Dual-sensor noise-reduction system for an underwater cable
    11.
    发明授权
    Dual-sensor noise-reduction system for an underwater cable 有权
    水下电缆双传感器降噪系统

    公开(公告)号:US08923091B2

    公开(公告)日:2014-12-30

    申请号:US13009287

    申请日:2011-01-19

    申请人: Dale J. Lambert

    发明人: Dale J. Lambert

    摘要: A system and a method for rejecting noise in an underwater sensor cable, such as a towed streamer or an ocean-bottom cable. An adaptive hydrodynamic model of the cable produces an estimated sensor signal from a raw sensor signal from a particle-motion sensor, such as an accelerometer. The estimated sensor signal represents an estimate of the response of the underwater cable to cable motion absent seismic events. A noise-reduced response to particle motion alone is produced by subtracting the estimated sensor signal from the raw sensor signal to reject cable motion and other noise effects in the raw sensor signal. A seismic event detector uses a hydrophone signal from an acceleration-canceling hydrophone to disable the adapting of the hydrodynamic model during seismic events. The hydrophone signal is combined with the response to particle motion by PZ summation to produce a deghosted seismic response signal.

    摘要翻译: 一种用于在水下传感器电缆(例如拖缆拖缆或海底电缆)中排除噪声的系统和方法。 电缆的自适应流体动力学模型从诸如加速度计的粒子运动传感器的原始传感器信号产生估计的传感器信号。 估计的传感器信号表示水下电缆对没有地震事件的电缆运动的响应的估计。 通过从原始传感器信号中减去估计的传感器信号来抑制原始传感器信号中的电缆运动和其他噪声影响,产生对粒子运动的噪声降低的响应。 地震事件检测器使用来自加速消除水听器的水听器信号来禁止在地震事件期间适应流体动力学模型。 水听器信号与通过PZ求和的颗粒运动的响应相结合,以产生消反主要的地震响应信号。

    Serviceable measuring device
    13.
    发明授权
    Serviceable measuring device 失效
    可维修的测量装置

    公开(公告)号:US5962795A

    公开(公告)日:1999-10-05

    申请号:US35669

    申请日:1998-03-05

    申请人: Dale J. Lambert

    发明人: Dale J. Lambert

    CPC分类号: G01N11/10 G01N33/34

    摘要: A measuring device which maximizes the surface area of a blade transducer, which is swingably coupled to a probe member, and utilizes the force of the medium, such as a slurry, flowing in an in-service pipeline to swingably align the blade transducer in a desired measuring position. The swingable coupling of the blade transducer to the probe member provides for the retraction from and insertion into the medium flowing in the in-service pipeline for repairs, replacement, or sanitization or other maintenance or servicing of such blade transducer, without shutting down the pipeline and related processes, without compromising the integrity of or disturbing the connection (sealed, flanged, welded or otherwise) between the measuring device and the transducer port in such pipeline and significantly minimizing the environmental exposure of the medium. Moreover, the retractability feature of the swingable blade transducer enables other components of the measuring device to be replaced, repaired and sanitized or otherwise maintained or serviced, as desired.

    摘要翻译: 一种测量装置,其使刀片换能器的表面面积最大化,所述刀片换能器可摆动地联接到探针构件,并且利用在使用中管道中流动的介质(例如浆料)的力以使刀片换能器在 所需的测量位置。 刀片换能器与探针构件的可摆动联接提供了在使用中管道中的流入和插入介质中进行维修,更换或消毒或其他维护或维修,而不关闭管道 和相关过程,而不损害在这种管道中的测量装置和换能器端口之间的连接(密封,法兰,焊接或其他)的完整性或干扰,并且显着地最小化介质的环境暴露。 此外,可摆动刀片换能器的可缩回特征使得测量装置的其他部件可根据需要更换,修理和消毒,或以其他方式维护或维修。