A calibration system for PTU devices

Research output: Contribution to journalArticleScientificpeer-review

4 Citations (Scopus)

Abstract

Devices measuring pressure, temperature and humidity simultaneously are known as PTU devices. There are hardly any commercial calibration systems for the PTU devices available for low temperatures (<0 °C). To obtain more comprehensive data on the performance of PTU devices, a new calibration system is developed at MIKES. In this PTU Apparatus, pressure, temperature and humidity can be controlled simultaneously so that all combinations over the ranges are possible. The nominal ranges of the system are the following: absolute pressure 500-1100 hPa, temperature -52 °C to +80 °C and relative humidity 10-95%. The target uncertainties (k = 2) of the pressure, temperature and humidity are 10 Pa, 0,1-0,3 °C and 1-3% RH, respectively. The construction and operation as well as the results of operational tests of the PTU Apparatus are reported in this paper.

Original languageEnglish
Pages (from-to)1583-1588
Number of pages6
JournalMeasurement
Volume43
Issue number10
DOIs
Publication statusPublished - 2010
MoE publication typeA1 Journal article-refereed

Fingerprint

humidity
Humidity
Calibration
Atmospheric humidity
Temperature
Relative Humidity
temperature
Range of data
Categorical or nominal
Uncertainty
Target

Keywords

  • Humidity
  • Pressure
  • PTU devices
  • Simultaneously control
  • Temperature

Cite this

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title = "A calibration system for PTU devices",
abstract = "Devices measuring pressure, temperature and humidity simultaneously are known as PTU devices. There are hardly any commercial calibration systems for the PTU devices available for low temperatures (<0 °C). To obtain more comprehensive data on the performance of PTU devices, a new calibration system is developed at MIKES. In this PTU Apparatus, pressure, temperature and humidity can be controlled simultaneously so that all combinations over the ranges are possible. The nominal ranges of the system are the following: absolute pressure 500-1100 hPa, temperature -52 °C to +80 °C and relative humidity 10-95{\%}. The target uncertainties (k = 2) of the pressure, temperature and humidity are 10 Pa, 0,1-0,3 °C and 1-3{\%} RH, respectively. The construction and operation as well as the results of operational tests of the PTU Apparatus are reported in this paper.",
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A calibration system for PTU devices. / Saxholm, Sari; Heinonen, Martti.

In: Measurement, Vol. 43, No. 10, 2010, p. 1583-1588.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Saxholm, Sari

AU - Heinonen, Martti

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