Positioning apparatus and movement sensor

Details Positioning apparatus and movement sensor Positioning apparatus and movement sensor

1992-12-07

1994-03-01

Ip, Paul

Electricity: motive power systems

Positional servo systems

Program- or pattern-controlled systems

31856812, 31856822, 250206, 2502061, 356375, 901 47, 395 93, B25J 914

Patent

active

052911128

ABSTRACT:
A movement sensor for a multi-bar positioner includes a first section having a curved corner reflector (76), a second section (70), and a third section with an analog position-sensitive-photodiode (84). The second section (70) has three LEDs (72, 82) and four photodetectors (74). Two of the LEDs (72) and the four photodetectors (74) face a first direction towards the corner reflector (76). The third LED (82) faces a second direction, different than the first direction, towards the position-sensitive-photodiode (84). The second section can be mounted on an arm of the positioner and used in conjunction with the first and third sections to determine movement or position of that arm.

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