Pyrheliometer
notes: label: Description
content: A pyrheliometer measures direct solar radiation. This rugged example designed by Charles Greeley Abbott uses a blackened silver-disc reflector with a shutter to create temperature fluctuations that are proportional to the intensity of the incident radiation. Some eighty examples were built in the shops of the Smithsonian Astrophysical Observatory, and used by research workers around the world.
label: Description
content: Ref: Charles Greeley Abbot and Loyal Blaine Aldrich, “Silver-Disk Pyrheliometer,” Smithsonian Miscellaneous Collections 56 No. 19 (1911).
label: Location
content: Currently not on view
setName: label: See more items in
content: Medicine and Science: Physical Sciences
creditLine: label: Credit Line
content: Smithsonian Astrophysical Observatory
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: PH.314679A
label: accession number
content: 209513
label: catalog number
content: 314679A
objectType: label: Object Name
content: Pyrheliometer, Silver Disk
physicalDescription: label: Measurements
content: overall: 18 1/2 in x 21 1/2 in x 12 in; 46.99 cm x 54.61 cm x 30.48 cm