Radiometer

Details Radiometer Radiometer

1985-02-05

1987-10-27

Frankfort, Charles

Thermal measuring and testing

Temperature measurement

In spaced noncontact relationship to specimen

374126, 374102, 374103, G01J 504

Patent

active

047026189

ABSTRACT:
A thermal radiometer for measuring thermal irradiation, includes a housing, a shutter mounted on a wall of the housing, a thermally conductive element positioned behind the shutter, the conductive element having a black surface facing the shutter, and a device for measuring the temperature of the conductive element. The outer face of the shutter is thermally reflective, and the radiometer includes a circuit for calculating the rate of temperature rise of the conductive element after opening the shutter and an indicator responsive to the calculating circuit for displaying a value which is proportional to the rate of temperature rise. A method for measuring thermal irradiation with the apparatus includes the steps of positioning a thermally conductive element having a black surface behind a shutter with the black surface facing the shutter, allowing the element to assume ambient temperature, opening the shutter and measuring the subsequent rate of temperature rise of the element, and using the rate of temperature rise to determine the level of irradiation.

REFERENCES:
patent: 2510397 (1950-06-01), Hansell
patent: 3160009 (1964-12-01), Carney
patent: 3352156 (1967-11-01), Beitz
patent: 3916690 (1975-11-01), Brandli
patent: 4031739 (1977-06-01), Springer
patent: 4342912 (1982-08-01), Adamson

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