Optics: measuring and testing – Optical pyrometers
Patent
1991-12-10
1992-12-29
McGraw, Vincent P.
Optics: measuring and testing
Optical pyrometers
2502086, 250349, G01J 524
Patent
active
051755920
ABSTRACT:
A radiation pyrometer has four rectangular photodiodes mounted in an orthogonal array. Radiation from a hot body is focussed as a circular image centrally of the array. The outputs of diagonally opposite photodiodes are connected together to form two identical output channels.
REFERENCES:
patent: 4627041 (1986-12-01), Uemura
McGraw Vincent P.
Smiths Industries Public Limited Company
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