Method and apparatus for determining blaster detonation time and first arrival time of seismic wave
    1.
    发明授权
    Method and apparatus for determining blaster detonation time and first arrival time of seismic wave 失效
    确定爆震爆震时间和地震波首次到达时间的方法和装置

    公开(公告)号:US06704657B2

    公开(公告)日:2004-03-09

    申请号:US09860354

    申请日:2001-05-18

    IPC分类号: G01V100

    CPC分类号: G01V1/26 G01V1/04

    摘要: The present invention comprises an apparatus and a method for measuring the first arrival time of seismic waves from detonation in seismic explorations, comprising a or several detectors for measuring seismic waves and converting them into electrical signals and a signal processing means for calculating an average energy of the electrical signals to determine the first arrival time of seismic waves and using a smooth filtering method to compute accurately the first arrival time backwards from the first maximum valve in the average energy curve.

    摘要翻译: 本发明包括一种用于测量来自地震勘探中的爆震的地震波的第一到达时间的装置和方法,包括用于测量地震波并将其转换为电信号的一个或多个检测器,以及用于计算平均能量的信号处理装置 确定地震波的首次到达时间的电信号,并使用平滑滤波方法从平均能量曲线中的第一最大阀门向后精确计算第一到达时间。