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Acta Armamentarii ›› 2016, Vol. 37 ›› Issue (2): 193-202.doi: 10.3969/j.issn.1000-1093.2016.02.001

• Paper •     Next Articles

Design and Test of a Hybrid Sensor for Temperature and Heat Flux Measurement without Water-cooling

YANG Qing-tao1,2, WANG Hui2, ZHU Xin-xin2, ZHOU Ping2   

  1. (1.State Key Laboratory of Aerodynamics, China Aerodynamics Research and Development Center,2Hypervelocity Aerodynamics Institute, China Aerodynamics Research and Development Center, Mianyang 621000, Sichuan, China)
  • Received:2015-06-02 Revised:2015-06-02 Online:2016-04-22
  • Contact: YANG Qing-tao E-mail:yqt06@mails.tsinghua.edu.cn

Abstract: A method for rapid measurement of surface temperature and heat flux in the absence of water-cooling during long-time flight is studied for the parameter measurement demands in hypersonic flight test. Based on the analysis of environment characteristics and measurement demands, a novel plug hybrid sensor with self-fastening structure is designed, which could be used to achieve the surface temperature and heat flux data according to the measured result of temperature on the side of a cylinder. A polynomial approximation method based on the least square method is presented. FEA simulation results show that better anti-distortion and anti-noise performances could be achieved using the proposed method. The sensor is calibrated in an arc lamp heat flux sensor calibration system for heat flux verification. 98% response time of stainless steel sensor is about 0.7s. In addition, the measured results of heat flux are affected evidently by the adiabatic structure. The comparative test results of surface temperature show that the data achieved by the sensor could reflect the effect of surface temperature on heat flux.

Key words: apparatus and instruments technology, surface temperature, heat flux measurement, rapid response, sensor

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