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Fiber Bragg Grating Array Sensing Temperature Measurement Device and Temperature Measurement Method Based on Labview

A fiber grating array, temperature measurement device technology, applied in measurement devices, thermometers with physical/chemical changes, thermometers, etc. Secondary development value, the effect of reducing the amount of data storage

Active Publication Date: 2018-01-09
NANCHANG HANGKONG UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But they are bulky and not suitable for flammable and explosive environments. In addition, infrared temperature guns can only collect temperature at a certain moment, and cannot realize real-time collection of temperature data

Method used

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  • Fiber Bragg Grating Array Sensing Temperature Measurement Device and Temperature Measurement Method Based on Labview
  • Fiber Bragg Grating Array Sensing Temperature Measurement Device and Temperature Measurement Method Based on Labview
  • Fiber Bragg Grating Array Sensing Temperature Measurement Device and Temperature Measurement Method Based on Labview

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Embodiment Construction

[0036] like figure 1 As shown, the fiber grating array sensing temperature measurement device based on the labview platform is composed of a host computer temperature sensing system and an external temperature measurement device. The host computer temperature sensing system is a labview program, including a control interface module, Function display module, threshold alarm module and automatic data storage module, the external temperature measuring device is composed of ASE light source, fiber grating array, optical circulator and volume grating demodulation module.

[0037] like figure 1 As shown, the ASE light source is connected to the first port of the optical circulator, the output light is connected to the grating array through the second port of the circulator, and the reflected light enters the volume grating module through the third port. After collimation processing and grating dispersion, different wavelengths will be Transmitted from different directions, the opti...

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Abstract

The present invention relates to a fiber grating array sensing temperature measuring device and its temperature measuring method based on the labview platform, which is composed of a host computer sensing temperature measuring system and an external temperature measuring device, and the host computer sensing temperature measuring system includes a control interface module , a function display module, a threshold alarm module and an automatic data storage module; the external temperature measuring device includes a light source, a fiber grating array, a circulator, and a volume grating demodulation module. The device can realize temperature collection and real-time monitoring under flammable and explosive extreme conditions such as crude oil storage tanks, internal systems of large-scale power transmission substation switch cabinets, and forest fire warnings, temperature alarms under different threshold conditions, data output, and switchable storage modes. Data storage, grating parameter setting, dynamic display of temperature measurement point-temperature curve and other functions. The device can accurately demodulate the temperature value of the grating, and can realize temperature measurement in the temperature range of 0-300°C.

Description

technical field [0001] The invention relates to an optical fiber temperature measuring device, in particular to a fiber grating array sensing temperature measuring device and a temperature measuring method based on a labview platform. Background technique [0002] The fiber grating sensing system has advantages that traditional electrical sensors do not have, such as high sensitivity, anti-electromagnetic interference, corrosion resistance, and good insulation. In production and life, the temperature monitoring of crude oil storage tanks, the temperature detection inside the switchgear of large-scale power transmission substations and the early warning of forest fires, etc., the working environment has strict requirements on the temperature monitoring system, and the monitoring system needs to run 24 hours a day. High, the fiber grating temperature sensor has high demodulation accuracy, and its small size, no electricity and other advantages meet the actual needs, and has a ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01K11/32G01K11/3206
Inventor 高鹏万生鹏
Owner NANCHANG HANGKONG UNIVERSITY
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