Optical Pyrometer
notes: label: Description
content: Around the turn of the twentieth century, Heinrich Wanner, of Waldhausen, Germany, unveiled a polarizing pyrometer that compared the luminous intensity of radiation of the same wavelength from two sources. This example of that instrument came from the Department of Chemical Engineering at the University of Michigan. The inscription reads “No. 417,”
label: Description
content: Ref: Heinrich Wanner, “Optical Pyrometer,” U.S. Patent 793,970 (July 4, 1905).
label: Location
content: Currently not on view
setName: label: See more items in
content: Medicine and Science: Physical Sciences
creditLine: label: Credit Line
content: University of Michigan, Department of Chemical Engineering
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: PH.319713
label: catalog number
content: 319713
label: accession number
content: 239025
objectType: label: Object Name
content: pyrometer, optical
physicalDescription: label: Measurements
content: box: 7 1/2 in x 13 1/4 in x 7 1/2 in; 19.05 cm x 33.655 cm x 19.05 cm
label: Measurements
content: dial: 3 1/2 in; 8.89 cm
label: Measurements
content: overall in case: 7 3/8 in x 13 1/4 in x 6 7/8 in; 18.7325 cm x 33.655 cm x 17.4625 cm