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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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Humidity is an important physical quantity that is closely related with the quality of everyday life as well as the quality control of products in various industries. Here, we have developed a divided-flow type humidity generator of which humidity generation is faster than the saturator-based humidity generator in ppm level. The operation principle of the divided-flow humidity generator is first introduced. Then, the performance of the divided-flow humidity generator is verified by testing the radiosonde humidity sensor at low temperature. As a result, the humidity generated from the divided-flow humidity generator is consistent with the saturator-based precision humidity generator within 1.6% relative humidity in the range from 10% to 40% at -45oC. It is also found that the radiosonde humidity sensor shows measurement errors by 3% - 5% at -45oC when it is only calibrated at room temperature. The response times of radiosonde humidity sensor using the divided-flow humidity generator are between about 2 and 9 minutes, whereas those by the saturatorbased humidity generator are about 20 minutes. In this regard, the divided-flow humidity generator has a merit in terms of fast humidity changes for the calibration of radiosonde humidity sensors at low-temperatures.
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참고문헌 (11)
참고문헌 신청
H. H. Funke / 2003 / Techniques for the measurement of trace moisture in high-purity electronic specialty gases / Rev. Sci. Instrum. 74(9):3909~3933
J. S. Park / 2011 / Thin film encapsulation for flexible AM-OLED : a review / Semicond. Sci. Technol. 26(3):034001
R. J. Dirksen / 2014 / Reference quality upper-air measurements : GRUAN data processing for the Vaisala RS92radiosonde / Atmos. Meas. Tech. 7(12):4463~4490
C. Cardinali / 2003 / Use and impact of automated aircraft data in a global 4DVAR data assimilation system / Mon. Weather. Rev. 131(8):1865~1877
S. W. Lee. / 2019 / Development of a low-temperature low-pressure humidity chamber for calibration of radiosonde humidity sensors / Metrologia 56(2):025009
J. S. Park / 2011 / Thin film encapsulation for flexible AM-OLED : a review / Semicond. Sci. Technol. 26(3):034001
R. J. Dirksen / 2014 / Reference quality upper-air measurements : GRUAN data processing for the Vaisala RS92radiosonde / Atmos. Meas. Tech. 7(12):4463~4490
C. Cardinali / 2003 / Use and impact of automated aircraft data in a global 4DVAR data assimilation system / Mon. Weather. Rev. 131(8):1865~1877
S. W. Lee. / 2019 / Development of a low-temperature low-pressure humidity chamber for calibration of radiosonde humidity sensors / Metrologia 56(2):025009
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