Coblentz Instruments

Early type photo cells used in ozone measurements by balloons. One of the first photo sensitive materials showing bulk material. Wire gratings. Magnetic type galvanometer made by Colbentz. Microradiator with thermocouple between magnetic poles (1906). Selenium cell from Germany., Credit Line: AIP Emilio Segrè Visual Archives
Abstract/Description: Early type photo cells used in ozone measurements by balloons. One of the first photo sensitive materials showing bulk material. Wire gratings. Magnetic type galvanometer made by Colbentz. Microradiator with thermocouple between magnetic poles (1906). Selenium cell from Germany.
Subject(s): Equipment and supplies
Instruments
Magnets
Coblentz, William W. (William Weber), 1873-1962
Credit Line: AIP Emilio Segrè Visual Archives
Catalog ID: Coblentz William F4