Payagala, S.
, Panna, A.
, Rigosi, A.
and Jarrett, D.
(2020),
Advanced Temperature-Control Chamber for Resistance Standards, Journal of Research (NIST JRES), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/jres.125.012
(Accessed December 16, 2024)
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Advanced Temperature-Control Chamber for Resistance Standards
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Author(s)
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Abstract
Calibration services for resistance metrology have continued to advance their capabilities and establish new and improved methods for maintaining standard resistors. Despite the high quality of these methods, there still exist inherent limitations to the number of simultaneous, measurable resistors and the temperature stability of their air environment. In that context, we report progress on the design, development, and initial testing of a precise temperature-control chamber for standard resistors that can provide a constant-temperature environment with a stability of ± 6 m°C. Achieving this stability involved customizing the chamber design based on air-flow simulations. Moreover, microprocessor programming allowed the air flow to be optimized within an unsealed chamber configuration to reduce chamber temperature recovery times. Further tests were conducted to improve the stability of the control system and the efficiency of the chamber.Citation
Journal of Research (NIST JRES) -
Volume
125
NIST Pub Series
Pub Type
NIST Pubs
Download Paper
Keywords
air-flow simulations, measurement, standard resistor, temperature-control chamber.
Citation
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Created April 9, 2020, Updated October 12, 2021