Temperature sensor

Details Temperature sensor Temperature sensor

1996-05-13

1998-01-20

Bennett, G. Bradley

Thermal measuring and testing

Temperature measurement

In spaced noncontact relationship to specimen

374126, G01J 502

Patent

active

057094730

ABSTRACT:
A temperature sensor comprising: a wave guide with a cylindrical wall; a material of low emissivity included at the cylindrical wall for generating black body radiation into the wave guide, wherein at least a portion of the generated black body radiation is carried through the wave guide; a first sensor receiving the generated black body radiation and providing a first output signal indicative of a first magnitude of a first bandwidth of the generated black body radiation; and a second sensor receiving the generated black body radiation and providing a second output signal indicative of a second magnitude of a second bandwidth of the generated black body radiation, wherein a difference between the first and second output signals is a linearized indication of temperature of at least a portion of the wave guide.

REFERENCES:
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patent: 4765752 (1988-08-01), Beynon et al.
patent: 4770544 (1988-09-01), Mossey
patent: 4790669 (1988-12-01), Christensen
patent: 5164999 (1992-11-01), Shifflett
patent: 5191206 (1993-03-01), Bolarski et al.
patent: 5277496 (1994-01-01), Mayer et al.
patent: 5282017 (1994-01-01), Kasindorf et al.
patent: 5364186 (1994-11-01), Wang et al.

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