Admittance sensor for mass detection
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United States of America Patent
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-
N/A
Issued Date -
Jul 3, 2003
app pub date -
Dec 31, 2001
filing date -
Dec 31, 2001
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An admittance sensor includes a voltage divider network having a probe and an associated variable virtual admittance. The voltage divider network is operable to receive pulses and transmit attenuated pulses. Each attenuated pulse has a respective attenuated pulse magnitude based, at least in part, upon a magnitude of the virtual admittance at approximately the respective time at which the attenuated pulses are transmitted. The admittance sensor also includes a level detector operable to receive the attenuated pulses from the voltage divider network and operable to generate output pulses corresponding to each of the attenuated pulses received which exceed a predetermined attenuated pulse magnitude. The admittance sensor also includes a pulse detector operable to receive the output pulses and generate a signal if at least one of the output pulses is not received for a predetermined period of time.
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