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公开(公告)号：US4910698A
公开(公告)日：1990-03-20
申请号：US284775
申请日：1988-12-12
申请人： Andrew McCartney
发明人： Andrew McCartney
IPC分类号： G06F7/544
CPC分类号： G06F7/5446
摘要： A circuit for generating successive points on a sine wave using the Coordinate Rotational Digital Computer (CORDIC) algorithm. An angle memory and an amplitude memory store respective angle and amplitude values from which a CORDIC logic processor calculates a point on a sine wave. A frequency memory stores an increment value unique to the frequency of the sine wave to be formed, and an arithmetic logic unit adds the increment value to the stored angle value after the point on the sine wave is calculated. The CORDIC logic processor then calculates the next point on the sine wave from the incremented angle value. A digital-to-analog converter may be used to provide an analog output signal.For generating multi-tone signals, the angle, amplitude and frequency memories are configured to store a plurality of angle, amplitude and increment values, and an address memory is connected to each memory for simultaneously addressing them. A periodic counter is connected to the address memory and cyclically selects the addresses in the address memory to be used for addressing the angle, amplitude and frequency memories. The multi-tone signals are then produced by serially time-multiplexing the CORDIC processor among the frequencies.
摘要翻译： 用于使用坐标旋转数字计算机（CORDIC）算法在正弦波上产生连续点的电路。 角度存储器和振幅存储器存储相应的角度和幅度值，CORDIC逻辑处理器从该值计算正弦波上的点。 频率存储器存储要形成的正弦波的频率唯一的增量值，并且在计算正弦波上的点之后，算术逻辑单元将增量值与存储的角度值相加。 然后CORDIC逻辑处理器从递增的角度值计算正弦波上的下一个点。 可以使用数模转换器来提供模拟输出信号。 为了产生多音调信号，角度，幅度和频率存储器被配置为存储多个角度，幅度和增量值，并且地址存储器连接到每个存储器以同时寻址它们。 周期性计数器连接到地址存储器，并循环选择地址存储器中用于寻址角度，幅度和频率存储器的地址。 然后通过在频率之间对CORDIC处理器进行串行时间复用来产生多音调信号。
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公开(公告)号：US08950495B2
公开(公告)日：2015-02-10
申请号：US13604562
申请日：2012-09-05
IPC分类号： E21B37/00
摘要： A method for cleaning a casing of an oil well is disclosed. Operational parameters for a cleaning tool may be defined based, at least in part, on results of a survey of the well. The cleaning tool may include a discharge head to generate electrical discharges between a pair of electrodes, the electrical discharges causing shock waves to remove deposits from the casing. The cleaning tool may be lowered into the casing. The cleaning tool may generate shock waves in accordance with the defined operational parameters to clean a predetermined target portion of the casing. The cleaning tool may be withdrawn from the casing.
摘要翻译： 公开了一种清洁油井套管的方法。 清洁工具的操作参数可以至少部分地基于井的调查结果来定义。 清洁工具可以包括排放头，以在一对电极之间产生放电，该放电引起冲击波从壳体移除沉积物。 清洁工具可以下降到壳体中。 清洁工具可以根据限定的操作参数产生冲击波，以清洁外壳的预定目标部分。 清洁工具可以从套管中取出。
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公开(公告)号：USD551926S1
公开(公告)日：2007-10-02
申请号：US29257081
申请日：2006-03-28
申请人： Andrew McCartney
设计人： Andrew McCartney
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公开(公告)号：US5027285A
公开(公告)日：1991-06-25
申请号：US316936
申请日：1989-02-28
摘要： An AC waveform monitoring system includes detecting circuitry for providing a sensed analog signal. Oscillator circuitry is coupled to the detecting circuitry for providing a zero crossing signal. The oscillator circuitry is synchronized with a frequency of the sensed analog signal. Signal processing circuitry is coupled to both the detecting circuitry and the oscillator circuitry for identifying a peak voltage signal and an integral volt-seconds signal of the sensed analog signal responsive to the zero crossing signal. Digital processing circuitry is coupled to the signal processing circuitry and the oscillator circuitry. The digital processing circuitry includes memory for storing a plurality of predetermined signal voltage boundary values and a program utilizing the identified peak voltage signal, the integral volt-seconds signal and the stored predetermined signal values to identify an abnormal voltage event.
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公开(公告)号：US20140060844A1
公开(公告)日：2014-03-06
申请号：US13604562
申请日：2012-09-05
IPC分类号： E21B37/00
摘要： A method for cleaning a casing of an oil well is disclosed. Operational parameters for a cleaning tool may be defined based, at least in part, on results of a survey of the well. The cleaning tool may include a discharge head to generate electrical discharges between a pair of electrodes, the electrical discharges causing shock waves to remove deposits from the casing. The cleaning tool may be lowered into the casing. The cleaning tool may generate shock waves in accordance with the defined operational parameters to clean a predetermined target portion of the casing. The cleaning tool may be withdrawn from the casing.
