Wheel must be used with safety guards. The actual rotational axis of the wheel and its axis of rotation through the center of mass deviation from parallel state called static unbalance wheel. This is usually due wheel uneven density, both ends of the hole and the surface is not parallel or coaxial cylindrical deviation has caused.
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2013年9月22日星期日
Precision instruments and parts manufacturing, new materials, manufacturing technology
With the rapid development of science and technology, surface topography and contour measurement is increasingly becoming an important measurement object surveying, surface measurement technology has become an important scientific measurement technology development branch of polymer materials science, micro and nano electronics science, micro-electromechanical systems science, film science and life sciences research, and precision instruments and parts manufacturing, new materials
cubic boron nitride , chip manufacturing process quality assessment testing and processing and other industries have a wide range of important applications. In recent years, combined with microelectronics technology, computing technology, optical technology, sensor technology and information processing
synthetic diamond technology, based on various principles of surface topography and contour measuring instruments have come out, the measurement range of small to sub-nanometer, high to the millimeter level, for scientific research and industrial
abrasive grinding of advanced observation and analysis tool. In actual measurements, the use of atomic force microscopy (Atomic Force Microscope, AFM) to obtain three-dimensional surface topography material measurement techniques and high resolution due to the longitudinal surface of the nanoscale measurements more applications fields, but there are easily damaged probe scanning range is small, the scanning speed is slow and other shortcomings.
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