Transient response high temperature sensor applied to complex environment

A high-temperature sensor and high-temperature-resistant technology, used in thermometers, instruments, and thermometers that use electrical/magnetic components that are directly sensitive to heat. Simple structure, low production cost, and the effect of enhancing sealing performance and positioning function

Pending Publication Date: 2017-04-26
GUIZHOU AEROSPACE INST OF MEASURING & TESTING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Gunpowder combustion reaches the highest temperature in milliseconds. However, most of the high-voltage and high-temperature resistant sensors used at home and abroad are in the form of armor. Generally, the

Method used

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  • Transient response high temperature sensor applied to complex environment
  • Transient response high temperature sensor applied to complex environment
  • Transient response high temperature sensor applied to complex environment

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[0022] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0023] refer to Figure 1 to Figure 4 , the high temperature sensor of the present invention includes a thermocouple 1 , a tooling base 4 , a tooling pressure cap 14 and a sealing plug 13 .

[0024] The sealing plug 13 is made of polytetrafluoroethylene material, and the two ends are tapered parts 7. At its bottom, that is, one side of the tapered part 7 is provided with a convex groove 3 matching the aforementioned groove, and the upper shaft of the sealing plug 13 A sealing plug aperture 10 with the same diameter as the thermocouple 1 is opened at the center position.

[0025] A mounting cavity and a connecting head 8 are provided on the tooling base 4, and a connecting thread is provided on the connecting head 8, and a high-temperature-resistant insulating cer...

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Abstract

The invention discloses a transient response high temperature sensor applied to the complex environment. The sensor comprises a thermocouple and further comprises a tool foundation, a tool pressing cap and a sealing plug, wherein the tool foundation is provided with a mounting chamber and a joint, the joint is provided with connection thread, an inner chamber wall of the mounting chamber is provided with inner thread, the tool pressing cap is provided with outer thread in matching with the inner thread of the mounting chamber, the tool pressing cap is connected with an end wall of the tool foundation mounting chamber through the sealing plug, the joint of the tool foundation and the axis center position of the tool pressing cap are respectively fixed with high temperature resistance insulation ceramic tubes, and the thermocouple penetrates through the tool foundation, the tool pressing cap and an axis center of the sealing plug. The sensor is advantaged in that change of temperature in a gunpowder combustion process in a combustion gas generator can be truly measured, in matching with acquisition software, a real-time dynamic temperature curve can be formed, subsequent data analysis is covnenient, and the sensor further has properties of convenient dismounting, operation and use, simple structure, low manufacturing cost and repeated use.

Description

technical field [0001] The invention relates to a high-temperature sensor used for transient response in complex environments, and belongs to the technical field of weapon type testing. Background technique [0002] In a complex environment, such as the combustion of a gas generator gunpowder column, high pressure and high temperature can be generated in a very short time. In order to evaluate the dynamic combustion characteristics of propellant and the influence of high temperature on the gas generator, it is necessary to accurately measure the high temperature dynamic curve. Gunpowder combustion reaches the highest temperature in milliseconds. However, most of the high-voltage and high-temperature resistant sensors used at home and abroad are in the form of armor. Generally, the measurement at the upper temperature limit can meet the requirements, but the response time is slow, which cannot meet the transient measurement. Problems such as high cost and poor measurement ef...

Claims

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Application Information

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IPC IPC(8): G01K7/02G01K1/08G01K1/12G01K13/00
CPCG01K1/08G01K1/12G01K7/02G01K7/023G01K13/00
Inventor 包桢徐军
Owner GUIZHOU AEROSPACE INST OF MEASURING & TESTING TECH
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