Capacitive probe assembly with flex circuit
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United States of America Patent
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Aug 16, 2005
Grant Date -
Mar 3, 2005
app pub date -
Aug 29, 2003
filing date -
Aug 29, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A novel capacitive sensor assembly that utilizes a flex circuit for amplification of capacitively sensed signals and for separating the power, ground, and measurement signals is presented. The use of a flex circuit in the capacitive probe assembly allows implementation of multiple capacitive sensors for respectively capacitively coupling multiple signals from respective multiple test points of a circuit under test. The invention integrates the sensor plate, amplifier, and return wiring for each capacitive sensor all onto one flex circuit.
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