METHOD AND APPARATUS FOR ACOUSTIC DOWNHOLE TELEMETRY AND POWER DELIVERY SYSTEM USING TRANSVERSE OR TORSIONAL WAVES
    1.
    发明公开
    METHOD AND APPARATUS FOR ACOUSTIC DOWNHOLE TELEMETRY AND POWER DELIVERY SYSTEM USING TRANSVERSE OR TORSIONAL WAVES 审中-公开
    方法和设备的声学遥测钻孔及供电系统配合使用或横向扭转波

    公开(公告)号:EP3123681A1

    公开(公告)日:2017-02-01

    申请号:EP15770333.1

    申请日:2015-03-24

    IPC分类号: H04L25/49

    摘要: Methods and apparatus for transmitting power and data along a metal pipe using wideband acoustic waves. Arrangements use shear-horizontal waves, transmitting narrowband signals for power applications and wideband signals for communications having a bandwidth greater than the coherence bandwidth of the acoustic-electric channel. Chirp wave signals, direct sequence spread signals, and on-off keying are used. Acoustic-electric channels include wedges fixed to a pipe or other substrate, transducers fixed to the wedges, and electronics linked to each transducer for sending and receiving power and signals. Matching networks, rectification circuits, and non¬ coherent signal reception methods may be used.

    摘要翻译: 方法和装置用于沿着使用宽带声波的金属管发射功率和数据。 安排使用剪切水平波,发射的窄带信号用于功率应用和宽带信号,用于具有带宽比所述声电信道的相干带宽大的通信。 啁啾波信号,直接序列扩频信号,并且通断键控被使用。 声电信道包括用于发送和接收电力和信号固定到管或其它基材楔子,固定在换能器楔,并且连接到每个换能器的电子设备。 匹配网络,整流电路和非相干信号接收方法可以被使用。