Thermoelectric Circuits and the Performance of Several Aircraft Engine Thermocouples
|Publication Date:||1 August 1958|
The NET EMF of a thermoolectric circuit can be thought of as originating entiroly in the regions of temperature gradient. Any extraneous materials, such as switoh or connector terminals, in a temperature gradient nay cause an error in the temperature measurement.
In addition to circuitry errors, jet engine thermocouple indications require correction for the effects of conduction, radiation, response rate, and gas velocity. The magnitudes of the corrections depend on the thermocouple design and the environmental conditions. Performance curves for several typical Jet engine thermocouples arc presented,with the methods of making the various corrections.