Mathematical simulation of thermocouple characteristics

Abouellail, A. A.; Kostina, M. A.; Bortalevich, S. I.; Логинов, Е Л; Shinyakov, Yuriy A.; Sukhorukov, M. P.

doi:10.1088/1757-899x/327/2/022002

Cited by 8 publications

(1 citation statement)

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“…In essence, a thermocouple consists of a pair of unlike conductors also known as the thermoelements, of which a thermoelectric circuit is composed. Thermocouples have found usefulness in research and industrial applications because of their fast thermal responses, higher precision, ruggedness, and high efficiency in extreme conditions [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Performance Characteristics of Custom Thermocouples for Specialized Applications

2021

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This work reports the performance characteristics of custom thermocouples developed for use in elevated temperatures such as metal casting operations. The scope of this research is limited to thermocouples designed using pyrolytic graphite (PG) as the primary thermoelement in connection with aluminum, copper, steel, and tungsten. The Seebeck coefficients of the sensors were determined from experimental data after heating to ~500 °C. Cooling from ~500 °C to room temperature enabled us to compare the characteristic behaviors of the sensors from the obtained near-linear responses in the voltage-temperature plots. Tungsten being a refractory metal produced the highest sensitivity of the sensors. The sensitivity of the PG-tungsten thermocouple upon heating measured up to 26 μV/°C and a slightly lower value of 24.2 μV/°C was obtained upon cooling. Conversely, the PG-steel thermocouple rather produced the lowest Seebeck coefficients of 13.8 μV/°C during heating and 14.0 μV/°C for the cooling experiments though steel has a high melting temperature than most of the other thermoelements.

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Section: Introductionmentioning

confidence: 99%