Volume 66 Issue 7
Aug.  2022
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LI Chao, ZENG Lin, CHEN Yuefei, LUO Jianming. Feasibility Study for Calibration of Precision Thermometers With Thermostatic Calorimeters[J]. Metrology Science and Technology, 2022, 66(7): 38-44. doi: 10.12338/j.issn.2096-9015.2021.0521
Citation: LI Chao, ZENG Lin, CHEN Yuefei, LUO Jianming. Feasibility Study for Calibration of Precision Thermometers With Thermostatic Calorimeters[J]. Metrology Science and Technology, 2022, 66(7): 38-44. doi: 10.12338/j.issn.2096-9015.2021.0521

Feasibility Study for Calibration of Precision Thermometers With Thermostatic Calorimeters

doi: 10.12338/j.issn.2096-9015.2021.0521
  • Received Date: 2021-06-08
  • Accepted Date: 2022-04-07
  • Available Online: 2022-07-14
  • Publish Date: 2022-08-04
  • With the large-scale application of precision thermometers with a temperature measurement accuracy of up to 1 mK or even 0.1 mK in experimental equipment and aerospace equipment, higher requirements are placed on the temperature control accuracy of the thermostatic bath used in the traceability of precision temperature measurement values. A thermostatic bath with a temperature control accuracy of less than 1/10,000 to meet the traceability requirements of its value. In this paper, the model of the thermostatic bath for testing precision thermometers is built by using the thermostatic calorimeter temperature control mode, and through theoretical analysis and experimental verification, the thermostatic bath model can meet the calibration requirements of precision thermometers with a temperature measurement accuracy of 1 mK or even 0.1 mK.
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