Radiometer for the determination of a temperature of a body by m

Details Radiometer for the determination of a temperature of a body by m Radiometer for the determination of a temperature of a body by m

1995-08-21

1998-04-21

Gutierrez, Diego F. F.

Thermal measuring and testing

Temperature measurement

By electrical or magnetic heat sensor

G01K 730

Patent

active

057410712

ABSTRACT:
Radiometer for the determination of a temperature of a body by measuring emitted thermal noise and measurement process using this radiometer. The radiometer includes a double radiofrequency signal amplification chain (1) for thermal noises, one of whose branches (2') continuously measures a thermal noise signal generated by a predetermined reference source (3), two converter circuits (5, 5', 6, 6') whose continuous signals are transmitted to a unit (8) for control, processing and evaluation, and means (9, 10, 11) for changing the heterodyne frequency transposition of the radiofrequency signal frequencies of the thermal noise processed in the two branches (2 and 2').

REFERENCES:
patent: 3818761 (1974-06-01), Brixy et al.
patent: 3878723 (1975-04-01), Blalock et al.
patent: 3890841 (1975-06-01), Brixy
patent: 4099413 (1978-07-01), Ohte et al.

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