VARIABLE GAIN AMPLIFIER FOR HYDRAULIC SERVO-CONTROL SYSTEMS

An hydraulic servo-control system has a variable gain amplifier which generates a control force large enough to overcome static forces resisting movement of a machine slide and minimize the effect of forces which cause compression of the hydraulic fluid. The variable gain amplifier then operates at...

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Bibliographische Detailangaben
1. Verfasser:	EVANS W,US
Format:	Patent
Sprache:	eng
Schlagworte:	COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING MACHINE TOOLS MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS TRANSPORTING
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Beschreibung
Zusammenfassung:	An hydraulic servo-control system has a variable gain amplifier which generates a control force large enough to overcome static forces resisting movement of a machine slide and minimize the effect of forces which cause compression of the hydraulic fluid. The variable gain amplifier then operates at a lower gain level once the slide is in a kinematic state.