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http://dx.doi.org/10.5369/JSST.2009.18.2.103

Characteristics variation of thermal time constant of thermocouples by the structure changes  

Gam, Kee-Sool (Division of Physical Metrology, KRISS)
Publication Information
Journal of Sensor Science and Technology / v.18, no.2, 2009 , pp. 103-109 More about this Journal
Abstract
Thermal time constant measurement system was designed and fabricated to measure the thermal time constant, which shows a dynamic property of the thermocouple. Type K thermocouple samples were fabricated with variable shape each other and the thermal time constants of thermocouples were measured using the home-made thermal time constant measurement system. Thermal time constants of 12 type K thermocouple samples were distributed from 0.03 s to 8.2 s. It showed experimentally that the thermal time constant of thermocouple was increased linearly for the increase of the sheath diameter of thermocouple.
Keywords
thermal time constant; dynamic property; type K thermocouple;
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