CN209264148U - A kind of fiber-optic grating sensor of encapsulation - Google Patents
A kind of fiber-optic grating sensor of encapsulation Download PDFInfo
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- CN209264148U CN209264148U CN201822145883.1U CN201822145883U CN209264148U CN 209264148 U CN209264148 U CN 209264148U CN 201822145883 U CN201822145883 U CN 201822145883U CN 209264148 U CN209264148 U CN 209264148U
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- optic grating
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Abstract
The utility model provides a kind of fiber-optic grating sensor of encapsulation, including capillary, locating piece, optical fiber, fiber-optic grating sensor；Multiple fiber-optic grating sensors are provided on the optical fiber, the optical fiber penetrates in the capillary, the capillary both sides are connected with the locating piece respectively, the locating piece for placing the optical fiber is offered on the locating piece, the both ends that the optical fiber passes through capillary leakage are individually enclosed in the locating piece.Beneficial effect is: a kind of fiber-optic grating sensor of encapsulation provided by the utility model, structure is simple, and fiber-optic grating sensor is encapsulated in capillary, is fixed on testee by way of pasting locating piece.The fiber-optic grating sensor of the utility model encapsulation encapsulation, which is eliminated, to be influenced to cause thermometric inaccurate by extraneous stress, and the fiber-optic grating sensor of encapsulation does not influence temp sensing function, also reduces existing error when practical thermometric, improves temperature measurement accuracy.
Description
Technical field
The utility model belongs to Fiber Grating Sensors Technology field, in particular to a kind of optical fiber grating sensing of encapsulation
Device.
Background technique
The key components and parts of pure electric automobile are batteries, if battery will situations such as there is electric leakage, leakage, excessively high temperature
Easily cause explosion.In order to realize pure electric automobile safe and reliable operation, national four ministries and commissions combine requirement of sending a letter to new energy vapour
Vehicle is monitored, and is especially monitored to new energy car battery.
It can be realized the monitoring to new energy car battery by active sensor, still, sensors with auxiliary electrode is vulnerable to the external world
Interference, in the case that especially measurand is in strong electromagnetic and high temperature and humidity, sensors with auxiliary electrode can not even work and
Security risk is generated, therefore is not suitable for battery detection；On the other hand, the deformation of battery is also the important parameter of battery detection,
And the sensor of the prior art can not be monitored the deformation of battery.Therefore, need to develop it is a kind of can eliminate fiber grating by
The packaging method that extraneous stress influences, fiber-optic grating sensor have anti-electromagnetic interference capability as a kind of novel sensor
By force, corrosion-resistant, high sensitivity is easy to the advantages such as networking.It can be carried out multiple spot detection temperature, real-time supervision equipment operation conditions.
Utility model content
The purpose of this utility model for overcome the deficiencies in the prior art, provides a kind of fiber-optic grating sensor of encapsulation,
Exclude fiber-optic grating sensor is influenced by extraneous stress, improves temperature measurement accuracy.
To achieve the goals above, the technical solution adopted in the utility model is: a kind of fiber-optic grating sensor of encapsulation,
Including capillary, locating piece, optical fiber, fiber-optic grating sensor；Multiple fiber-optic grating sensors are provided on the optical fiber, it is described
Optical fiber penetrates in the capillary, and the capillary both sides are connected with the locating piece respectively, opens up on the locating piece useful
In the location hole for placing the optical fiber, the both ends that the optical fiber passes through capillary leakage are individually enclosed in the locating piece.
Preferably, the locating piece is provided with more than one location hole, and the locating piece uses invar material.
Preferably, the optical fiber is consolidated by the positioning hole dispensing at both ends after the optical fiber penetrates in the capillary
Fixed encapsulation.
Preferably, the locating piece is fixed on testee by way of stickup.
Preferably, the diameter of the capillary is greater than the diameter 0.5mm of the optical fiber.
Beneficial effect using the above scheme is: a kind of fiber-optic grating sensor of encapsulation provided by the utility model, knot
Structure is simple, and fiber-optic grating sensor is encapsulated in capillary, is fixed on testee by way of pasting locating piece.This
The fiber-optic grating sensor of utility model encapsulation encapsulation, which is eliminated, to be influenced to cause thermometric inaccurate by extraneous stress, the optical fiber light of encapsulation
Gate sensor does not influence temp sensing function, also reduces existing error when practical thermometric, improves temperature measurement accuracy.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
The technical solution of the utility model is described further below with reference to embodiment:
The present embodiment discloses a kind of fiber-optic grating sensor of encapsulation, including capillary 1, locating piece 2, optical fiber 3, optical fiber light
Gate sensor 4；Multiple fiber-optic grating sensors 4 are provided on the optical fiber 3, the optical fiber 3 penetrates in the capillary 1, institute
It states 1 both sides of capillary to be connected with the locating piece 2 respectively, the positioning for placing the optical fiber is offered on the locating piece 2
Hole 5, the optical fiber 3 pass through the both ends that capillary 1 leaks outside and are individually enclosed in the locating piece 2.
