psychrometer


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Related to psychrometer: Sling psychrometer

psychrometer

 [si-krom´ĕ-ter]
an instrument for measuring the moisture of the atmosphere.

psy·chrom·e·ter

(sī-krom'ĕ-tĕr),
A device for measuring the humidity of the atmosphere by the difference in temperature between two thermometers, the bulb of one kept moist, the other dry. Evaporation from the moist bulb lowers the reading of that thermometer; the greater the difference in readings, the drier the air is; no difference indicates 100% relative humidity.
[psychro- + G. metron, measure]

psychrometer

[sīkrom′ətər]
an instrument for calculating the degree of humidity in the atmosphere by comparing the temperatures of two thermometers, one with a wet bulb, one dry. The difference in temperature between the two thermometers indicates the relative humidity.

psychrometer

an instrument for measuring the moisture of the atmosphere.
References in periodicals archive ?
To measure the wet-bulb temperature with an aspirated psychrometer, a moist air stream is drawn across a temperature sensor that is kept wetted by a moist cotton sock.
The psychrometer can be used outside to assure that dew point of outside air is at least 3[degrees]F below the desired room d.
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.
Since we always car ry a thermohygrometer or sling psychrometer with us, we have ready access to temperature and humidity readings.
The reliable, old-fashioned, hand-operated sling psychrometer costs about $100 (the lazy-person's unit with a battery-operated fan costs about $50 more), and the newest type of device, the digital pen-style pocket hygrometer, costs about $50.
Over the years, we found that a simple temperature- and humidity-measuring device, either a sling psychrometer or a compact digital thermo hygrometer, is indispensable.
Grab samples were taken with a sling psychrometer (Bacharach, Inc.
The humidity should be monitored with a hygrometer or a psychrometer.
Handheld moisture meters are often used to measure the moisture content of materials, and psychrometers to measure humidity; surface sampling of potentially contaminated areas is also common.
Leaf water potential was measured using thermocouple psychrometers.