Whirling Psychrometer, 1950-1953
Whirling psychrometer, also known as a sling psychrometer, for measuring humidity, designed by J. J. Griffin & Son Ltd. and made to B.S.2842 by A. Gallenkamp & Co. Ltd., Finsbury, London, UK, 1950-1953. Contains wet and dry bulb thermometers.
Whirling or sling psychrometers are types of hygrometers for measuring air humidity. They contain two thermometers, one of which has a bulb kept wet with a cloth soaked in distilled water. The device is whirled rapidly in the air, and the difference in the readings between the two thermometers gives a measure of humidity.
Details
- Category:
- Meteorology
- Object Number:
- 1993-1037
- Materials:
- wood (unidentified), brass (copper, zinc alloy), steel (metal), glass, mercury, textile and chromium plated
- Measurements:
-
overall (lying down): 30 mm x 215 mm x 175 mm, .215kg
- type:
- hygrometer and psychrometer
- credit:
- Physiological Society