Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1997-07-31
2000-05-02
Hofsass, Jeffery A.
Communications: electrical
Condition responsive indicating system
Specific condition
212276, 340436, 340685, G08B 2100
Patent
active
060577770
ABSTRACT:
A sensor for determining the position of a movable object along a selected axis. The system includes a target positioned at a location aligned with the selected axis. An optical energy emitter is mounted on the movable object and has a beam dispersion greater than two degrees directed at the target. An optical energy receiver is mounted on the movable object and aligned to receive optical energy reflected by the target. The optical energy detector generates a receive signal indicating reception of the optical energy. A time of flight circuit coupled to the emitter and receiver generates a flight time signal indicating the elapsed time from emission of the optical energy to reception of reflected optical energy. A control circuit monitors the flight time signal and outputs a position signal indicating position of the movable object with respect to the target.
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Delohery Patrick J.
Dunne Jeremy G.
Hofsass Jeffery A.
Kubida William J.
Langley Stuart T.
Laser Technology
Tweel , Jr. John
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