Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1994-03-08
1995-06-13
Dougherty, Thomas M.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
H02N 204
Patent
active
054245974
ABSTRACT:
An adjusting device with a piezo drive is provided with two piezo translators which are brought into functional connection with a driven element by means of a spring element. A transmission of motion occurs corresponding to the change in length of the piezo translators, while resetting of the piezo translators occurs by removing the functional connection through their associated control links. Because of the continuous biasing of the spring element, a secure engagement of the driven element is guaranteed. As a result, the high precision requirements on the control links and their positioning displacements, which would otherwise be necessary for engagement, can be displaced with.
REFERENCES:
patent: 4019073 (1977-04-01), Vishnevsky et al.
patent: 4613782 (1986-09-01), Mori et al.
patent: 5036245 (1991-07-01), Ohnishi et al.
patent: 5039899 (1991-08-01), Yamaguchi
patent: 5216313 (1993-06-01), Ohnishi et al.
Forschungsberichte Aus Fein-Und Mikrotechhnik, Institut fur Zeitmessechnik, Fein-und Mikrotechnik der Universitat Stuttgart, Hahn-Schickard-Institut fur Feinwerk-und Zeitmesstechnik Stuttgart, pp. 61, 75 (1991).
Gloss Rainer
Marth Harry
Dougherty Thomas M.
Physik Instrumente (P.I.) GmbH & Co.
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