Applied Scientific Research, Section A

, Volume 4, Issue 2, pp 120–126 | Cite as

An oscillating psychrometer for micro-meteorological purposes

  • C. T. De Wit


A Psychrometer is described which is adequately ventilated by oscillating the dry and wet thermocouples with an amplitude of about 1.5 cm and a frequency of about 40 hertz. The temperature and humidity profile is destroyed to a far less extent with this meter than with Psychrometers ventilated in the ordinary way. It has been shown that the true vapour pressure of the air is measured by means of an irradiated Psychrometer if the dimensions and the reflection coefficients of the dry and wet bulbs are the same.


Reflection Coefficient Forced Convection Heat Budget Thermocouple Wire Continuous Registration 
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Copyright information

© Martinus Nijhoff, The Hague/Kluwer Academic Publishers 1953

Authors and Affiliations

  • C. T. De Wit
    • 1
  1. 1.Laboratory of Physics and Meteorology, Agricultural Physico-Technical ServiceAgricultural UniversityWageningenHolland

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