CN205317371U - Novel fiber bragg grating sensor ware - Google Patents
Novel fiber bragg grating sensor ware Download PDFInfo
- Publication number
- CN205317371U CN205317371U CN201620002361.4U CN201620002361U CN205317371U CN 205317371 U CN205317371 U CN 205317371U CN 201620002361 U CN201620002361 U CN 201620002361U CN 205317371 U CN205317371 U CN 205317371U
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- CN
- China
- Prior art keywords
- spanner
- temperature probe
- bragg grating
- fiber bragg
- box
- 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
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Abstract
The utility model discloses a novel fiber bragg grating sensor ware relates to fiber grating technical field, concretely relates to fiber grating temperature sensor technique. Going up on the front bezel of box and corresponding the position with every space and open and have the rectangular hole, every rectangular hole inboard is provided with a clamp plate, and the clamp plate be the L template, and the clamp plate downside of L type is buckled on the temperature probe base, and the front side of clamp plate is provided with the spanner, and the spanner is t -shaped plate, and the rectangular hole of spanner and front bezel is sliding fit from top to bottom, and the spanner is above -mentioned to be provided with spiral compression spring, and spiral compression spring's upper end is connected with the up end of the rectangular hole of front bezel, every temperature probe passes through the cable and is connected with fiber grating demodulation appearance. The utility model provides a novel fiber bragg grating sensor ware, the utility model provides a have temperature probe among the prior art and expose in the air, fiber bragg grating sensor ware precision is not high, measures the shortcoming that has the deviation.
Description
Technical field
This utility model relates to Fiber Bragg Grating technology field, is specifically related to fiber-optical grating temperature sensor technology.
Background technology
Fiber-optic grating sensor can realize the direct measurement to the physical quantity such as temperature, strain. Fiber-optic grating sensor measures stress by certain technology and variations in temperature realizes temperature and stress discriminating measurement. The ultimate principle of these technology is all that the fiber grating utilizing two or two sections to have different temperatures and strain-responsive sensitivity constitutes double grating temperature and strain transducer, it is determined by temperature and the strain-responsive sensitivity coefficient of two fiber gratings, utilizes two linear equation in two unknowns to solve temperature and strain.
Operation principle based on the temperature sensor of optical fiber is when the temperature of fiber grating local environment changes, the cycle of grating or fiber core refractive index will change, so that the wavelength launching light changes, by measuring the change of reflecting light length before and after variations in temperature, it is possible to obtain the situation of change of temperature.
In prior art, temperature probe is directly exposed in air, by the impact of ambient temperature, cause that the precision of fiber-optic grating sensor is not high, simultaneously, environment residing for different temperature probes is different, when causing needing measurement of comparison, the basic data of two temperature probes has deviation, namely there is temperature probe in prior art and exposes in atmosphere, fiber-optic grating sensor precision is not high, measures shortcoming devious.
Utility model content
This utility model provides novel fiber grating sensor, and this utility model solves exists temperature probe exposure in atmosphere in prior art, fiber-optic grating sensor precision is not high, measures shortcoming devious.
For solving the problems referred to above, this utility model adopts the following technical scheme that novel fiber grating sensor, including fiber Bragg grating (FBG) demodulator, cable, temperature probe, junction box; Junction box is made up of upper box and lower box, is provided with fiber Bragg grating (FBG) demodulator, upper box and lower box and is structure as a whole, be connected to rear door by folding on rear side of upper box in lower box; It is provided with some spaces in upper box laterally side by side, upper box end face and each space correspondence position is provided with a temperature probe and stretches out hole, each space is provided with a temperature probe; The header board of upper box has rectangular opening with each space correspondence position, a block pressur plate it is provided with inside each rectangular opening, pressing plate is L-type plate, it is buckled on temperature probe base on the downside of the pressing plate of L-type, the front side of pressing plate is provided with spanner, and spanner is T-shaped plate, and spanner slides up and down with the rectangular opening of header board and coordinates, spanner is provided above with spiral compression spring, and the upper end of spiral compression spring is connected with the upper surface of the rectangular opening of header board;Each temperature probe is connected with fiber Bragg grating (FBG) demodulator by cable.
