Abstract
An analysis is given of the condition of a digital thermometer utilizing thermoelectric converters (thermocouples). A method is established for digitally correcting the errors due to nonlinearity and instability of the calibration characteristic of a thermocouple by providing additional heating and cooling of its working end by passing calibrated electric current pulses through it. A microprocessor is used to process the effects on the thermocouple of the additional current, without dismantling it from its operating location, in order to correct the errors of the thermoelectric thermometer.
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Additional information
Translated from Izmeritel'naya Tekhnika, No. 5, pp. 42–46, May, 1996.
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Skripnik, Y.A., Khimicheva, A.I. Linearization and stabilization of the conversion characteristics of a thermoelectric thermometer. Meas Tech 39, 532–539 (1996). https://doi.org/10.1007/BF02375764
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DOI: https://doi.org/10.1007/BF02375764