POSITIONAL ENCODING OF ROTATING MEMBERS,申请号GB1984000353-传众专利搜索

POSITIONAL ENCODING OF ROTATING MEMBERS

申请公布号：WO1985002077(A1)

申请号：GB1984000353

申请日期：1984.10.19

申请公布日期：1985.05.09

摘要：<p>An arrangement for generating signals representative of the motion of a rotating member, for example a printer platen (1) driven by an electric motor (8). The position of a shaft is noted by mounting a sectored magnetic disc (9) on it which has alternating north and south poles about its periphery. Two linear Hall effect sensors (11, 12) are mounted half an odd integral number of sectors apart adjacent the disc and connected to circuitry which converts their outputs to a useful signal. The circuitry preferably includes compensation to enable the outputs of the sensors to be matched and to stay matched despite temperature variation.</p>

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