Excavation status monitoring system for tunneling machine
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United States of America Patent
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Apr 3, 2018
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N/A
app pub date -
Nov 12, 2013
filing date -
Dec 27, 2012
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Abstract
An excavation status monitoring system for a tunneling machine that includes a detecting portion mounted on a cutter head of the tunneling machine, including an accelerometer that detects a vibration or an acoustic sensor that detects a sound wave and a sound output portion that outputs a signal detected by the detecting portion as sound.
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