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    Aerial drop telemetering sensor
    2.
    发明授权
    Aerial drop telemetering sensor 失效
    空降电报传感器

    公开(公告)号：US3555502A

    公开(公告)日：1971-01-12

    申请号：US3555502D

    申请日：1969-02-12

    Applicant: TEXAS INSTRUMENTS INC

    Inventor： DAVIS PAUL D JR ,  NEITZEL EDWIN B

    IPC: G01V1/104 ,  G01V1/147 ,  G01V1/22 ,  G01V1/12 ,  G01V1/14 ,  G01V1/16

    CPC classification number: G01V1/104 ,  G01V1/147 ,  G01V1/223

    Abstract: PRELIMINARY SEISMIC EXPLORATION AND EXPLORATION IN REMOTE ACCESS AREAS MAY BE CARRIED OUT WITH A LOW-COST, EXPENDABLE SEISMIC TELEMETERING UNIT CONTAINED IN A TWOPART AIR-DROPPABLE PROBE THAT INCLUDES AN UPPER SECTION (LIGHT MASS) DESIGNED TO REMAIN AT THE SURFACE AND A LOWER SECTION (HEAVE MASS) THAT IS BURIED TO A DEPTH DEPENDING UPON THE SOIL CONDITIONS. AS THE TWO-PART PROBE EMBEDS ITSELF IN AN EARTH-LIKE SURFACE, IT GENERATES UNDERGROUND SEISMIC WAVES, THEREBY ACTING AS ITS OWN SOURCE OF SEISMIC ENERGY. MANY PROBES MAY BE DROPPED IN AN EXPLORATION AREA IN ANY DESIRED SPREAD TO PRODUCE THE DESIRED SEISMIC DATA. THE IMPACT OF EACH PROBE GENERATES A NEW SET OF ENERGY WAVES THAT WILL BE PICKED UP BY ALL EARLIER DROPPED PROBES. BY APPROPRIATE CODING OF THE TRANSMITTED ENERGY,

    AN AIRBORNE COMPUTER WILL SEGREGATE THE SIGNALS FROM EACH PROBE TO PRODUCE SEISMIC DATA THAT MAY BE READ IN THE USUAL MANER. SEISMIC WAVES ARE DETECTED BY A SEISMIC SENSOR IN THE LOWER SECTION (SENSOR SECTION) WHICH GENERATES ELECTRICAL SINALS PROPORTIONAL TO TE TRAVELING WAVES. THESE ELECTRICAL SIGNALS ARE AMPLIFIED BY ONE OF MANY DIFFERENT AMPLIFICATION SYSTEMS, DEPENDING OF THE APPLICATION, AND CONVERTED INTO RADIO FREQUENCY SIGNALS IN A RADIO TRANSMITTER. AN ANTENNA IS MOUNTED TO EXTEND ABOVE THE EARTH''S SURFACE AS A COMMUNICATION LINK BETEEN THE RADIO TRANSMITTER AND A RADIO RECEIVER OPERATING AT A REMOTE LOCATION.

    System for changing seismic detection array lengths
    5.
    发明授权
    System for changing seismic detection array lengths 失效
    改变地震检测阵列长度的系统

    公开(公告)号：US3887897A

    公开(公告)日：1975-06-03

    申请号：US38181273

    申请日：1973-07-23

    Applicant: TEXAS INSTRUMENTS INC

    Inventor： NEITZEL EDWIN B ,  GONTAREK MARVIN D

    IPC: G01V1/20 ,  G01V1/16

    CPC classification number: G01V1/20

    Abstract: A system is disclosed wherein selections are available at a marine seismic survey boat which allows an operator to change the effective array length in integer multiples of the length of a unit array with array centers maintained constant while simultaneously introducing weighting which maintains constant the relative signal levels between channels.

    Abstract translation: 公开了一种系统，其中在海洋地震勘测船上可以进行选择，其允许操作员以阵列中心保持恒定的单位阵列的长度的整数倍的方式改变有效阵列长度，同时引入加权，其维持恒定的相对信号电平 通道之间

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