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JRM Vol.5 No.4 pp. 338-343
doi: 10.20965/jrm.1993.p0338
(1993)

Paper:

Study on Optical Servo System (Modelling for Photovoltaic Effect in PLZT Element)

Takeshi Nakada*, Cao Dong-Hui*, Makoto Kimura**
and Hsien Chi-Yu**

*Mechanical Engineering Laboratory, 1-2 Namiki, Tsukuba, Ibaraki 305, Japan

**Tokai University, 1117 Kita-kaname, Kanagawa 259-12, Japan

Received:
February 23, 1993
Accepted:
April 16, 1993
Published:
August 20, 1993
Keywords:
Optical servo system, Optical actuator, Photovoltaic effect, PLZT element, Modelling
Abstract

This paper deals with the design of an electrical model for the photovoltaic effect in a PLZT element to estimate, in advance, the performance of an optical actuator consisting of PLZT elements. The results of the basic experiment on the photovoltaic effect are shown, and they indicate that a parallel circuit including a current source, a resistance and a capacitance may be applicable to an electrical model for the photovoltaic effect, under the consideration of the lumped system. Then, the step response of the photovoltage is obtained theoretically according to the electrical model proposed. Since the theoretical results agree well with the results of the basic experiment, the electrical model proposed can be considered to be valid for practical use. Important aspects of the design of an exact model are also pointed out.

Cite this article as:
T. Nakada, C. Dong-Hui, and M. Chi-Yu, “Study on Optical Servo System (Modelling for Photovoltaic Effect in PLZT Element),” J. Robot. Mechatron., Vol.5, No.4, pp. 338-343, 1993.
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Last updated on Aug. 21, 2019