Investigation of the dew-point temperature scale maintained at the MIKES

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4 Citations (Scopus)

Abstract

For the investigation of the dew-point temperature scale realized by the MIKES primary dew-point generator, a two-pressure generator and a dew-point indicator based on condensation in a cooled coil were constructed and tested. In addition, a chilled mirror hygrometer was validated by means of an uncertainty analysis. The comparison of these systems was focused on the dew-point temperature range from -40°C to -20°C but measurements were made up to +75°C. The generator systems were compared using a dew-point comparator based on two relative humidity sensors. According to the results of the comparisons, the differences between the measurement systems were less than 0.05°C, while the expanded uncertainty of the MIKES generator was between ±0.05°C and ±0.08°C. The uncertainty of the other systems was from ±0.04°C to ±0.14°C. It was concluded that the dew-point temperature scale was not dependent on the realization method.

Original languageEnglish
Pages (from-to)36-40
Number of pages5
JournalMeasurement Science and Technology
Volume10
Issue number1
DOIs
Publication statusPublished - 1999
MoE publication typeA1 Journal article-refereed

Fingerprint

Temperature scales
dew point
temperature scales
Hygrometers
Humidity sensors
Uncertainty analysis
generators
Generator
Condensation
Atmospheric humidity
Mirrors
hygrometers
Uncertainty
Uncertainty Analysis
Relative Humidity
Coil
Measurement System
Temperature
humidity
Mirror

Keywords

  • Chilled mirror hygrometer
  • Cooled coil dew-point indicator
  • Dew-point temperature
  • Humidity generator
  • Standards and calibration

Cite this

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title = "Investigation of the dew-point temperature scale maintained at the MIKES",
abstract = "For the investigation of the dew-point temperature scale realized by the MIKES primary dew-point generator, a two-pressure generator and a dew-point indicator based on condensation in a cooled coil were constructed and tested. In addition, a chilled mirror hygrometer was validated by means of an uncertainty analysis. The comparison of these systems was focused on the dew-point temperature range from -40°C to -20°C but measurements were made up to +75°C. The generator systems were compared using a dew-point comparator based on two relative humidity sensors. According to the results of the comparisons, the differences between the measurement systems were less than 0.05°C, while the expanded uncertainty of the MIKES generator was between ±0.05°C and ±0.08°C. The uncertainty of the other systems was from ±0.04°C to ±0.14°C. It was concluded that the dew-point temperature scale was not dependent on the realization method.",
keywords = "Chilled mirror hygrometer, Cooled coil dew-point indicator, Dew-point temperature, Humidity generator, Standards and calibration",
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Investigation of the dew-point temperature scale maintained at the MIKES. / Heinonen, Martti.

In: Measurement Science and Technology, Vol. 10, No. 1, 1999, p. 36-40.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Investigation of the dew-point temperature scale maintained at the MIKES

AU - Heinonen, Martti

PY - 1999

Y1 - 1999

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AB - For the investigation of the dew-point temperature scale realized by the MIKES primary dew-point generator, a two-pressure generator and a dew-point indicator based on condensation in a cooled coil were constructed and tested. In addition, a chilled mirror hygrometer was validated by means of an uncertainty analysis. The comparison of these systems was focused on the dew-point temperature range from -40°C to -20°C but measurements were made up to +75°C. The generator systems were compared using a dew-point comparator based on two relative humidity sensors. According to the results of the comparisons, the differences between the measurement systems were less than 0.05°C, while the expanded uncertainty of the MIKES generator was between ±0.05°C and ±0.08°C. The uncertainty of the other systems was from ±0.04°C to ±0.14°C. It was concluded that the dew-point temperature scale was not dependent on the realization method.

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KW - Cooled coil dew-point indicator

KW - Dew-point temperature

KW - Humidity generator

KW - Standards and calibration

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