CN108663146A - A kind of protective device of the fiber bragg grating pressure sensor with temperature-compensating - Google Patents
A kind of protective device of the fiber bragg grating pressure sensor with temperature-compensating Download PDFInfo
- Publication number
- CN108663146A CN108663146A CN201810889643.4A CN201810889643A CN108663146A CN 108663146 A CN108663146 A CN 108663146A CN 201810889643 A CN201810889643 A CN 201810889643A CN 108663146 A CN108663146 A CN 108663146A
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- China
- Prior art keywords
- vertical slot
- temperature
- pressure sensor
- bragg grating
- fiber bragg
- Prior art date
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Links
- 239000000835 fiber Substances 0.000 title claims abstract description 30
- 230000001681 protective effect Effects 0.000 title claims abstract description 17
- 230000007797 corrosion Effects 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 abstract description 5
- 230000006378 damage Effects 0.000 abstract description 4
- 238000009530 blood pressure measurement Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/24—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
- G01L1/242—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet the material being an optical fibre
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/26—Auxiliary measures taken, or devices used, in connection with the measurement of force, e.g. for preventing influence of transverse components of force, for preventing overload
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
- G01L11/02—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00 by optical means
- G01L11/025—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00 by optical means using a pressure-sensitive optical fibre
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/14—Housings
- G01L19/141—Monolithic housings, e.g. molded or one-piece housings
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Optical Transform (AREA)
Abstract
The invention discloses a kind of protective devices of the fiber bragg grating pressure sensor with temperature-compensating, including guard box, in guard box fixture block is both provided in the middle part of upper and lower ends, two fixture block right ends are both provided with flat runner, guard box right part is both provided with perpendicular baffle in both sides up and down, in guard box casing is provided in the middle part of left side wall, U-tube is arranged in casing, U-tube left part is both provided with tablet in both sides up and down, U-tube left end is located in casing and is provided with main adjustable spring, U-tube can move in casing when the device works, tablet slides in casing, upper and lower two pulleys can keep sensor to fix, to keep the device more steady.The device is squeezed into the fiber bragg grating pressure sensor with temperature-compensating in guard box with hand when working, and pulley is slided into the inside groove of fixture block, and device is fixed, the damage that avoidable personnel bring, and can also greatly reduce the corrosion that external humidification air is brought to sensor.
Description
Technical field
The present invention relates to protective device technical field more particularly to a kind of fiber bragg grating pressure sensors with temperature-compensating
Protective device.
Background technology
Sensor is a kind of detection device, can experience measured information, and the information that can will be experienced, by a set pattern
Rule is for conversion into the information output of electric signal or other required forms, to meet the transmission of information, processing, storage, display, record
With control etc. requirements.Fiber bragg grating pressure sensor with temperature-compensating is to be based on flexible sheet structure, pressure measurement grating and elasticity
Diaphragm is directly connected to, and diaphragm its center amount of deflection under the action of environmental pressure changes, so as to cause pressure measurement grating elongation
Variation, cause the drift of its centre wavelength, the variable quantity of pressure can be calculated by detecting the drift value.Temperature compensation grating
It is detached with flexible sheet, is allowed to sensitive to the temperature of environment, to the temperature-compensating as pressure measurement grating.
Advantage of the Fiber Grating Sensors Technology in data collecting field is widely approved.In use environment,
It is with many advantages compared with traditional sensor, and especially it has irreplaceable apparent spy in particular circumstances
Property, the parameter and accuracy that it is provided on measuring accuracy are that other class sensor institutes are inaccessiable at present.But it is existing
Fiber bragg grating pressure sensor with temperature-compensating lacks protective device, and when work is mostly directly exposed in environment, is vulnerable to
Artificial and naturally destruction in environment.And the corrosion for being vulnerable to the steam in air etc. and bringing.Therefore, those skilled in the art carry
A kind of protective device of the fiber bragg grating pressure sensor with temperature-compensating is supplied, to solve mentioned above in the background art ask
Topic.
Invention content
To solve technical problem present in background technology, the present invention proposes a kind of fiber grating pressure with temperature-compensating
The protective device of sensor.
