SELF-TESTING FUNCTIONAL CHARACTERISTICS OF ULTRASONIC SENSORS
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United States of America Patent
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Issued Date -
Oct 31, 2013
app pub date -
Apr 26, 2012
filing date -
Apr 26, 2012
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Functional characteristics of an ultrasonic element are self-tested by, in various embodiments, causing the ultrasonic element to emit an ultrasonic signal; detecting the emitted ultrasonic signal substantially simultaneously with its emission; and verifying proper operation of the ultrasonic element based on comparison between a detected ultrasonic signal parameter and a reference parameter.
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