207147690U (en) | 2017-08-03 | 2017-08-03 | Optical fiber pressure measurement sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207147690U (en) |
-
2017
- 2017-08-03 CN CN201720963766.9U patent/CN207147690U/en active Active
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