Radiation-emissive focussing system with integration of the sign

Details Radiation-emissive focussing system with integration of the sign Radiation-emissive focussing system with integration of the sign

1979-04-09

1981-05-19

Hix, L. T.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

354 25, 354 31, 250204, G03B 1318, G01J 136

Patent

active

042681375

ABSTRACT:
Pulses of radiation are emitted from the camera to the subject, reflected back to the camera, and incident upon two detectors. The successive pulses produced by the two detectors are applied to respective integrators which trip respective threshold circuits when and if their integral signals reach the threshold value. This inherently reduces detector and other noise present in the processing circuitry. A tolerance-range counter ascertains whether or not, after one threshold circuit is tripped, the other becomes tripped within a predetermined time interval.

REFERENCES:
patent: 3652160 (1972-03-01), Odone et al.
patent: 3813679 (1974-05-01), Hasegawa et al.
patent: 3836919 (1974-09-01), Matsumoto et al.
patent: 3988747 (1976-10-01), Lermann et al.
patent: 4178098 (1974-12-01), Asano et al.

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