A calibration system for ptu devices

Sari Semenoja, Martti Heinonen

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

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 hPa 1200 hPa, temperature -52°C +80°C and relative humidity 10 % 95 %. The estimated uncertainties (k = 2) of the pressure, temperature and humidity are 10 Pa, 0,1°C to 0,3°C and 1 %RH to 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
Title of host publication3rd IMEKO TC16 International Conference on Pressure Measurement 2007
Pages99-107
Number of pages9
Publication statusPublished - 2007
MoE publication typeA4 Article in a conference publication
Event3rd IMEKO TC16 International Conference on Pressure Measurement 2007 - Merida, Mexico
Duration: 27 Nov 20071 Dec 2007

Conference

Conference3rd IMEKO TC16 International Conference on Pressure Measurement 2007
CountryMexico
CityMerida
Period27/11/071/12/07

Keywords

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

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  • Cite this

    Semenoja, S., & Heinonen, M. (2007). A calibration system for ptu devices. In 3rd IMEKO TC16 International Conference on Pressure Measurement 2007 (pp. 99-107)