公开(公告)号：US4280201A

公开(公告)日：1981-07-21

申请号：US55554

申请日：1979-07-09

申请人： Carl F. Mart ,  Douglas B. Waits

发明人： Carl F. Mart ,  Douglas B. Waits

IPC分类号： G01V1/20 ,  G01V1/22

CPC分类号： G01V1/20

摘要： A seismic prospecting roll along switching system using a relatively small number of switches to provide roll along prospecting while also providing variable gapping with minimum loss of active channels. In a simple form two sets of switches are provided with each set having one switch provided for each geophone input and with switch outputs connected in pairs, appropriately selected, to the inputs of signal processing channels. The two sets of switches are connected to the processing channels in a skewed or staggered manner with the amount of skew corresponding to a selectable gap. A controller is provided for electronically closing the appropriate switches from each set in accordance with the desired gap. Additional switch sets may be employed to provide additional selectable gaps while maintaining complete utilization of processing channels.

摘要翻译： 沿着开关系统使用相对较少数量的开关的地震勘探辊，以沿着勘探提供滚动，同时还提供可变间隙，最小的活动通道损失。 以简单的形式，提供了两组开关，每组具有为每个地震检波器输入提供的一个开关和适当选择的成对连接到信号处理通道的输入端的开关输出。 两组开关以倾斜或交错的方式连接到处理通道，其中对应于可选间隙的偏斜量。 提供控制器，用于根据期望的间隙从每个组电子地闭合适当的开关。 可以采用附加的开关组来提供额外的可选择的间隙，同时保持处理通道的完全利用。

公开(公告)号：US4218767A

公开(公告)日：1980-08-19

申请号：US10680

申请日：1979-02-09

申请人： Wesley L. Joosten ,  Carl F. Mart ,  John W. Miller ,  Otice E. Brown

发明人： Wesley L. Joosten ,  Carl F. Mart ,  John W. Miller ,  Otice E. Brown

IPC分类号： G01V1/22 ,  G01V1/16

CPC分类号： G01V1/22

摘要： A seismic communications system including a central control and recording station and a plurality of remote data acquisition stations, the stations being approximately in line and connected to each other by one or two transmission lines. One line is all that is necessary if the central station is at one end of the line of stations; however, if the central station has some acquisition stations upstream and some downstream therefrom, two lines are required. Coded central strobe bursts put on a transmission line at the central station successively cause insertion of digital seismic data from successively more remote acquisition stations, the data being time slotted after each central station strobe burst so that reverse transmissions do not interfere with subsequent signal propagations emanating from the central station. Twin lead is preferably used for the transmission lines. Power shut down, except for a pilot receiver, is accomplished at each acquisition station between recording cycles.

摘要翻译： 一种包括中央控制和记录站和多个远程数据采集站的地震通信系统，所述站大致在一条直线上并且通过一条或两条传输线彼此连接。 一条线是所有必要的，如果中心站在车站的一端; 然而，如果中心站有一些上游和一些下游的采集站，则需要两条线路。 在中央站放置在传输线上的编码的中央选通脉冲串连续地从连续更远的采集站插入数字地震数据，数据在每个中心站选通脉冲串之后被时隙化，使得反向传输不会干扰随后的信号传播 从中央车站。 双引线优选用于传输线。 除了导频接收机之外，在记录周期之间的每个采集站完成电源关闭。