Spectrophotometer with statistically balanced light for very hig

Details Spectrophotometer with statistically balanced light for very hig Spectrophotometer with statistically balanced light for very hig

1985-04-29

1987-09-29

LaRoche, Eugene R.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrophotometer

356334, G01J 342

Patent

active

046965700

ABSTRACT:
A flash tube (1) illuminates the inlet slit diaphragm of a monchromator illuminator (3) the outlet slit diaphragm of which is applied to an optical conductor (5) forming a statistically balanced derivation towards a measuring cell (6M) and a reference cell (6R). Quantic photodetectors (7M and 7R) measure respectively the light conveyed by the two cells. The electric signals obtained are amplified and digitalized, and a microcomputer (9) calculates the relation between the measuring signal (M) and the reference signal (R), other things being equal.

REFERENCES:
patent: 3569721 (1971-03-01), Goldberg
patent: 4099872 (1978-07-01), White
patent: 4241998 (1980-12-01), Farkas et al.
patent: 4566792 (1986-01-01), Suzuki
Joliot P., et al, "Une Nouvelle Method Spectrophotometrique Destinee a letude Des Reactions Photosynthetiques", Journal de Chimie Physique 1980, 77, No. 3.
Joliot P. et al, "Electron Transfer Between the Two Photosystems, I. Flash Excitation Under Oxidizing Conditions" Biochimica et Biophysica Acta 765 (1984) 210-219 Elsevier.

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