METHOD AND APPARATUS TO MEASURE BOREHOLE PRESSURE DURING BLASTING
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United States of America Patent
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Issued Date -
Aug 15, 2013
app pub date -
Feb 11, 2013
filing date -
Feb 10, 2012
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Abandoned
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Abstract
Pressure sensors and techniques are presented in which one or more piezoelectric discs are housed in a holder structure with a hole allowing exposure of the piezoelectric disc(s) to ambient pressure within a borehole, with wiring leads passing through the holder structure for conveying an electrical signal from the piezoelectric device to an external interface circuit or for conveying an electrical signal from an internal interface circuit to an external data acquisition system.
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