Wide range, quick response temperature probe sensor

Details Wide range, quick response temperature probe sensor Wide range, quick response temperature probe sensor

1978-05-30

1980-01-29

Albritton, C. L.

Electrical resistors

Resistance value responsive to a condition

Ambient temperature

73362AR, H01C 704

Patent

active

041863682

ABSTRACT:
An improved resistance-type sensor for an electrical temperature probe includes a thin-film platinum resistor deposited on an oxidized silicon chip. The chip is eutectically bonded to the planar reverse side of a beryllium oxide tip-piece having a hemispherical face adapted for contacting the surface of an object being measured. The tip-piece is set in a thermal insulating plastic mount, spaced from a pair of low resistance electrical leads held by the mount. Very fine wires bonded between the leads and platinum resistor form high thermal impedance electrical connections to the temperature-sensing element.

REFERENCES:
patent: 3005171 (1961-10-01), Beckman
patent: 3123790 (1964-03-01), Tyler
patent: 3147457 (1964-09-01), Gill et al.
patent: 3167733 (1965-01-01), Di Noia
patent: 3286214 (1966-11-01), Kolb et al.
patent: 3776040 (1973-12-01), Gould

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