A kind of protective device of fiber bragg grating pressure sensor with temperature-compensating proposed by the present invention, including guard box,
Fixture block is both provided in guard box in the middle part of upper and lower ends, two fixture block right ends are both provided with flat runner, guard box right part upper and lower two
Side is both provided with perpendicular baffle, and casing is provided in the middle part of left side wall in guard box, is arranged with U-tube in casing, above and below U-tube left part
Both sides are both provided with tablet, and U-tube left end is located in casing and is provided with main adjustable spring, and two are all provided between tablet and casing
It is equipped with thin adjustable spring, U-tube right end is fixedly connected with expansion box；
Flexible upper box part is arranged with montant, and flexible lower box part is arranged with lower montant, upper montant lower end and lower montant upper end
In expansion box, and upper montant lower end is both provided with anticreep slide plate with lower montant upper end, is provided between two anticreep slide plates
Several torque springs, left side wall top is provided with the first vertical slot in expansion box, and the first spring, expansion box are provided in the first vertical slot
Interior right side wall top is provided with the second vertical slot, and second spring is provided in the second vertical slot, and left side wall lower part is arranged in expansion box
There is third vertical slot, third spring is provided in third vertical slot, right side wall lower part is provided with the 4th vertical slot, the 4th vertical slot in expansion box
It is inside provided with the 4th spring, block, upper montant are both provided on the inside of the first vertical slot, the second vertical slot, third vertical slot and the 4th vertical slot
Upper end is both provided with pulley with lower montant lower end, and the fiber grating pressure with temperature-compensating is fixedly connected in the middle part of expansion box right end
Sensor, the fiber bragg grating pressure sensor right end with temperature-compensating are provided with pressure-sensitive mould.
As a further solution of the present invention：Both sides are both provided with bolt to guard box left part up and down, and on two bolts
It is provided with bolt hole.
As further scheme of the invention：Two flat runner madial walls are smooth, and two pulleys are and flat runner
It is slidably connected.
As further scheme of the invention：The setting of U-tube left end is fluted, and main adjustable spring is located in groove.
As further scheme of the invention：It is both provided with inside groove in the middle part of two fixture blocks, and fixture block right part is provided with tiltedly
Slope, ramped surfaces are smooth.
As further scheme of the invention：Two anticreep slide plates are symmetrical about expansion box, and two anti-skids
Plate is slidably connected with expansion box.
Compared with prior art, the beneficial effects of the invention are as follows：
1, U-tube can move in casing when the device works, and main adjustable spring stretches, thin adjustable spring corrosion pressure
Contracting, tablet slide in casing, and upper and lower two pulleys can keep sensor to fix, and to keep the device more steady, increase dress
The stability set.
2, the fiber bragg grating pressure sensor with temperature-compensating is squeezed into guard box with hand when the device works, pulley
It slides into the inside groove of fixture block, device is fixed, the damage that avoidable personnel bring, and can also greatly reduce external humidification air to biography
The corrosion that sensor is brought can increase the service life of sensor.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of the protective device of the fiber bragg grating pressure sensor with temperature-compensating.
Fig. 2 is a kind of structural representation of expansion box in protective device of the fiber bragg grating pressure sensor with temperature-compensating
Figure.
Fig. 3 is a kind of fiber bragg grating pressure sensor right view with temperature-compensating.
In figure：1- guard boxs, 2- casings, 3-U shapes pipe, 4- tablets, the main adjustable springs of 5-, the thin adjustable springs of 6-, 7- fixture blocks,
8- flat runners, 9- erect baffle, 10- expansion boxs, the upper montants of 11-, montant, 13- anticreeps slide plate, 14- torque springs, 15- the under 12-
One vertical slot, the first springs of 16-, the second vertical slots of 17-, 18- second springs, 19- thirds vertical slot, 20- thirds spring, 21- the 4th are perpendicular
Slot, the 4th springs of 22-, the fiber bragg grating pressure sensor of 23- blocks, 24- pulleys, 25- with temperature-compensating, 26- pressure-sensitive mould,
27- bolts.
