Construction method for optical fibre temperature survey apparatus

A technology for optical fiber temperature and measuring devices, which is applied to measuring devices, parts of thermometers, thermometers, etc., can solve problems such as increased manufacturing costs and complex equipment, and achieve good dynamic performance, good measurement accuracy, and high measurement accuracy.

Inactive Publication Date: 2009-01-14
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the high price of the glass fiber or quartz fiber used in the sensor, these improvement schemes start from the hardware, which will make the equipment very complicated and greatly increase the manufacturing cost, so it is not suitable for many conventional power equipment applications.

Method used

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  • Construction method for optical fibre temperature survey apparatus
  • Construction method for optical fibre temperature survey apparatus
  • Construction method for optical fibre temperature survey apparatus

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Embodiment Construction

[0029]Embodiments of the present invention are: adopt semiconductor absorption type optical fiber temperature sensor 2 to add neural network inverse dynamic compensator 3 to form composite optical fiber temperature measuring device 1, the input end of semiconductor absorption type optical fiber temperature sensor 2 is the part of optical fiber temperature measuring device 1 The input end is used to measure the temperature u of the measured point, the output end of the semiconductor absorption optical fiber temperature sensor 2 is connected to the input end of the neural network inverse dynamic compensator 3, and the output end of the neural network inverse dynamic compensator 3 is the optical fiber temperature measuring device 1 The output terminal, output the dynamic compensation result (Such as figure 1 Shown); Neural network inverse dynamic compensator 3 is realized by differentiator 31 and static neural network 32 (as image 3 Shown); Specifically adopt single-chip micro...

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Abstract

The invention discloses a building method of an optical fiber temperature measuring device which is used for building a temperature measuring device that is applicable to high-voltage power equipment and has better dynamic performance, better measuring precision and lower production cost. The optical fiber temperature measuring device consists of an optical fiber temperature sensor (2) with semiconductor absorption and a neural network inverse dynamic compensator (3) which are serially connected; the optical fiber temperature sensor (2) with semiconductor absorption is used for converting the temperature of measured points into converted photoelectric voltage; the neural network inverse dynamic compensator (3) consists of a differentiator (31) and a static neural network (32), is realized with a single chip micyoco and peripheral equipment, and is used for obtaining dynamic compensation results, finishing the dynamic compensation of the converted photoelectric voltage, and improving the precision and the dynamic performance of temperature measurement.

Description

technical field [0001] The invention relates to a construction method of an optical fiber temperature measuring device. Specifically, a semiconductor absorption optical fiber temperature sensor and a neural network inverse dynamic compensator are used in series to form an optical fiber temperature measuring device, which is suitable for temperature measurement of high-voltage power equipment and belongs to the technical field of temperature measurement . Background technique [0002] Real-time temperature measurement plays a vital role in ensuring the safe operation of power equipment. However, for high-voltage power equipment, especially power equipment above 10,000 volts, due to the existence of high voltage and strong electromagnetic environment, extremely high requirements are placed on the temperature sensor used, which requires the temperature sensor to have good insulation and electromagnetic resistance The ability to interfere, while having high measurement accuracy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K11/32G01K1/20G06N3/06
Inventor 戴先中丁煜函
Owner SOUTHEAST UNIV
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