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Journal of Intelligent Material Systems and Structures
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18/11/1137    most recent
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Application of Active Micro-vibration Control System using a Giant Magnetostrictive Actuator

Yoshiya Nakamura

Technical Research Institute, Fujita Corporation, 2025-1 Ono, Atsugi, Kanagawa, Japan, ynakamura{at}fujita.co.jp

Masanao Nakayama

Technical Research Institute, Fujita Corporation, 2025-1 Ono, Atsugi, Kanagawa, Japan

Masayuki Kura

Fujita Corporation, 4-25-2 Sendagaya, Shibuya-ku, Tokyo, Japan

Masashi Yasuda

Tokkyokiki Corporation, 10 Minamihatsushima-cho, Amagasaki, Hyogo, Japan

Takafumi Fujita

Institute of Industrial Science, University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, Japan

In various leading-edge technology areas, such as semiconductor manufacturing, the requirement for micro-vibration control is increasing. The authors have developed an active six-degrees-of-freedom (6-DOF) micro-vibration control system using an off the shelf, giant magnetostrictive (GMS) actuator. The efficiency of the active micro-vibration control system using a GMS actuator has been verified through several control experiments. However, the active micro-vibration control approach has not previously been applied to actual precision measuring equipment. Therefore, the control performance of such systems has not been verified on a practical application. In this study, an active 6-DOF micro-vibration control system using GMS actuators is developed and applied to buildings in order to provide micro-level-vibration-free space for a focused ion beam (FIB). The outline of the system, the design of the control system, and the results of experimental verification are described. In this application of the active micro-vibration control system, the design of the active micro-vibration control system is carried out taking several factors into consideration. Vibration measurements made after adjusting the micro-vibration control system confirm that the table satisfies the specified requirement and that a clear FIB image is obtained under high-magnification observation.

Key Words: active control • micro-vibration • giant magnetostrictive actuator • precision machine.

This version was published on November 1, 2007

Journal of Intelligent Material Systems and Structures, Vol. 18, No. 11, 1137-1148 (2007)
DOI: 10.1177/1045389X06072365
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