Specific implementation mode
As shown in Figure 1-Figure 3, the protection dress of a kind of fiber bragg grating pressure sensor with temperature-compensating proposed by the present invention
It sets, including guard box 1, is both provided with fixture block 7 in the middle part of upper and lower ends in guard box 1, two 7 right ends of fixture block are both provided with flat runner
8, both sides are both provided with perpendicular baffle 9 to 1 right part of guard box up and down, and left side wall middle part is provided with casing 2,2 inner sleeve of casing in guard box 1
Equipped with U-tube 3, both sides are both provided with tablet 4 to 3 left part of U-tube up and down, and 3 left end of U-tube, which is located in casing 2 and is provided with master, to be stretched
Contracting spring 5, is both provided with thin adjustable spring 6 between two tablets 4 and casing 2,3 right end of U-tube is fixedly connected with expansion box 10；
10 top of expansion box is arranged with montant 11, and 10 lower part of expansion box is arranged with lower montant 12,11 lower end of upper montant with
Lower 12 upper end of montant is located in expansion box 10, and 11 lower end of upper montant and lower 12 upper end of montant are both provided with anticreep slide plate 13, and two
Several torque springs 14 are provided between a anticreep slide plate 13, left side wall top is provided with the first vertical slot 15 in expansion box 10, the
The first spring 16 is provided in one vertical slot 15, right side wall top is provided with the second vertical slot 17, and the second vertical slot 17 in expansion box 10
It is inside provided with second spring 18, left side wall lower part is provided with third vertical slot 19 in expansion box 10, and is provided in third vertical slot 19
Three springs 20, right side wall lower part is provided with the 4th vertical slot 21 in expansion box 10, and the 4th spring 22 is provided in the 4th vertical slot 21, and
One vertical slot 15, the second vertical slot 17, third vertical slot 19 and 21 inside of the 4th vertical slot are both provided with block 23, and 11 upper end of upper montant is under
12 lower end of montant is both provided with pulley 24, and the fiber grating pressure with temperature-compensating is fixedly connected in the middle part of 10 right end of expansion box and is passed
Sensor 25,25 right end of fiber bragg grating pressure sensor with temperature-compensating are provided with pressure-sensitive mould 26.
1 left part of guard box is both provided with bolt 27 in both sides up and down, and is both provided with bolt hole on two bolts 27.
Two 8 madial walls of flat runner are smooth, and two pulleys 24 are slidably connected with flat runner 8.
The setting of 3 left end of U-tube is fluted, and main adjustable spring 5 is located in groove.
Two 7 middle parts of fixture block are both provided with inside groove, and 7 right part of fixture block is provided with slope, and ramped surfaces are smooth.
Two anticreep slide plates 13 are symmetrical about expansion box 10, and two anticreep slide plates 13 slide with expansion box 10 and connect
It connects.
The fiber bragg grating pressure sensor 25 with temperature-compensating is located at 1 outside of guard box, pressure-sensitive mould 26 when the device works
Extraneous pressure can be perceived, when external environment be interfered or sensor when not used, with hand by the optical fiber light with temperature-compensating
Grid voltage force snesor 25 squeezes into guard box 1, and pulley 24 slides on flat runner 8, when pulley 24 is slided to 7 side of fixture block
When, upper montant 11 moves downward, and lower montant 12 moves upwards, and torque spring 14 squeezes, and anticreep slide plate 13 is in expansion box 10
Interior sliding, the first spring 16, second spring 18, third spring 20 and the 4th spring 22 will play anticreep slide plate 13 stretching and make
With, U-tube 3 moves downward, and main adjustable spring 5 stretches, the sliding in the casing 2 of tablet 4, rear wheel 24 slide to fixture block
In 7 inside groove, device is fixed, the damage that avoidable personnel bring, and can also be greatly reduced external humidification air and be brought to sensor
Corrosion.
More than, it is merely preferred embodiments of the present invention, but scope of protection of the present invention is not limited thereto, it is any
Those familiar with the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its invents
Design is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (6)
1. a kind of protective device of the fiber bragg grating pressure sensor with temperature-compensating, including guard box (1), which is characterized in that
It is both provided with fixture block (7) in the middle part of the interior upper and lower ends of guard box (1), two fixture block (7) right ends are both provided with flat runner (8), protection
Both sides are both provided with perpendicular baffle (9) to case (1) right part up and down, and casing (2), casing (2) are provided in the middle part of the interior left side wall of guard box (1)
It is inside arranged with U-tube (3), U-tube (3) left part is both provided with tablet (4) in both sides up and down, and U-tube (3) left end is located at casing (2)
It is interior and be provided with main adjustable spring (5), it is both provided with thin adjustable spring (6), U-tube between two tablets (4) and casing (2)
(3) right end is fixedly connected with expansion box (10)；
Expansion box (10) top is arranged with montant (11), and expansion box (10) lower part is arranged with lower montant (12), upper montant (11)
Lower end is located at lower montant (12) upper end in expansion box (10), and upper montant (11) lower end is both provided with lower montant (12) upper end
Anticreep slide plate (13), is provided with several torque springs (14) between two anticreep slide plates (13), on expansion box (10) interior left side wall
Portion is provided with the first vertical slot (15), and the first spring (16), the interior right side wall top of expansion box (10) are provided in the first vertical slot (15)
It is provided with the second vertical slot (17), and second spring (18), the interior left side wall lower part of expansion box (10) are provided in the second vertical slot (17)
It is provided with third vertical slot (19), is provided with third spring (20) in third vertical slot (19), the interior right side wall lower part of expansion box (10) is set
Be equipped with the 4th vertical slot (21), be provided with the 4th spring (22) in the 4th vertical slot (21), the first vertical slot (15), the second vertical slot (17),
Block (23), upper montant (11) upper end and lower montant (12) lower end are both provided on the inside of third vertical slot (19) and the 4th vertical slot (21)
It is both provided with pulley (24), the fiber bragg grating pressure sensor with temperature-compensating is fixedly connected in the middle part of expansion box (10) right end
(25), the fiber bragg grating pressure sensor with temperature-compensating (25) right end is provided with pressure-sensitive mould (26).
