Nozzle Wear Out Detection System
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United States of America Patent
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Issued Date -
Sep 28, 2017
app pub date -
Mar 28, 2016
filing date -
Mar 28, 2016
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Abstract
With the use of low cost microphones mounted near each nozzle, sound signatures of the nozzles may be captured and compared to a baseline calibration measurement corresponding to a substantially new nozzle to determine if the nozzle is worn out. Sound signatures may be periodically captured and compared to the baseline calibration measurement to provide a continuous indicator of wear out for each nozzle. The invention has the advantage of being relatively low cost with ceramic microphones, for example, and with little or no moving parts required.
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