摘要
介绍了一种超声波围岩裂隙探测仪,可用于探测煤矿井下围岩松动范围及裂隙情况。
An ultrasonic detector for wall rock crack is introduced which is able to detect coal mine underground wall rock looseness range and cracks.
出处
《煤矿自动化》
1997年第1期48-50,共3页
Coal Mine Automation
关键词
矿井
围岩松动区
探测器
超声波
mines wall rock loosness area detectors ultrasonics