Method and a device for analyzing a pyroelectric target

Details Method and a device for analyzing a pyroelectric target Method and a device for analyzing a pyroelectric target

1977-11-21

1980-09-30

Griffin, Robert L.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358222, 250333, 315 10, H04N 533, H01J 3149, H04N 534

Patent

active

042258820

ABSTRACT:
A method and a device for analyzing a pyroelectric target in an evacuated envelope. The target with two opposite faces has a first face disposed towards a zone of the envelope which is transparent to an incident radiation. The second face is orientated towards an electron gun generating device which operates at least one electron beam. A first scanning of the pyroelectric target with a high intensity low resolution electron beam allows a stage of neutralization of the electron charges induced in the target by the incident radiation. The stage of neutralization is to be considered as effecting a storage of the signal recorded on the target. A second scanning of the pyroelectric target with an electron beam of high resolution and low intensity corresponds to a stage of read-out proper of the target. The device is provided, on the one hand, with circuits for the control of the intensity of emission of the electron beam and, on the other hand, with circuits for the control of the voltage applied to the pyroelectric target, positive boosts of potentials being applied to the target during the stage of neutralization and read out proper. A common control circuit controlled by a synchronization signal representing the emission recurrences signals of the incident radiation controls the circuits for the control of the intensity of emission of the electron beam and the circuit for the control of the voltage applied to the target.

REFERENCES:
patent: 3646267 (1972-02-01), Tompsett
patent: 3946232 (1976-03-01), Harmer
patent: 4100574 (1978-07-01), Felix

Affiliated with

Also associated with

Rating

Method and a device for analyzing a pyroelectric target does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and a device for analyzing a pyroelectric target, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and a device for analyzing a pyroelectric target will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1172320