Capacitive motor sensor

Details Capacitive motor sensor Capacitive motor sensor

2006-02-07

2006-02-07

Bhat, Aditya S. (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system

Orientation or position

Reexamination Certificate

active

06996495

ABSTRACT:
A capacitive motion sensor includes a primary plate including a primary pattern replicated periodically, a secondary plate including a plurality of pattern regions with an insulated region inserted there between, wherein each of the pattern regions has a secondary pattern replicated periodically, a signal source for sending a plate input signal to the primary plate, and a displacement measuring unit for receiving a plurality of plate output signals from the secondary plate to measure a displacement of a moving one of the plates with respect to the other one of the plates.The primary plate is arranged in parallel with the secondary plate in such a manner that the primary pattern is confronted with the secondary pattern and the pattern regions of the secondary plate are arranged in a two-dimensional array.

REFERENCES:
patent: 4958115 (1990-09-01), Miller
patent: 5537109 (1996-07-01), Dowd
patent: 2003/0030570 (2003-02-01), Netzer

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