Thermal equivalence error of microwave power measurement

Liu Xin-meng, Peng Xi-yuan, Cui Xiao-hai
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引用次数: 1

Abstract

It is proved that effective efficiency of a thermistor mount changes with its heat transfer condition. A system error is found after a comparison between heat transfer procedure in a microcalorimeter and the one during a power measurement procedure. The error is named thermal equivalent error in this paper. It is analyzed in details and its analytic expression is derived. As a conclusion, a method is suggested to avoid this error at last.
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微波功率测量的热等效误差
证明了热敏电阻的有效效率随其传热条件的变化而变化。通过对微量热计的传热过程与功率测量过程的比较,发现了系统误差。本文将此误差称为热等效误差。对其进行了详细的分析,并推导出其解析表达式。最后提出了一种避免这种误差的方法。
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