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Response Characteristics of Dew Point Hygrometer by Connection Order in Series in Calibration

Yun-Kyung Bae
Industrial & Physical Instrument Standard Center, Korea Testing Laboratory, Gyeonggi-do, Korea

Abstract—In this study, we present the respective calibration set up and procedure with serial connection for dew point hygrometers with chilled mirror and aluminum oxide types. To evaluate in more detail the response characteristics according to dew point hygrometers by connection order in series, the variation of measured dew point temperatures and uncertainty contribution rate due to the connection order of hygrometers were investigated for two types of hygrometers the most widely used. We suggest treatment method for measurement deviation caused by multiple series connection and appropriate connection method due to dew point hygrometer types. The calibrations were conducted according to standard calibration procedure of Korea Testing Laboratory accredited from ILAC (International Laboratory Accreditation Cooperation) and KOLAS (Korea Laboratory Accreditation Scheme).

Index Terms—dew point temperature, connection order, calibration, measurement uncertainty, uncertainty contribution

Cite: Yun-Kyung Bae, "Response Characteristics of Dew Point Hygrometer by Connection Order in Series in Calibration," International Journal of Mechanical Engineering and Robotics Research, Vol. 9, No. 10, pp. 1474-1479, October 2020. DOI: 10.18178/ijmerr.9.10.1474-1479

Copyright © 2020 by the authors. This is an open access article distributed under the Creative Commons Attribution License (CC BY-NC-ND 4.0), which permits use, distribution and reproduction in any medium, provided that the article is properly cited, the use is non-commercial and no modifications or adaptations are made.