A fast response psychrometer

Koninklijk Nederlands Meteorologisch Instituut, Meteorologisch Onderzoek, W. Kohsiek and W.A.A. Monna
De Bilt : Koninklijk Nederlands Meteorologisch Instituut (KNMI)
1980

KNMIAUT80 A fast thermocouple psychrometer is described. The sensors, which are constructed from head-on welded chromel-alumel junctions of 50 mu m diameter wire, are mounted vertically. The wick is a fine polyester thread covering the thermocouple wires over a length of about 20 mm. The wet junction is supplied with water by droplets falling along the wick with a frequency of about one per minute.

III, 33 p.
fig. ; 30 cm.
) Ref.(Wetenschappelijk rapport = Scientific report ; WR 80-4 (MO)