Electricity: motive power systems – Positional servo systems – With particular 'error-detecting' means
Patent
1990-02-12
1992-03-03
Ip, Paul
Electricity: motive power systems
Positional servo systems
With particular 'error-detecting' means
318602, 318625, 318561, G05B 106
Patent
active
050936107
ABSTRACT:
An apparatus for measurement of absolute position of a movable machine member is provided. The machine member is moved by a motor and reduction device producing rotation of the machine member in proportion to relative rotation of the motor rotor and motor stator. Two angular position measuring devices provide output signals representing relative positions related to the machine member position and differentiated one from another.
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ABB Robotics Inc.
Gregg John W.
Ip Paul
Lerner Paul J.
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