Piezoelectrically controlled drive system for generating...

Details Piezoelectrically controlled drive system for generating... Piezoelectrically controlled drive system for generating...

H - Electricity

01

L

310/2, 349/49, 1

H01L 41/00 (2006.01) B41J 2/045 (2006.01) B41J 2/295 (2006.01) H04R 17/00 (2006.01)

Patent

CA 1113534

Abstract of the Disclosure A drive system, especially for a printing needle of a matrix printer or a cannula system for generating ink drops in an ink jet printer, consists of a piezo crystal structure fixed to the base of an exponentially shaped horn the tip of which is coupled to the printing needle or cannula system. Controlled strokes and/or high impact velocities of the horn tip are achieved by applying rectangular or stepped pulses or pulse sequences of empirically determined duration to the piezo crystal structure. A plurality of drive systems can be arranged on a common piezo crystal structure in a column or matrix to drive a plurality of printing needles.

314614

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