Special Issue on Ultra-precision Positioning Technologies. High-precision Positioning Technology on Recent Machine Tools.
نویسندگان
چکیده
منابع مشابه
Trend of Precision Positioning Technology
This paper describes recent precision positioning technology. First, recent precision positioning mechanisms are introduced. Although ball screw mechanisms are widely used in industrial machines, the use of linear motors and the development of planar motors recently increase. Several linear motor mechanisms show the acceleration higher than 10G. The linear motor mechanism developed in my group ...
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INSTRUCTIONS The technology for ultra-precision machining has been developed rapidly and steadily. In recent years, the demand for free form, complex and microscopic cutting has increased as a result of the need for highvalue-added fabrication for items such as high NA glass lenses, micro-grooves, diffractive aspheric lenses and other optical components. The ultra-precision machine for cutting ...
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MODEL REFERENCE CONTROL FOR ULTRA-HIGH PRECISION POSITIONING SYSTEMS by Lan Yu Due to the increasing demands of high-density semiconductors, molecular biology, optoelectronics, and MEMS/NEMS in the past decades, control of ultra-high precision positioning using piezoelectricity has become an important area because of its high displacement resolution, wide bandwidth, low power consumption, and p...
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A positioning system with long stroke and high precision by dualstage control was designed. The focus was on combining the long-stroke travel range of linear stage with high-precision characteristics of piezoelectric actuators. The control method used in the system was dynamic compensation type, where the error from linear stage becomes the input to the piezoelectric actuators. Positioning erro...
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This paper established strict image-object relationship model of ZY-3,and analyzed orbital data and attitude data statistically. It did camera geometric calibration using high-precision artificial target. Internal geometric correction of the original satellite images, eliminating the interior orientation parameters such as non-uniform transition, transition of the integration time and attitude ...
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ژورنال
عنوان ژورنال: Journal of the Japan Society for Precision Engineering
سال: 1991
ISSN: 1882-675X,0912-0289
DOI: 10.2493/jjspe.57.1717