Digital piezoelectric actuator

Details Digital piezoelectric actuator Digital piezoelectric actuator

1980-11-06

1983-05-17

Shoop, William M.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310328, H01L 4100

Patent

active

043842305

ABSTRACT:
A linear extension piezoelectric actuator comprises a displacement generator having a plurality of discrete groups of piezoelectric material segments disposed coaxially along the extension axis of the actuator, each group being energized separately by voltage excitation signals from an external source to provide a corresponding one of a plurality of extension increments which in summation provide the total range of extension along the extension axis.

REFERENCES:
patent: 3315103 (1967-04-01), Duff et al.
patent: 3551764 (1970-12-01), Evans
patent: 3649856 (1972-03-01), O'Neill
patent: 3947708 (1976-03-01), Fulenwider

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