CONTROL SYSTEMS IMPROVEMENTS IN A PRECISION COORDINATE MEASURING MACHINE.

被引：0
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作者：
Douglass, S.S.
Babelay Jr., E.F.
Igou, R.E.
Woodward, L.M.
Green, W.L.
机构：
来源：
Journal of Environmental Science and Health, Part B: Pesticides, Food Contaminants, and Agricultural Wastes | 1980年 / 1卷
关键词：
Control systems; Numerical;
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摘要：
A conventional, manually driven Moore No. 3 coordinate measuring machine is being upgraded to provide a continuous-path numerical control capability and simultaneously to serve as a vehicle for testing new machine slide control concepts. Besides new lead screw drive motors, an NC machine control unit and closed-loop servo system, the machine has also been equipped with vibration isolation, air-bearing slideways, and laser interferometric position feedback. The present conventional slide servo system will be replaced with a digital servo system wherein various feedback and compensation techniques can be realized through the use of a high-speed dedicated digital processor. A description is given of the improvements to date with emphasis on identification and compensation of the slide control systems.
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