Assmann Psychrometer

Assmann Psychrometer

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Richard Assmann, a German meteorologist and professor at the University of Berlin, designed an "aspiration psychrometer" that used a clockwork fan to draw air past the bulbs. This example, of Soviet origin, has an electric rather than a clockwork motor. It bears the numbers A735203 and N124936.
Ref: Assmann, "Aspirationspsychromometer," Zeitschrift fur Instrumentenkunde 12 (1892): 1-12.
Currently not on view
Object Name
date made
ca 1941
overall: 4 7/8 in x 18 1/8 in x 4 5/8 in; 12.3825 cm x 46.0375 cm x 11.7475 cm
ID Number
accession number
catalog number
Credit Line
U.S. Weather Bureau
U.S. Weather Bureau
See more items in
Medicine and Science: Physical Sciences
Measuring & Mapping
Thermometers and Hygrometers
Data Source
National Museum of American History
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