Infrared thermometers for minimizing errors associated with ambi

Details Infrared thermometers for minimizing errors associated with ambi Infrared thermometers for minimizing errors associated with ambi

1985-09-04

1988-02-02

Yasich, Daniel M.

Thermal measuring and testing

Temperature measurement

In spaced noncontact relationship to specimen

136230, 250339, 2505151, 374133, 374208, G01J 516, G01J 526

Patent

active

047226129

ABSTRACT:
A thermopile detector means for a temperature measuring instrument physically and electrically configured to supply an output signal which indicates target temperature substantially independent of the influence of ambient temperature changes. The detector means includes a first thermopile device exposed to radiation from the target and a transducer means, preferably a second thermopile device, shielded from the target and connected in series opposition to the first.

REFERENCES:
patent: 4301682 (1981-11-01), Everest
patent: 4343182 (1982-08-01), Pompei
patent: 4435092 (1984-03-01), Iuchi
patent: 4456390 (1984-06-01), Junkert et al.
patent: 4456919 (1984-06-01), Tomita et al.
patent: 4472594 (1984-09-01), Ishida
patent: 4538464 (1985-09-01), Wheatley et al.
patent: 4634294 (1987-01-01), Christol et al.

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