2. a kind of protective device of fiber bragg grating pressure sensor with temperature-compensating according to claim 1, feature
It is, guard box (1) left part is both provided with bolt (27) in both sides up and down, and is both provided with bolt hole on two bolts (27).
3. a kind of protective device of fiber bragg grating pressure sensor with temperature-compensating according to claim 1, feature
It is, two flat runner (8) madial walls are smooth, and two pulleys (24) are slidably connected with flat runner (8).
4. a kind of protective device of fiber bragg grating pressure sensor with temperature-compensating according to claim 1, feature
It is, the setting of U-tube (3) left end is fluted, and main adjustable spring (5) is located in groove.
5. a kind of protective device of fiber bragg grating pressure sensor with temperature-compensating according to claim 1, feature
It is, is both provided with inside groove in the middle part of two fixture blocks (7), and fixture block (7) right part is provided with slope, ramped surfaces are smooth.
6. a kind of protective device of fiber bragg grating pressure sensor with temperature-compensating according to claim 1, feature
Be, two anticreep slide plates (13) are symmetrical about expansion box (10), and two anticreep slide plates (13) with expansion box (10)
It is slidably connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810889643.4A CN108663146B (en) | 2018-08-07 | 2018-08-07 | Protection device with temperature compensation for fiber grating pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810889643.4A CN108663146B (en) | 2018-08-07 | 2018-08-07 | Protection device with temperature compensation for fiber grating pressure sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108663146A true CN108663146A (en) | 2018-10-16 |
| CN108663146B CN108663146B (en) | 2023-11-21 |
Family
ID=63788928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810889643.4A Active CN108663146B (en) | 2018-08-07 | 2018-08-07 | Protection device with temperature compensation for fiber grating pressure sensor |
Country Status (1)
| Country | Link |
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| CN (1) | CN108663146B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109448286A (en) * | 2018-12-18 | 2019-03-08 | 南自晋能自动化有限公司 | Preassembled transformer station outside invading fiber optic detection system |
| CN110132467A (en) * | 2019-06-26 | 2019-08-16 | 蚌埠学院 | Fiber bragg grating pressure sensor |
| CN112959075A (en) * | 2021-02-04 | 2021-06-15 | 陈增法 | Turning and polishing integrated machine for numerical control machining |
| CN112964400A (en) * | 2021-02-25 | 2021-06-15 | 杭州凡泰塑业有限公司 | Pressure alarm device of protection rail |
| CN113250681A (en) * | 2021-04-30 | 2021-08-13 | 河南理工大学 | Coal bed gas pressure detection device based on fiber bragg grating sensor and application method thereof |
| CN116927761A (en) * | 2023-09-18 | 2023-10-24 | 成都工业职业技术学院 | Optical fiber sensor logging-while-drilling device |
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| CN109448286A (en) * | 2018-12-18 | 2019-03-08 | 南自晋能自动化有限公司 | Preassembled transformer station outside invading fiber optic detection system |
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| CN112959075A (en) * | 2021-02-04 | 2021-06-15 | 陈增法 | Turning and polishing integrated machine for numerical control machining |
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| CN113250681A (en) * | 2021-04-30 | 2021-08-13 | 河南理工大学 | Coal bed gas pressure detection device based on fiber bragg grating sensor and application method thereof |
| CN113250681B (en) * | 2021-04-30 | 2023-04-18 | 河南理工大学 | Coal bed gas pressure detection device based on fiber bragg grating sensor and application method thereof |
| CN116927761A (en) * | 2023-09-18 | 2023-10-24 | 成都工业职业技术学院 | Optical fiber sensor logging-while-drilling device |
| CN116927761B (en) * | 2023-09-18 | 2023-12-12 | 成都工业职业技术学院 | Optical fiber sensor logging-while-drilling device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108663146B (en) | 2023-11-21 |
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