Impact position transducer for ink jet

Details Impact position transducer for ink jet Impact position transducer for ink jet

1976-06-14

1978-01-03

Miller, Jr., George H.

Recorders

Record receiver deforming

310366, G01D 1518, H01V 700

Patent

active

040670198

ABSTRACT:
A sensing arrangement for accurately detecting the position of ink jet or similar drop impact thereon. The drop impact occurs on the surface of a poled piezoelectric between two parallel conductors. The charge generated by drop impact is localized, the degree inversely dependent upon the piezoelectric thickness, so that the signal generated in a conductor is dependent upon the distance of the impact location from the conductor. Thus, using transimpedance amplifiers, the difference of the output signals indicates the impact position.

REFERENCES:
patent: 3373437 (1968-03-01), Sweet et al.
patent: 3465350 (1969-09-01), Keur et al.
patent: 3790709 (1974-02-01), Heywang
patent: 3852768 (1974-12-01), Carmichael et al.
patent: 3886564 (1975-05-01), Naylor III et al.
patent: 3898673 (1975-08-01), Haskell

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