Electricity: motive power systems – Positional servo systems – Multiple mode systems
Patent
1995-04-14
1996-06-25
Ip, Paul
Electricity: motive power systems
Positional servo systems
Multiple mode systems
318625, 318661, 318595, 318602, G05B 1118
Patent
active
055303315
ABSTRACT:
An encoder for indicating a position of a movable member and for generating at least two signals which are offset in phase from one another in accordance with movement of the movable member. The encoder includes a position detector and a presettable counter. The position detector generates a position reference signal indicating at least one reference position during movement of the movable member, and the presettable counter is preset for an absolute position of the encoder during movement of the movable member when the position reference signal is generated. The encoder can be constructed in a small size enabling use in servo systems and in industrial robots.
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Hitachi , Ltd.
Ip Paul
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