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公开(公告)号：US06529443B2
公开(公告)日：2003-03-04
申请号：US09757830
申请日：2001-01-10
IPC分类号： G01V100
CPC分类号： G01V1/22
摘要： A two-conductor bidirectional digital telemetry interface between a seismic sensor acquisition/conversion module and a seismic data collection module. The data collection module is configured as a master electronics device and the sensor acquisition/conversion module is configured as a slave electronics device in the telemetry system. The master device provides power to the slave device over the two conductors. The master device transmits portions of commands to the slave device at a first time and the slave device transmits portions of a digital seismic data packet to the master at a different second time in a fixed-duration frame. The frames are transmitted at regular intervals. The outbound commands and inbound data are encoded by block codes. A phase-locked loop in the slave is locked to a master clock in the master by deriving a clock and a sync point from the block-coded commands it receives from the master. The block code representing each command bit minimizes dc drift and provides a level transition in the command that can be used to maintain synchronism between master and slave.
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公开(公告)号：US20080285379A1
公开(公告)日：2008-11-20
申请号：US12122233
申请日：2008-05-16
IPC分类号： G01V1/00
CPC分类号： G01V1/22 , G01V1/201 , G01V1/38 , G01V11/002
摘要： An apparatus for collecting geophysical information may include a geophysical information station disposed along a seismic communication cable. A bypass circuit responsive to a command signal is in communication with a switching circuit that is operable to route electrical power, commands, data or a combination to bypass the geophysical information station in response to the command signal. An exemplary method for bypassing a geophysical information station in a geophysical information collection system includes sending a command signal to a bypass circuit and activating one or more switching circuits using the bypass circuit to route electrical power, commands, data or a combination to bypass the geophysical information station in response to the command signal.
摘要翻译： 用于收集地球物理信息的装置可以包括沿着地震通信电缆设置的地球物理信息站。 响应于命令信号的旁路电路与可操作以路由电力，命令，数据或组合的开关电路通信，以响应于命令信号绕过地球物理信息站。 用于绕过地球物理信息收集系统中的地球物理信息站的示例性方法包括向旁路电路发送命令信号，并使用旁路电路激活一个或多个开关电路以路由电力，命令，数据或组合以绕过地球物理学 信息站响应命令信号。
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公开(公告)号：US08830790B2
公开(公告)日：2014-09-09
申请号：US12122233
申请日：2008-05-16
CPC分类号： G01V1/22 , G01V1/201 , G01V1/38 , G01V11/002
摘要： An apparatus for collecting geophysical information may include a geophysical information station disposed along a seismic communication cable. A bypass circuit responsive to a command signal is in communication with a switching circuit that is operable to route electrical power, commands, data or a combination to bypass the geophysical information station in response to the command signal. An exemplary method for bypassing a geophysical information station in a geophysical information collection system includes sending a command signal to a bypass circuit and activating one or more switching circuits using the bypass circuit to route electrical power, commands, data or a combination to bypass the geophysical information station in response to the command signal.
摘要翻译： 用于收集地球物理信息的装置可以包括沿着地震通信电缆设置的地球物理信息站。 响应于命令信号的旁路电路与可操作以路由电力，命令，数据或组合的开关电路通信，以响应于命令信号绕过地球物理信息站。 用于绕过地球物理信息收集系统中的地球物理信息站的示例性方法包括向旁路电路发送命令信号，并使用旁路电路激活一个或多个开关电路以路由电力，命令，数据或组合以绕过地球物理学 信息站响应命令信号。
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4.发明授权Permanent seafloor seismic recording system utilizing micro electro-mechanical systems seismic sensors and method of deploying same 有权使用微机电系统地震传感器的永久性海底地震记录系统及其部署方法公开(公告)号：US06992951B2
公开(公告)日：2006-01-31
申请号：US10668911
申请日：2003-09-23
申请人： Thomas E. O'Brien , Magne Oldervoll , Leon Lovheim , Allen J. Bishop , William P. Campbell , Ronald G. Schmidt , Douglas S. Wheeler , Geoffrey M. Nightingale
发明人： Thomas E. O'Brien , Magne Oldervoll , Leon Lovheim , Allen J. Bishop , William P. Campbell , Ronald G. Schmidt , Douglas S. Wheeler , Geoffrey M. Nightingale
IPC分类号： G01V1/38
CPC分类号： G01V1/3808 , G01V1/003 , G01V1/16
摘要： Provided is a permanent seafloor seismic recording system utilizing Micro Electro-Mechanical Systems seismic sensors. The system includes and expandable backbone, multiple hubs and sensor lines. The sensor lines include multiple sensor modules that include 3-C accelerometers and a hydrophone for providing a 4-C sensor module output signal.
摘要翻译： 提供使用微机电系统地震传感器的永久性海底地震记录系统。 该系统包括可扩展主干，多个集线器和传感器线。 传感器线路包括多个传感器模块，包括3-C加速度计和一个用于提供4-C传感器模块输出信号的水听器。
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5.发明授权System and method for linearizing analog measurements during analog-to-digital conversion 失效在模数转换期间线性化模拟测量的系统和方法
公开(公告)号：US3979745A
公开(公告)日：1976-09-07
申请号：US444953
申请日：1974-02-22
申请人： Allen J. Bishop
发明人： Allen J. Bishop
摘要： An instrument for linearizing a non-linear analog output produced from a sensor such as a thermocouple to obtain a true measurement of the parameter or engineering units of interests. The full range of the non-linear analog output is divided into segments and within each segment the second slope or the rate of change of the first slope of the analog output is predetermined and stored. In carrying out measurements, the magnitude of the analog output sensed is converted to constant frequency pulses. When measurements are carried out, within a given segment the corresponding second slope data is employed to modify the frequency of the constant frequency pulses to obtain output pulses for accumulation. These output pulses have a frequency which at any given moment is representative of the first slope of the analog output and which changes at a rate representative of the rate of change of the first slope of the analog output. The resulting output pulses thus are accumulated at a non-linear rate to obtain an output that will accurately follow the non-linear curve of the sensor and which will result in a true measurement of the engineering units of interest.
摘要翻译： 用于线性化由传感器（例如热电偶）产生的非线性模拟输出的仪器，以获得参数或工程单位感兴趣的真实测量。 非线性模拟输出的全范围分为段，并且在每个段内，模拟输出的第一斜率或第一斜率的变化率被预先确定并存储。 在进行测量时，感测到的模拟输出的幅度被转换为恒定的频率脉冲。 当进行测量时，在给定的段内，使用相应的第二斜率数据来修改恒定频率脉冲的频率以获得用于积累的输出脉冲。 这些输出脉冲具有在任何给定时刻表示模拟输出的第一斜率并且以表示模拟输出的第一斜率的变化率的速率变化的频率。 因此，所得到的输出脉冲以非线性速率累加以获得将精确地跟随传感器的非线性曲线的输出，并且将导致感兴趣的工程单位的真实测量。
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