Magnetostrictive wavelet method for measuring pulse propagation time
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United States of America Patent
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Issued Date -
May 26, 2005
app pub date -
Oct 14, 2004
filing date -
Oct 14, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A magnetostrictive sensor system and a method of measuring a magnetostrictive sensor pulse is provided. The measurement system and method includes providing a digital buffer circuit connected with an analog to digital converter to an analog waveform detector for receiving a magnetostrictive pulse waveform from a magnetostrictive waveguide. A template waveform is provided, and a returned magnetostrictive pulse waveform is recieved into the digital buffer circuit. The received pulse waveform is compared with the template waveform to determine an arrival time of the returned magnetostrictive pulse waveform. Providing the template waveform includes providing a synthesized return waveform generated to simulate a characteristic magnetostrictive return pulse waveform of the magnetostrictive system. The magnetostrictive sensor system includes a magnetostrictive waveguide, an analog waveform detector for receiving a magnetostrictive pulse waveform from the magnetostrictive waveguide, a comparing correlating processor with a template waveform for comparing the received magnetostrictive pulse waveform with the template waveform to determine an arrival time of the returned magnetostrictive pulse waveform.
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