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公开(公告)号：US3796866A
公开(公告)日：1974-03-12
申请号：US3796866D
申请日：1972-06-01
Applicant: RCA CORP
Inventor： MC CLELLAN W
CPC classification number: H03G3/3084 , G06K7/10851
Abstract: The count stored in a counter is translated to a gain control voltage for a light sensing device such as a photomultiplier. An electrical signal is produced by the sensing device each time it receives a light signal from a reference source. If the level of the electrical signal differs from a given value by more than a given amount, the count in the counter is changed, to change the gain control voltage in a sense to return the electrical signal level to said given value.
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