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www.nasa.gov/centers/langley/pdf/245887main_Meteorology...

a sling psychrometer is used to determine relative humidity and how to read a chart to determine this relationship. In addition, the student will establish a basic understanding of dew point. Further, pro-viding the student additional and basic understand-ings of other factors that constitute the study of meteorology.

sciencing.com/read-sling-psychrometer-5333022.html

A sling psychrometer is an instrument that measures the relative humidity and dew point in an area. A sling psychrometer has two thermometers: a wet bulb and a dry bulb. The wet bulb has a cotton wick over the bulb of the thermometer, which is moistened with room temperature water.

www.dwyer-inst.com/.../Psychrometer-SlideCharts

Pocket type sling psychrometer, furnished complete with psychrometric charts, psychrometric slide chart, and carrying case. 1-2 Weeks* $181.00 Order : A-527 Ships: 1-2 Weeks ... Psychrometer & Slide Charts Catalog Page; Photo Downloads You must be logged in to view this content.

www.sciencedirect.com/topics/engineering/sling-psychrometer

A hygrometer uses two thermometers, one dry (dry bulb) and one covered in a fabric saturated with distilled water (wet bulb). Air is passed over both thermometers, either by a fan or by swinging the instrument, as in a sling psychrometer. A psychrometric chart can then be used to calculate humidity by using the dry and wet bulb temperatures.

sciencestruck.com/how-does-sling-psychrometer-work

A sling psychrometer is a simple instrument that can be used to measure the humidity in the air. Here, we shall find out how a sling psychrometer works.

en.wikipedia.org/wiki/Hygrometer

A hygrometer (/ h aɪ ˈ ɡ r ɒ m ɪ t ər /) is an instrument used to measure the amount of humidity and water vapor in the atmosphere, in soil, or in confined spaces. Humidity measurement instruments usually rely on measurements of some other quantity such as temperature, pressure, mass, a mechanical or electrical change in a substance as moisture is absorbed.

en.wikipedia.org/wiki/Psychrometrics

A sling psychrometer requires manual operation to create the airflow over the bulbs, but a powered psychrometer includes a fan for this function. Knowing both the dry-bulb temperature (DBT) and wet-bulb temperature (WBT), one can determine the relative humidity (RH) from the psychrometric chart appropriate to the air pressure.

www.globalgilson.com/sling-psychrometer

MA-164 Sling Psychrometer, also known as a whirling hygrometer, determines relative humidity in a range of 1% to 97% RH.The hand-held, easy-to-use hard plastic unit protects two encased red-spirit filled thermometers with temperature ranges of -5—50°C (20—120°F).

www.aos.wisc.edu/~aos330/labs/psychro.pdf

Instructions for using the sling psychrometer AOS 330 Prof. Petty Sling psychrometers are the standard for accurately measuring ambient temperature and humidity. Every meteorologist should know how to use one correctly. 1. Inspect the cotton wick on the sling psychrometer and make sure that it is in good condition and rmly in contact with the ...

www.iowadot.gov/erl/current/IM/content/382.htm

A psychrometer measures the ambient air temperature (dry bulb temperature) and the wet bulb temperature. From these temperature measurements, the percent relative humidity is determined. APPARATUS . 1. Sling psychrometer . PROCEDURE . 1. Before using, take the end cap off the psychrometer and fill the reservoir with water.