Method and apparatus for confirmation time break (CTB) determination and shotpoint in-situ recording in seismic electronic detonators
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United States of America Patent
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Jun 4, 2019
Grant Date -
May 4, 2017
app pub date -
May 26, 2015
filing date -
Jun 6, 2014
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Abstract
Seismic blasting methods and apparatus are presented in which detonator confirmation time break (CTB) is accurately determined by maintaining an applied voltage across detonator leg wires following initiation of a firing command or signal and sensing one or more electrical parameters such as voltage and/or current, and selectively identifying a CTB representing a time at which the monitored electrical parameter indicates a successful detonation.
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