Aspiration Psychrometer

Description:

In the late 1880s, a German meteorologist named Adolph Richard Assmann designed an aspiration instrument with a fan to draw air past the wet- and dry-bulb thermometers of a common psychrometer. Assmann also enclosed the device in double-walled ducts of polished metal designed to minimize the effect of radiation. This form remained in widespread use for many years.

The clockwork housing of this example is marked "R. Fuess / Berlin-Steglitz / No. 189500." The back side of the thermometer scales are marked "CENTIGRADE R. FUESS, BERLIN-STEGLITZ JENAER Normaliglas 16111."

Ref: R. Fuess, Liste D2 über Thermometer, Psychrometer, Hygrometer und Hypsometer (Steglitz bei Berlin, 1910), p. 6.

Date Made: after 1891

Maker: R. Fuess

Location: Currently not on view

See more items in: Medicine and Science: Physical Sciences, Thermometers and Hygrometers, Measuring & Mapping

Exhibition:

Exhibition Location:

Credit Line: Freer Gallery of Art

Data Source: National Museum of American History

Id Number: 1988.0794.01Catalog Number: 1988.0794.01Accession Number: 1988.0794

Object Name: aspiration psychrometer

Measurements: overall: 16 3/4 in; 42.545 cmoverall: 5 3/8 in x 16 5/8 in x 5 1/4 in; 13.6525 cm x 42.2275 cm x 13.335 cm

Guid: http://n2t.net/ark:/65665/ng49ca746ad-9868-704b-e053-15f76fa0b4fa

Record Id: nmah_1419378

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