sling psychrometer


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sling psychrometer

[′sliŋ si′kräm·əd·ər]
(engineering)
A psychrometer in which the wet- and dry-bulb thermometers are mounted upon a frame connected to a handle at one end by means of a bearing or a length of chain; the psychrometer may be whirled in the air for the simultaneous measurement of wet- and dry-bulb temperatures.

sling psychrometer

A psychrometer to which a handle is attached; the apparatus is whirled in the air until the reading of the wet-bulb thermometer reaches a constant value.

sling psychrometer

An instrument used to measure the amount of water vapor or relative humidity in the air. It is a combination of wet- and dry-bulb thermometers mounted on a frame with a handle that allows it to be swung around to permit air to move across the psychrometer. See psychrometer.
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References in periodicals archive ?
While the sling psychrometer certainly meets the spirit of the standards, each one of us spins the unit at our own pace--the variability determined by our enthusiasm or lack thereof.
On rare occasions, we have questioned the accuracy of these units and have used a sling psychrometer to confirm the readings.
The sling psychrometer is about as old as the sealed glass thermometer itself.