Packaging device of fiber bragg grating temperature sensor

A temperature sensor, fiber grating technology, applied in thermometers, measuring devices, thermometers with physical/chemical changes, etc., can solve the problems of small temperature measurement range, insufficient temperature sensor sensitivity, etc., to achieve high sensitivity, wide temperature measurement range, The effect of increasing the amount of elongation

Inactive Publication Date: 2016-03-16
WUHAN UNIV OF TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, most of the current fiber grating temperature sensors are not sensitive enough, and the temperature measurement range is small

Method used

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  • Packaging device of fiber bragg grating temperature sensor
  • Packaging device of fiber bragg grating temperature sensor
  • Packaging device of fiber bragg grating temperature sensor

Examples

Experimental program
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Embodiment Construction

[0014] The present invention will be described in further detail below based on specific embodiments and in conjunction with the accompanying drawings.

[0015] refer to figure 1 As shown, the packaging device of the fiber grating temperature sensor according to the present invention includes a base body 1, a base body shell 2 and a fiber grating 3, the fiber grating 3 is pasted to the axial center of the base body 1, and the base body shell 2 is connected to the base body 1 with an interference fit .

[0016] refer to figure 2 As shown, the base 1 is provided with a central groove 12 along its axial center, the two ends of the central groove 12 are respectively provided with fiber grating bonding grooves 13, and the base 1 is symmetrically provided with first hyperboloids 11 on both sides of the central groove 12. and the second hyperboloid 14, and the centers of the first hyperboloid 11 and the second hyperboloid 14 are respectively provided with a substrate bonding surfa...

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Abstract

The invention discloses a packaging device of a fiber bragg grating temperature sensor. The packaging device comprises a base body, a base body shell and a fiber bragg grating; the base body is provided with a center groove along an axial center, two ends of the center groove are respectively provided with fiber bragg grating pasting grooves, a first hyperboloid and a second hyperboloid are symmetrically and respectively disposed on the base body relative to two side edges of the center groove, and the center of the first hyperboloid and the center of the second hyperboloid are respectively provided with a base body pasting face in a direction perpendicular to the axial direction of the base body; the base body shell is provided with base body pasting grooves in pasting fits with the base body pasting faces, a third hyperboloid and a fourth hyperboloid, and the third hyperboloid and the fourth hyperboloid are respectively in fit connection with the first hyperboloid and the second hyperboloid; and the fiber bragg garting is pasted to the center groove of the base body, pasting positions are at the fiber bragg grating pasting grooves, the base body and the base body shell are in an interference fit through the hyperboloids, and the base body pasting faces are pasted to the base body pasting grooves. The packaging device guarantees high sensitivity and the wide temperature measurement scope of the fiber bragg grating temperature sensor.

Description

technical field [0001] The invention relates to the field of optical fiber grating packaging devices, in particular to a packaging device for optical fiber grating temperature sensors. Background technique [0002] Existing electronic temperature sensors have the characteristics of low acquisition accuracy, susceptibility to electromagnetic interference, poor stability, and large signal transmission loss, so that they cannot be used normally in harsh environments. The fiber grating temperature sensor has the characteristics of strong anti-electromagnetic interference, stable chemical performance, corrosion resistance, small transmission loss, and large transmission capacity. It can be used in harsh environments such as strong electromagnetic fields and corrosion or in special environments. However, most of the current fiber grating temperature sensors are not sensitive enough, and the temperature measurement range is small. Contents of the invention [0003] The technical...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K11/32G01K11/3206
CPCG01K11/32
Inventor 陈涛刘士华方亮李瑞亚
Owner WUHAN UNIV OF TECH
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