Al Tobias (wat4y) - Office: Gibson S123 & Physics 218, (434) 924-0538
Demonstrations are cataloged according to PIRA Bibliography
PLEASE REQUEST DEMOS WELL IN ADVANCE
Due to Physics Building renovations, the lead time to set up demo requests has increased due to the need to transport equipment across campus. Please be kind and let me know well ahead of time what you need.
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You have selected the following Demos:
Sling Psychrometer (Relative Humidity)
Purpose:To measure the relative humidity with a wet and dry bulb thermometer apparatus.
Procedure:The sling psychrometer has two thermometers, one bulb with a wet sock dipped in water, that are attached to a swiveled handle. This allows one to whirl the apparatus around the air in order to make a relative humidity measurement of the air. Using a hygrometer table, the difference between the dry and wet temperature readings (t-t') gives us the humidity in % relative.