Photoelectric detector

Details Photoelectric detector Photoelectric detector

1980-06-26

1982-06-08

Corbin, John K.

Optics: measuring and testing

For light transmission or absorption

Of fluent material

356438, G01N 2100

Patent

active

043337244

ABSTRACT:
In a photoelectric detector having a light transmitting section and a light receiving section disposed remote from each other, intermittent illumination of a light source of the light transmitting section is detected and processed by the light receiving section in synchronism with the intermittent illumination by way of power lines interconnecting the light transmitting and light receiving sections. To this end, a circuit for intermittently supplying a power source to the light transmitting section is provided in the light transmitting section or the light receiving section and the intermittent power supply is utilized as a synchronizing signal to intermittently illuminate the light source and to allow the light receiving section to transmit and process a received light signal or a signal based thereon in synchronism with the intermittent illumination.

REFERENCES:
patent: 3316410 (1967-04-01), Meili et al.
patent: 3973852 (1976-08-01), Moore et al.
patent: 3995960 (1976-12-01), Fletcher et al.
patent: 4200399 (1980-04-01), Kimble et al.

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