Psychrometer to which a small chain or rotary handle is attached so that the observer can rotate the instrument rapidly to properly ventilate the thermometer bulbs.
A device for determining relative humidity that consists of a wet and dry bulb thermometer mounted in a frame that can be whirled about, usually by means of a handle and short piece of chain or wire rope attached to the upper end of the frame.
A device consisting of two thermometers, one of which has a dry bulb (normal thermometer) and the other of which has a bulb that is kept wet (by placing a wet fabric sleeve over the reservoir at the base of the thermometer). The difference between the wet and dry bulb temperatures is used to calculate relative humidity.
an inexpensive tool to determine humidity
An instrument used to determine relative humidity. It consists of a wet and dry bulb thermometer, with the difference between their readings constituting the measure of the moisture in the air (Nauert 1979).
an instrument consisting of a wet bulb and dry bulb thermometer used to measure the amount of moisture in the air or relative humidity
A hand operated instrument for obtaining wet and dry bulb temperature readings and, subsequently, relative humidity.
A device with two thermometers, one a wet bulb and one a dry bulb, used for checking air conditions, temperature, and humidity.
Coupled wet and dry-bulb mercury-in-glass thermometers arranged with a handle so that it can be whirled about an observer. Used to measure humidity.
A simple instrument used to measure temperature and relative humidity Sling psychrometer's are relatively inexpensive to purchase compared to a thermohygrograph, but are very accurate when used properly.
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. Thus, the psychrometer may be whirled by hand in order to provide the necessary ventilation.
