Method and apparatus for precision temperature measurement

Details Method and apparatus for precision temperature measurement Method and apparatus for precision temperature measurement

1982-05-14

1984-12-18

Goldberg, Gerald

Thermal measuring and testing

Temperature measurement

By electrical or magnetic heat sensor

374178, G01K 712

Patent

active

044888244

ABSTRACT:
A bandgap voltage reference and temperature sensor is used to determine accurately the temperature of the cold junction of a thermocouple for algebraic combination with the thermocouple signal to provide precision temperature measurements with thermocouple speed. In a discrete component embodiment copper slugs function as thermal inertial elements to equalize the thermal response rates of the temperature sensor and thermocouple. In an IC embodiment the cold junction is located on the chip in close proximity to the temperature sensor component in the chip thereby avoiding any thermal differential between cold junction and sensor.

REFERENCES:
patent: 3280630 (1966-10-01), Latham, Jr.
patent: 3461380 (1969-08-01), McGee
patent: 3903743 (1975-09-01), Noller
patent: 3921453 (1975-11-01), Platzer, Jr.
patent: 4120201 (1978-10-01), Wango
patent: 4126042 (1978-11-01), Lynch
patent: 4133700 (1979-01-01), Hollander et al.
patent: 4157663 (1979-04-01), Ihlenfeldt et al.

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