Automatic force control for a seismic vibrator
    1.
    发明授权
    Automatic force control for a seismic vibrator 失效
    地震振动器的自动力控制

    公开(公告)号:US4692912A

    公开(公告)日:1987-09-08

    申请号:US676718

    申请日:1984-11-30

    IPC分类号: G01V1/04 H04R23/00

    CPC分类号: G01V1/04

    摘要: The present invention provides a method and apparatus for controlling the response of a seismic vibrator during its actuation period. The sweep input signal is modified in response to an average of the force applied to the earth by the vibrator over at least one cycle of the sweep signal. Additionally, this modified drive signal may be further adjusted by selective adjustment of the amplitude of the signal within selected frequency ranges.

    摘要翻译: 本发明提供了一种用于在其致动周期期间控制地震振动器的响应的方法和装置。 响应于振动器在扫描信号的至少一个周期上施加到地球的力的平均值来修改扫描输入信号。 此外,可以通过选择性地调整所选频率范围内的信号的幅度来进一步调整该修改的驱动信号。