摘要翻译： 公开了一种清洁油井套管的方法。 清洁工具的操作参数可以至少部分地基于井的调查结果来定义。 清洁工具可以包括排放头以在一对电极之间产生放电，该放电引起冲击波从壳体移除沉积物。 清洁工具可以下降到壳体中。 清洁工具可以根据限定的操作参数产生冲击波，以清洁外壳的预定目标部分。 清洁工具可以从套管中取出。
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公开(公告)号：US20140060804A1
公开(公告)日：2014-03-06
申请号：US13605450
申请日：2012-09-06
IPC分类号： E21B37/00
CPC分类号： E21B37/00
摘要： A tool for cleaning a casing of an oil well may include an elongate housing configured to be lowered into a well casing. A discharge head may be disposed at one end of the housing, the discharge head including a first electrode having a first end surface, a first insulator surrounding the first electrode, a surface of the first insulator substantially flush with the first end surface, and a second electrode having a second end surface separated from the first end surface by a discharge gap. An energy reservoir and a switch may be disposed within the housing, the switch configured to selectively couple the energy reservoir to the first electrode and the second electrode to cause energy stored in the energy reservoir to discharge across the discharge gap.
摘要翻译： 用于清洁油井的壳体的工具可以包括被配置为下降到井套管中的细长壳体。 排出头可以设置在壳体的一端，排出头包括具有第一端面的第一电极，围绕第一电极的第一绝缘体，第一绝缘体的基本上与第一端面齐平的表面，以及 第二电极具有通过放电间隙与第一端表面分离的第二端表面。 能量储存器和开关可以设置在壳体内，开关被配置为选择性地将能量储存器耦合到第一电极和第二电极，以使存储在能量储存器中的能量跨越放电间隙放电。
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公开(公告)号：US08286535B1
公开(公告)日：2012-10-16
申请号：US12798637
申请日：2010-04-07
申请人： Andrew McCartney
发明人： Andrew McCartney
CPC分类号： B25B13/00 , B25F1/02 , B60B29/003 , Y10T74/217
摘要： A wrench for handling a fastener, involving an elongated member with a proximal end and a distal end, a step pad being disposed proximate the elongated member proximal end and for providing additional torque, and an adapter being disposed proximate the elongated member distal end. The adapter may include an element, such as a socket member and a ratchet member. The elongated member distal end may include a tool member.
摘要翻译： 一种用于处理紧固件的扳手，包括具有近端和远端的细长构件，台阶垫邻近细长构件近端设置并用于提供附加扭矩，以及适配器设置在细长构件远端附近。 适配器可以包括诸如插座构件和棘轮构件的元件。 细长构件远端可包括工具构件。
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公开(公告)号：US20080257119A1
公开(公告)日：2008-10-23
申请号：US12151802
申请日：2008-05-09
申请人： Andrew McCartney
发明人： Andrew McCartney
CPC分类号： B25B13/00 , B60B29/003 , Y10T29/49
摘要： A wrench for handling a fastener, involving an elongated member with a proximal end and a distal end, a step pad being disposed proximate the elongated member proximal end and for providing additional torque, and an adapter being disposed proximate the elongated member distal end. The adapter may include an element, such as a socket member and a ratchet member. The elongated member distal end may include a tool member.
摘要翻译： 一种用于处理紧固件的扳手，包括具有近端和远端的细长构件，台阶垫邻近细长构件近端设置并用于提供附加扭矩，以及适配器设置在细长构件远端附近。 适配器可以包括诸如插座构件和棘轮构件的元件。 细长构件远端可包括工具构件。
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9.发明授权Line noise signal measurement system using analog signal compression with digital linearity correction 失效线噪声信号测量系统采用模拟信号压缩与数字线性校正
公开(公告)号：US4940947A
公开(公告)日：1990-07-10
申请号：US316798
申请日：1989-02-28
申请人： Andrew McCartney , Thomas McCartney
发明人： Andrew McCartney , Thomas McCartney
IPC分类号： G01R29/26
CPC分类号： G01R29/26
摘要： A line noise signal measurement system is provided with detecting circuitry for providing a sensed analog signal. Compression circuitry is coupled to the detecting circuitry for providing an amplitude compressed signal responsive to the applied sensed signal. The compression circuitry has a stepwise substantially linear transfer function responsive to a variable magnitude of the applied sensed signal. Signal processing circuitry is coupled to the compression circuitry for sequentially generating a digital signal representative of the sensed analog signal. Digital processing circuitry sequentially identifies a maximum peak signal for a predetermined time interval and provides linearity correction for the identified maximum peak signals and generates a display of the corrected peak signals.
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公开(公告)号：USD578362S1
公开(公告)日：2008-10-14
申请号：US29292205
申请日：2007-10-01
申请人： Andrew McCartney
设计人： Andrew McCartney
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