Of the present utility model have the advantages of: this utility model devises upper box and lower box in junction box, lower box is provided with fiber Bragg grating (FBG) demodulator, upper box comprises multiple independent temperature probe, junction box is set to constant temperature, so when needs use temperature probe, it is possible to ensure that temperature probe is not by the impact of ambient temperature, simultaneously, there is between different temperature probes identical basal temperature, reduce the deviation that basic data exists, make measurement result more accurate.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the A-A sectional view of Fig. 1;
Number in the figure illustrates: fiber Bragg grating (FBG) demodulator 1, cable 2, temperature probe 3, junction box 4, upper box 5, lower box 6, pressing plate 7, spanner 8, spiral compression spring 9, rectangular opening 10, rear door 11, folding 12, header board 13, temperature probe stretch out hole 14.
Detailed description of the invention
By best embodiment, this utility model is described in detail below。
As shown in Figure 1-2, novel fiber grating sensor, including fiber Bragg grating (FBG) demodulator 1, cable 2, temperature probe 3, junction box 4; Junction box 4 is made up of upper box 5 and lower box 6, is provided with fiber Bragg grating (FBG) demodulator 1, upper box 5 and lower box 6 and is structure as a whole in lower box 6, is connected to rear door 11 by folding 12 on rear side of upper box 5; It is provided with some spaces in upper box 5 laterally side by side, upper box 5 end face and each space correspondence position is provided with a temperature probe and stretches out hole 14, each space is provided with a temperature probe 3; The header board 13 of upper box 5 has rectangular opening 10 with each space correspondence position, a block pressur plate 7 it is provided with inside each rectangular opening 10, pressing plate 7 is L-type plate, it is buckled on temperature probe 3 base on the downside of the pressing plate 7 of L-type, the front side of pressing plate 7 is provided with spanner 8, and spanner 8 is T-shaped plate, and spanner 8 slides up and down with the rectangular opening 10 of header board 13 and coordinates, spanner 8 is provided above with spiral compression spring 9, and the upper end of spiral compression spring 9 is connected with the upper surface of the rectangular opening 10 of header board 13; Each temperature probe 3 is connected with fiber Bragg grating (FBG) demodulator 1 by cable 2.
During use, upwardly spanner 8, spanner 8 compresses spiral compression spring 9, band dynamic pressure plate 7 moves upward simultaneously, and pressing plate 7 takes temperature probe 3 out of upper box 5, can be taken out by temperature probe 3 and test, spanner 8 playbacks under the active force of spiral compression spring 9, and band dynamic pressure plate 7 playbacks simultaneously; After experiment, open the rear door 11 of upper box 5, temperature probe 3 is placed back on the horizontal plane of L-type of pressing plate 7.
This utility model provides novel fiber grating sensor, and this utility model solves exists temperature probe exposure in atmosphere in prior art, fiber-optic grating sensor precision is not high, measures shortcoming devious.
Last it is noted that obvious, above-described embodiment is only for clearly demonstrating this utility model example, and is not the restriction to embodiment. For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description. Here without also cannot all of embodiment be given exhaustive. And the apparent change thus amplified out or variation are still among protection domain of the present utility model.
Claims (1)
1. novel fiber grating sensor, it is characterised in that include fiber Bragg grating (FBG) demodulator, cable, temperature probe, junction box; Junction box is made up of upper box and lower box, is provided with fiber Bragg grating (FBG) demodulator, upper box and lower box and is structure as a whole, be connected to rear door by folding on rear side of upper box in lower box; It is provided with some spaces in upper box laterally side by side, upper box end face and each space correspondence position is provided with a temperature probe and stretches out hole, each space is provided with a temperature probe; The header board of upper box has rectangular opening with each space correspondence position, a block pressur plate it is provided with inside each rectangular opening, pressing plate is L-type plate, it is buckled on temperature probe base on the downside of the pressing plate of L-type, the front side of pressing plate is provided with spanner, and spanner is T-shaped plate, and spanner slides up and down with the rectangular opening of header board and coordinates, spanner is provided above with spiral compression spring, and the upper end of spiral compression spring is connected with the upper surface of the rectangular opening of header board;Each temperature probe is connected with fiber Bragg grating (FBG) demodulator by cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620002361.4U CN205317371U (en) | 2016-01-05 | 2016-01-05 | Novel fiber bragg grating sensor ware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620002361.4U CN205317371U (en) | 2016-01-05 | 2016-01-05 | Novel fiber bragg grating sensor ware |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205317371U true CN205317371U (en) | 2016-06-15 |
Family
ID=56200657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620002361.4U Expired - Fee Related CN205317371U (en) | 2016-01-05 | 2016-01-05 | Novel fiber bragg grating sensor ware |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205317371U (en) |
-
2016
- 2016-01-05 CN CN201620002361.4U patent/CN205317371U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160615 Termination date: 20170105 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |