Apparatus for monitoring the surface of the charge of a shaft fu

Details Apparatus for monitoring the surface of the charge of a shaft fu Apparatus for monitoring the surface of the charge of a shaft fu

1979-12-06

1982-03-30

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250236, 350 65, G01N 2186

Patent

active

043226272

ABSTRACT:
A telemetric optical-radiation laser transmitter 5 outside an aperture 2 sends a beam to a point 14 scanned over the charge surface 1, via a rotating assembly 7 of deflectors, one deflector 11 oscillating with a periodicity related to the rotation of the assembly. A telemetric receiver 19, sensitive to the radiation from the transmitter 5 in a selected wavelength range, receives radiation re-transmitted from the point 14 through an aperture 3. A thermometric receiver 6 receives thermal radiation from the point 14 along a path coinciding with the path of the transmitted optical radiation.

REFERENCES:
patent: 4122525 (1978-10-01), Eaton

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