汎用温度センサの応答補償 : 周波数応答特性の理論解析と熱時定数の同定(熱工学,内燃機関,動力など)

概要

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This study is a theoretical analysis of the frequency response of general-purpose temperature sensors (thermistors) and the compensation for the delay of the response. A "two-thermocouple probe technique" developed previously (Tagawa & Ohta, 1997) was applied to the estimation of the thermal time-constant values of thermistors whose frequency response can be modeled by a firstorder system. Two thermistors of unequal time-constant values were combined in a probe, and the schemes for the time-constant identification and the response compensation were experimentally tested in air and water flows. The results show that the proposed estimation scheme can provide reliable predictions of the thermistor response, and that the compensation technique works successfully.
社団法人日本機械学会の論文
2003-02-25