CN210863000U - Columnar fiber bragg grating pressure sensor - Google Patents
Columnar fiber bragg grating pressure sensor Download PDFInfo
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- CN210863000U CN210863000U CN201922031806.8U CN201922031806U CN210863000U CN 210863000 U CN210863000 U CN 210863000U CN 201922031806 U CN201922031806 U CN 201922031806U CN 210863000 U CN210863000 U CN 210863000U
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- fiber grating
- pressure sensor
- cylinder
- grating pressure
- chute
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Abstract
The utility model discloses a column fiber grating pressure sensor, include: the optical fiber grating comprises a cylinder and an optical fiber grating, wherein the periphery of the cylinder is provided with a chute, and the optical fiber grating is matched and adhered in the chute. The columnar fiber bragg grating pressure sensor is simple to manufacture, reliable in performance and good in corrosion resistance, is suitable for places with severe monitoring environments, can monitor the structure in real time for a long time, and can be repeatedly used.
Description
Technical Field
The utility model relates to a sensing field provides a column fiber grating pressure sensor very much for detect pressure.
Background
The fiber grating sensing technology is a new generation of fiber sensing technology developed in the last 90 th century. In recent years, the application and research of the method are greatly concerned by scientific research workers and engineering technicians at home and abroad.
The fiber grating pressure sensor can be embedded into a road and a bridge to monitor the damage condition of a structure, so that the fiber grating pressure sensor is required to have good wear resistance, reliability and structural stability. However, the general environment of the construction site is severe, the application limitation of the fiber grating pressure sensor in practical engineering is strong, and the fiber grating is easy to damage.
Therefore, it is an urgent need to solve the problem of developing a fiber grating pressure sensor which is suitable for engineering application and not easy to damage
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a column fiber grating pressure sensor to solve current fiber grating sensor and use the problem that the limitation is poor, fragile etc.
The utility model provides a technical scheme is: columnar fiber grating pressure sensor includes: the optical fiber grating comprises a cylinder and an optical fiber grating, wherein the periphery of the cylinder is provided with a chute, and the optical fiber grating is matched and adhered in the chute.
Preferably, the inclined groove is 45 degrees with the upper top surface of the column body.
More preferably, the column body is a No. 45 carbon steel column body.
Further preferably, the cylindrical fiber grating pressure sensor further comprises two arc-shaped clamping pieces which can be attached to the periphery of the cylinder, and the arc-shaped clamping pieces are arranged at the end parts of the fiber grating and fixedly connected with the periphery of the cylinder.
Further preferably, the arc-shaped clamping pieces are bonded with the column body or connected through bolts.
Further preferably, a baffle is correspondingly arranged outside the chute of the column body.
The utility model provides a column fiber grating pressure sensor not only can online real-time supervision structure in the condition of construction period and operation period bearing capacity, can also play better guard action to fiber grating, prolongs this pressure sensor's life.
The utility model provides a column fiber grating pressure sensor simple manufacture, dependable performance, corrosion resistance is good, is applicable to the more abominable place of monitoring environment, can carry out real-time supervision, repeatedly usable to the structure for a long time.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and embodiments:
fig. 1 is the utility model provides a column fiber grating pressure sensor structure sketch map.
Detailed Description
The invention will be further explained below with reference to specific embodiments, without limiting the invention.
As shown in fig. 1, the utility model provides a column fiber grating pressure sensor, include: the optical fiber grating comprises a cylinder 1 and an optical fiber grating 2, wherein an inclined groove is formed in the periphery of the cylinder 1, and the optical fiber grating 2 is matched and stuck in the inclined groove.
The columnar fiber grating pressure sensor can monitor the bearing capacity of the structure in the construction period and the operation period in real time on line, can also play a good role in protecting the fiber grating, and prolongs the service life of the pressure sensor.
The usage of the columnar fiber bragg grating pressure sensor is as follows: place this column sensor level in the position of treating the monitoring, when the cylinder top bears pressure, can transmit power to fiber grating, make fiber grating's wavelength take place certain change, thereby produce corresponding strain and change, with this size that can indirect monitoring structure bearing capacity, wherein, through setting up fiber grating in the chute of cylinder, can play the guard action to fiber grating, can also not influence this column fiber grating pressure sensor's sensitivity simultaneously, in addition, the relation that pressure and fiber grating wavelength change can be obtained through the experiment in advance.
As the improvement of the technical scheme, the inclined groove and the upper top surface of the column body 1 form a 45-degree angle, the angle can ensure that the fiber bragg grating is not easy to break, meanwhile, the sensitivity of the sensor can also be ensured, and the angle is determined through a large number of experiments.
As an improvement of the technical scheme, the column body 1 is a No. 45 carbon steel column body.
In order to further fix the fiber grating, as an improvement of the technical scheme, the cylindrical fiber grating pressure sensor further comprises two arc-shaped clamping pieces which can be attached to the periphery of the cylinder 1, and the arc-shaped clamping pieces are arranged at the end part of the fiber grating 2 and are fixedly connected with the periphery of the cylinder 1.
As an improvement of the technical scheme, the arc-shaped clamping pieces are bonded with the column body 1 or connected through bolts.
In order to protect the fiber grating from being damaged by foreign objects, as an improvement of the technical scheme, a baffle is correspondingly arranged outside the inclined groove of the cylinder 1.
The embodiments of the present invention are written in a progressive manner, emphasizing the differences of the various embodiments, and similar parts can be referred to each other.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (5)
1. Columnar fiber bragg grating pressure sensor, its characterized in that includes: cylinder (1) and fiber grating (2), wherein, the chute is seted up to the periphery of cylinder (1), fiber grating (2) cooperation paste in the chute, column fiber grating pressure sensor still includes two arc clamping pieces that can laminate with the periphery of cylinder (1), the arc clamping piece set up in the tip of fiber grating (2) and with the periphery fixed connection of cylinder (1).
2. The rod shaped fiber grating pressure sensor of claim 1, wherein: the inclined groove and the upper top surface of the column body (1) form a 45-degree angle.
3. The rod shaped fiber grating pressure sensor of claim 1, wherein: the column body (1) is a No. 45 carbon steel column body.
4. The rod shaped fiber grating pressure sensor of claim 1, wherein: the arc-shaped clamping pieces are bonded with the cylinder (1) or connected through bolts.
5. The rod shaped fiber grating pressure sensor of claim 1, wherein: the chute of the column body (1) is correspondingly provided with a baffle outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922031806.8U CN210863000U (en) | 2019-11-22 | 2019-11-22 | Columnar fiber bragg grating pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922031806.8U CN210863000U (en) | 2019-11-22 | 2019-11-22 | Columnar fiber bragg grating pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210863000U true CN210863000U (en) | 2020-06-26 |
Family
ID=71289167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922031806.8U Active CN210863000U (en) | 2019-11-22 | 2019-11-22 | Columnar fiber bragg grating pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210863000U (en) |
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2019
- 2019-11-22 CN CN201922031806.8U patent/CN210863000U/en active Active
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