Photomultiplier tube assembly

Details Photomultiplier tube assembly Photomultiplier tube assembly

1982-12-14

1985-02-26

Reeves, Robert B.

Classifying, separating, and assorting solids

Sorting special items, and certain methods and apparatus for...

Condition responsive means controls separating means

209588, 250562, B07C 5342

Patent

active

045013667

ABSTRACT:
A photomultiplier tube assembly for use in high speed light testing apparatus for making a series of light measurements in rapid succession. Electronic circuitry is described for removing noise from a light measurement signal generated by the photomultiplier tube. Other circuitry is described for sensing the presence or absence of a measured object in a testing apparatus and for switching the photomultiplier tube on and off in response thereto. Circuitry for generating a signal to reject defective articles subsequent to testing is described.

REFERENCES:
patent: 2798605 (1957-07-01), Richards
patent: 3446972 (1969-05-01), Bentley et al.
patent: 3514209 (1970-05-01), McGhee et al.
patent: 4029958 (1977-06-01), Wright
patent: 4036763 (1977-07-01), Stephenson
patent: 4061925 (1977-12-01), van der Gaag et al.
patent: 4074809 (1978-02-01), McMillin et al.

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