Temperature measuring apparatus

Details Temperature measuring apparatus Temperature measuring apparatus

1976-05-20

1977-09-13

Queisser, Richard C.

Measuring and testing

Gas analysis

Moisture content or vapor pressure

G01K 700

Patent

active

040474356

ABSTRACT:
Temperature sensing apparatus utilizing a single temperature sensing diode which is supplied with a constant level of current. The voltage across the diode having the constant current therethrough is compared with a constant voltage reference in a summing means and the deviation of the sensing diode with respect to the constant voltage reference is utilized as an indication of temperature.

REFERENCES:
patent: 3491596 (1970-01-01), Dean
patent: 3701004 (1972-10-01), Tuccinardi et al.
patent: 3780585 (1973-12-01), Milo
patent: 3791217 (1974-02-01), Stout et al.
patent: 3880006 (1975-04-01), Poduje
patent: 3995810 (1976-12-01), Banks
Huen, Tony; "Semiconductor Diode Low Temperature Thermometer;" Rev. Sci. Instr; vol. 41, No. 9; Sept. 1970; pp. 1368-1369; AU 244.

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