Abstract
Solution of the transient response of intrinsic thermocouples by Henning and Parker are expanded to include temperature dependent properties. Finite difference and Runge-Kutta numerical solutions are compared with the analytical solution. Results for thermocouples for which the temperature variability is significant are presented. The approach allows the calculation of large temperature steps. An experimental method is described by which large step temperature increases can be simulated. The method also allows for large dimension substrate and thermowire, which reduce errors and slow-down real time performance to simplify measurements. Experiment and calculations agree well after the very initial response. It is suggested that the experiment described is suitable for the measurement of the prompt response of intrinsic thermocouples.
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