title: Temperature control of a tungsten incadescent lamp.
abstract: A thermostatic control for a tungsten incadescent lamp is described. The circuit employs an operational amplifier feedback circuit to adjust the filament current and thereby achieve a constant filament temperature. The filament temperature is adjustable over a wide range by adjusting a potentimeter. Since the calibration of the thermostat does not, in principle, require temperature or radiometric measurements, the design may be useful in setting up a primary radiometric standard.
authors.affiliation: Wentworth Institute of Technology, 550 Huntington Avenue, Boston, Massachusetts 02115, USA.
authors.forename: C G
authors.initials: CG
authors.lastname: Masi