The locating piece 2 is provided with more than one location hole 5, and the locating piece 5 uses invar material, i.e. 4J32.Yin
Steel is also invar, so the fiber-optic grating sensor 4 of encapsulation fixation does not have to carry out temperature-compensating, can save the band of (FBG) demodulator
Width simplifies algorithm.On the other hand, the contractibility of invar material is strong, can be fitted tightly over testee surface.
The optical fiber 3 penetrate in the capillary 1 after by the location hole 5 at both ends dispensing the optical fiber 3 is fixed
Encapsulation.
The locating piece 2 is fixed on testee by way of stickup, and specifically, optical fiber 3 is sealed by the way that silica gel is fixed
In the location hole 5, soft layer of silica gel can be formed on 3 surface of optical fiber, play buffer function.
The diameter of the capillary 1 is greater than the diameter 0.5mm of the optical fiber, and the capillary 1 is arranged in the optical fiber 3
On, it ensure that the reliability of transmission, further protect optical fiber 3.
The principles of the present invention are as follows: inscribe multiple fiber-optic grating sensors 4 on optical fiber 3 first, then optical fiber 3 is penetrated
In capillary 1, the exposed optical fiber 3 in 1 both ends of capillary is finally completed fixed encapsulation by 5 dispensing of location hole on locating piece 2,
Locating piece 2 is fixed on testee by way of stickup when use.
The above descriptions are merely preferred embodiments of the present invention, not does in any form to the utility model
Limitation, therefore all contents without departing from technical solutions of the utility model are implemented according to the technical essence of the utility model to above
Any simple modification, equivalent change and modification that example is done, are still within the scope of the technical solutions of the present invention.
Claims (5)
1. a kind of fiber-optic grating sensor of encapsulation, it is characterised in that: including capillary (1), locating piece (2), optical fiber (3), light
Fiber grating sensor (4)；It is provided with multiple fiber-optic grating sensors (4) on the optical fiber (3), the optical fiber (3) penetrates described
In capillary (1), capillary (1) both sides are connected with the locating piece (2) respectively, open up on the locating piece (2) useful
In the location hole (5) for placing the optical fiber, it is described fixed that the both ends that the optical fiber (3) passes through capillary (1) leakage are individually enclosed in
In position block (2).
2. a kind of fiber-optic grating sensor of encapsulation according to claim 1, it is characterised in that: the locating piece (2) sets
It is equipped with more than one location hole (5), the locating piece (2) uses invar material.
3. a kind of fiber-optic grating sensor of encapsulation according to claim 1, it is characterised in that: the optical fiber (3) penetrates
By location hole (5) the interior dispensing at both ends the optical fiber (3) fixed encapsulation after in the capillary (1).
4. a kind of fiber-optic grating sensor of encapsulation according to claim 1, it is characterised in that: the locating piece (2) is logical
The mode pasted is crossed to be fixed on testee.
5. a kind of fiber-optic grating sensor of encapsulation according to claim 1, it is characterised in that: the capillary (1)
Diameter is greater than the diameter 0.5mm of the optical fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822145883.1U CN209264148U (en) | 2018-12-20 | 2018-12-20 | A kind of fiber-optic grating sensor of encapsulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822145883.1U CN209264148U (en) | 2018-12-20 | 2018-12-20 | A kind of fiber-optic grating sensor of encapsulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209264148U true CN209264148U (en) | 2019-08-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201822145883.1U Active CN209264148U (en) | 2018-12-20 | 2018-12-20 | A kind of fiber-optic grating sensor of encapsulation |
Country Status (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110864844B (en) * | 2019-11-27 | 2021-08-24 | 中国工程物理研究院流体物理研究所 | Optical fiber probe applied to detonation pressure measurement and manufacturing method thereof |
| CN114935115A (en) * | 2022-06-20 | 2022-08-23 | 武汉理工大学 | Integrated temperature measurement structure for fluid pipeline and packaging method |
-
2018
- 2018-12-20 CN CN201822145883.1U patent/CN209264148U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110864844B (en) * | 2019-11-27 | 2021-08-24 | 中国工程物理研究院流体物理研究所 | Optical fiber probe applied to detonation pressure measurement and manufacturing method thereof |
| CN114935115A (en) * | 2022-06-20 | 2022-08-23 | 武汉理工大学 | Integrated temperature measurement structure for fluid pipeline and packaging method |
| CN114935115B (en) * | 2022-06-20 | 2023-01-03 | 武汉理工大学 | Integrated temperature measurement structure for fluid pipeline and packaging method |
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