A packaging device for a fiber grating temperature sensor

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

Inactive Publication Date: 2017-12-29
WUHAN UNIV OF TECH
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  • Abstract
  • Description
  • 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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  • A packaging device for a fiber grating temperature sensor
  • A packaging device for a fiber grating temperature sensor
  • A packaging device for a fiber grating temperature sensor

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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 for an optical fiber grating temperature sensor, which comprises a base body, a base body shell and an optical fiber grating. A first hyperboloid and a second hyperboloid are respectively symmetrically arranged on both sides of the central groove, and the centers of the first hyperboloid and the second hyperboloid are respectively provided with substrate bonding surfaces along a direction perpendicular to the axial direction of the substrate; There are substrate shell bonding grooves that are bonded to the bonding surface of the substrate, and a third hyperboloid and a fourth hyperboloid that are respectively connected to the first hyperboloid and the second hyperboloid; the fiber grating is bonded to the center groove of the substrate, and At the bonding groove of the optical fiber grating, the base body and the base body shell are connected through the interference fit of each hyperboloid, and the bonding surface of the base body is pasted on the bonding groove of the base body shell. The invention ensures that the optical fiber grating temperature sensor has high sensitivity and wide temperature measurement range.

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 Patents(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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