Apparatus for recording in a digital form signals detected during
magneto-telluric prospection
    31.
    发明授权
    Apparatus for recording in a digital form signals detected during magneto-telluric prospection 失效
    用于以数字形式记录在磁碲检测期间检测到的信号的装置

    公开(公告)号:US3986207A

    公开(公告)日:1976-10-12

    申请号:US579021

    申请日:1975-05-19

    CPC分类号: G01D9/28 G01K11/006 G01V3/36

    摘要: A recording apparatus for recording digital signals corresponding to components of telluric and magnetic fields. The apparatus comprises an analog input stage, a low pass filter stage, an analog output stage, an analog multiplexer and an analog-to-digital converter and recording system for recording the digital signals. A gain computing module is provided as well as a recording selector to achieve variable amplification gains in the analog input and output stages as well as variable frequency bands in the low pass filtering stage to accommodate different frequency input signals for low frequency recording, intermediate frequency recording and high frequency recording.

    摘要翻译: 一种用于记录对应于碲和磁场分量的数字信号的记录装置。 该装置包括模拟输入级,低通滤波级,模拟输出级,模拟多路复用器和用于记录数字信号的模数转换器和记录系统。 提供增益计算模块以及记录选择器,以实现模拟输入和输出级中的可变放大增益以及低通滤波级中的可变频带,以适应用于低频记录,中频记录的不同频率输入信号 和高频录音。

    In-wall feature detection device of mutual capacitive technology

    公开(公告)号:US11640009B2

    公开(公告)日:2023-05-02

    申请号:US17458005

    申请日:2021-08-26

    申请人: Mu-Tsan Yu

    发明人: Mu-Tsan Yu

    摘要: An in-wall feature detection device of mutual capacitive technology comprises a housing, a detection baseplate, and at least one capacitive sensing baseplate. The detection baseplate is disposed in the housing and has a central processing module and a capacitance value conversion module and is electrically connected to at least one display module. The capacitive sensing baseplate is provided with driving modules and receiving modules, the driving and receiving modules are arranged in a crisscross manner and electrically connected to the capacitance value conversion module. The in-wall feature detection device is capable of using an electric field change between the driving and receiving modules to determine whether there is a blocking object in a wall, and further generating a corresponding light signal through the central processing module to display a shape of the blocking object. Thereby determining a position and the shape of the blocking object during construction.

    IN-WALL FEATURE DETECTION DEVICE OF MUTUAL CAPACITIVE TECHNOLOGY

    公开(公告)号:US20230069495A1

    公开(公告)日:2023-03-02

    申请号:US17458005

    申请日:2021-08-26

    申请人: MU-TSAN YU

    发明人: MU-TSAN YU

    IPC分类号: G01V3/08 G01V3/36

    摘要: An in-wall feature detection device of mutual capacitive technology comprises a housing, a detection baseplate, and at least one capacitive sensing baseplate. The detection baseplate is disposed in the housing and has a central processing module and a capacitance value conversion module and is electrically connected to at least one display module. The capacitive sensing baseplate is provided with driving modules and receiving modules, the driving and receiving modules are arranged in a crisscross manner and electrically connected to the capacitance value conversion module. The in-wall feature detection device is capable of using an electric field change between the driving and receiving modules to determine whether there is a blocking object in a wall, and further generating a corresponding light signal through the central processing module to display a shape of the blocking object. Thereby determining a position and the shape of the blocking object during construction.

    Using an adjusted drive pulse in formation evaluation

    公开(公告)号:US10955581B2

    公开(公告)日:2021-03-23

    申请号:US15755473

    申请日:2015-09-17

    摘要: A method of evaluating a subterranean formation includes conveying a tool along a borehole. The tool includes a transmitter that transmits a drive pulse and a receiver that receives at least one formation response to the drive pulse. The method further includes calculating a signal-to-noise ratio of the at least one formation response and comparing the signal-to-noise ratio to a programmable threshold. The method further includes determining, based on the comparing, an adjusted drive pulse to transmit and transmitting the adjusted drive pulse. The method further includes and receiving at least one formation response to the adjusted drive pulse and deriving formation data from the at least one formation response to the adjusted drive pulse. The method further includes displaying a representation of the formation based on the formation data.

    SYSTEM AND METHODS FOR UPDATING A REFERENCE TIME FROM A DECAYING ROTATIONAL PERIOD OF A PULSAR

    公开(公告)号:US20200088754A1

    公开(公告)日:2020-03-19

    申请号:US16131573

    申请日:2018-09-14

    摘要: Disclosed is a system for updating a reference time from a decaying rotational period of a pulsar. The system can include: a database (DB) configured to store: coordinates for a pulsar; a recorded rate of rotation (RROR) for the pulsar; a rotational rate of decay (RROD) function for the pulsar; and a recorded reference time for the pulsar. A sensor can be configured to collect electromagnetic pulsar radiation from the pulsar and generate sensor data. A signal processor module can be configured to receive the sensor data, generate an observed rate of rotation (OROR) signal profile, generate a current rate of rotation (CROR) for the pulsar from the OROR signal profile, and update the RROR from the CROR. A time processor module can be configured to receive the RROD function and the CROR, and to solve the RROD function to output a reference time of the pulsar.

    AIRBORNE ELECTROMAGNETIC SURVEY SYSTEM WITH MULTIPLE TRANSMITTER ARRANGEMENTS

    公开(公告)号:US20190212462A1

    公开(公告)日:2019-07-11

    申请号:US16216994

    申请日:2018-12-11

    发明人: Kurt I. SORENSEN

    IPC分类号: G01V3/165 G01V3/36

    CPC分类号: G01V3/165 G01V3/36

    摘要: An airborne electromagnetic survey system includes: a transmitter arrangement comprising at least one current source configured to connect with a transmitter coil arrangement, and a switch arrangement between the at least one current source and the transmitter coil arrangement, the switch arrangement configured to (1) connect the at least one current source with the transmitter coil arrangement to build up a connecting secondary electromagnetic field, and (2) disconnect the at least one current source from the transmitter coil arrangement to build up a disconnecting secondary electromagnetic field; and a receiver arrangement comprising at least one receiver coil; wherein the airborne electromagnetic survey system further comprises an additional transmitter coil arrangement and a switch arrangement controller, the switch arrangement controller configured to disconnect the at least one current source from the transmitter coil arrangement and the additional transmitter coil arrangement at substantially a same time.