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Acta Armamentarii ›› 2016, Vol. 37 ›› Issue (2): 373-378.doi: 10.3969/j.issn.1000-1093.2016.02.025

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Research on Characteristic Parameters of Ta-ZrO2 Fiber Blackbody Cavity Temperature Sensor

HAO Xiao-jian1,2,SANG Tao1,2,PAN Bao-wu3, ZHOU Han-chang1,2   

  1. (1.Key Laboratory of Instrumentation Science & Dynamic Measurement of Ministry of Education,North University of China, Taiyuan 030051, Shanxi, China; 2.Science and Technology on Electronic Test and Measurement Laboratory, North University of China, Taiyuan 030051, Shanxi, China; 3.School of Materials Science and Engineering, North University of China, Taiyuan 030051, Shanxi, China)
  • Received:2015-03-22 Revised:2015-03-22 Online:2016-04-22
  • Contact: HAO Xiao-jian E-mail:haoxiaojian2012@126.com

Abstract:

In order to realize the transient high temperature measurement in the harsh environment and narrow space, a sapphire fiber tantalum (melting point 2 997 ℃) - zirconia (melting point 2 715 ℃) thin film black body cavity transient high temperature sensor is developed by the sputtering and plasma spray- ing technology. Constant high temperature static sensitivity calibration device, which is composed of three water electrolysis oxyhydrogen flame guns, and dynamic characteristic calibration device with high power and high frequency modulated CO2 laser pulse as step excitation source are designed. The mea- sured results show that, when the temperature of constant temperature area of the static sensitivity calibration device is 1 721 ℃ and the impact resistance of the sensor is up to above 50 MPa, the temperature measured by the sensor is 2 802 ℃. When the CO2 laser pulse is used as a high temperature step input signal at 1 500 ℃, the time constant measured by the sensor is μs order of magnitude.

Key words: apparatus and instruments technology, Ta-ZrO2 thin film, dynamic characteristic, transient ultra-high temperature, impact-resistant capacity, measurement

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