Phase-locked timing system for a spectrophotometer

Details Phase-locked timing system for a spectrophotometer Phase-locked timing system for a spectrophotometer

1984-09-14

1987-02-17

Gruber, Felix D.

Boots, shoes, and leggings

356323, 364525, G01J 3433, G01R 2300

Patent

active

046444858

ABSTRACT:
A timing system for a spectrophotometer having a line driven chopper including a rotating disc with alternate open and opaque segments, index apertures in the disc spaced at invariant angular relationship to one of the open segments for providing indexing pulses having fixed time relationship to the light segments, and a programmable microcomputer assembly for generating a string of timing pulses for timing spectrophotometer operations and adjusting the rate of the timing pulses to provide a fixed number between indexing pulses in fixed phase relationship thereto.

REFERENCES:
patent: 4305663 (1981-12-01), Perkins et al.
patent: 4527248 (1985-04-01), Takase et al.

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