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    • 61. 发明授权
    • Fluid flow metering method and system
    • 流体流量计方法与系统
    • US3839911A
    • 1974-10-08
    • US17099371
    • 1971-08-11
    • HALLIBURTON CO
    • ZIMMERMAN CCOPLAND G
    • G01F1/12G01F15/02G01F1/00
    • G01F1/125G01F15/024
    • A fluid flow metering method and system using digital signals and logic for producing a compensated manifestation of fluid flow by the mathematical multiplication of two or more sensed parameters, one parameter being a fluid flow rate and the other one or more parameters being related to a condition of the fluid such as its constituency, pressure, density, dielectric constant, temperature or the like, where the parameters are represented by series of electrical pulses and where the frequency of one of the series of electrical pulses varies reciprocally to the parameter sensed.
    • 一种使用数字信号和逻辑的流体流量计量方法和系统,用于通过两个或多个感测参数的数学乘积来产生流体流动的补偿表现,一个参数是流体流速,而另一个或多个参数与条件 的流体,例如其选区,压力,密度,介电常数,温度等,其中参数由一系列电脉冲表示,并且其中一系列电脉冲的频率与所感测的参数相互变化。
    • 62. 发明授权
    • Self-propelled pipeline plug
    • 自动管道插头
    • US3837214A
    • 1974-09-24
    • US32802273
    • 1973-01-30
    • HALLIBURTON CO
    • GUEST R
    • F16L55/128G01M3/00G01M3/28
    • F16L55/1283G01M3/005G01M3/2823
    • A self-propelled pig carrying plugging means for sealing a pipeline at selected points along the length thereof in which the pig may be stopped and the plugging means selectively actuated for sealing the pipeline. A leak may then be detected and evaluated by pressurizing the pipeline from a point on one side of the pig, and thereafter monitoring pipeline pressure. Alternatively, a leak condition may be separately sensed, the pig positioned to one side of the leak, the plugging means actuated, and the pipeline pressurized from the point on the other side of the leak, for evaluating leak size by monitoring the rate of pipeline depressurization.
    • 一种用于在其长度可以停止猪的选定点处密封管道的封闭装置,以及选择性地致动密封管道的堵塞装置。 然后可以通过从猪的一侧的点对管道进行加压来检测和评估泄漏,然后监测管道压力。 或者,可以单独地感测到泄漏情况,猪定位在泄漏的一侧,堵塞装置被致动,并且管道从泄漏的另一侧的点被加压,以通过监测管道的速率来评估泄漏尺寸 减压
    • 66. 发明授权
    • Fluid flow compensating method and system
    • 流体流动补偿方法与系统
    • US3774448A
    • 1973-11-27
    • US3774448D
    • 1972-06-15
    • HALLIBURTON CO
    • GASS EPARAMORE F
    • G01F1/12G01F15/02G06F7/68G01F1/00
    • G06F7/68G01F1/125G01F15/024
    • A method and apparatus for generating an output signal selectively displaced in phase from an input signal wherein the phase displacement remains the same irrespective of changes in the input signal frequency. A reference signal related in amplitude to the frequency of the input signal and a comparing signal which varies at a predetermined rate for a period of time related to the frequency of the input signal are compared, and a pulse is generated in response to the comparison. More specifically, a capacitor is charged and discharged from alternately enabled positive and negative constant current sources during successive interpulse periods of the input signal. The voltage on the capacitor is stored at the end of each charging period and the varying voltage across the capacitor is compared with one or more percentages of the stored voltage to generate output pulses. The output pulses may be combined with the input signal to provide frequency multiplication or the percentage may be made variable to provide variable phase shifting. A system for increasing the resolution of measurements obtained from a digital transducer and a system for generating selectively phase shifted control signals are also disclosed.
    • 一种用于产生选择性地从输入信号相移的输出信号的方法和装置,其中相位位移保持不变,而与输入信号频率的变化无关。 将与幅度相关的参考信号与输入信号的频率和在与输入信号的频率相关的时间段以预定速率变化的比较信号进行比较,并且响应于该比较产生脉冲。 更具体地说,在输入信号的连续的脉冲间隔期间,电容器从交替使能的正和负恒定电流源充电和放电。 在每个充电周期结束时存储电容器上的电压,并将电容器两端的变化电压与存储电压的一个或多个百分比进行比较以产生输出脉冲。 输出脉冲可以与输入信号组合以提供倍频,或者百分比可变为提供可变相移。 还公开了一种用于增加从数字换能器和用于产生选择性相移控制信号的系统获得的测量的分辨率的系统。
    • 70. 发明授权
    • Variable frequency multiplier and phase shifter
    • 可变频率乘法器和相位变换器
    • US3743946A
    • 1973-07-03
    • US3743946D
    • 1971-06-11
    • HALLIBURTON CO
    • GASS EPARAMORE F
    • G01F1/12G01F15/02G06F7/68H03K5/20
    • G01F15/024G01F1/125G06F7/68
    • A method and apparatus for generating an output signal selectively displaced in phase from an input signal wherein the phase displacement remains the same irrespective of changes in the input signal frequency. A reference signal related in amplitude to the frequency of the input signal and a comparing signal which varies at a predetermined rate for a period of time related to the frequency of the input signal are compared, and a pulse is generated in response to the comparison. More specifically, a capacitor is charged and discharged from alternately enabled positive and negative constant current sources during successive interpulse periods of the input signal. The voltage on the capacitor is stored at the end of each charging period and the varying voltage across the capacitor is compared with one or more percentages of the stored voltage to generate output pulses. The output pulses may be combined with the input signal to provide frequency multiplication or the percentage may be made variable to provide variable phase shifting. A system for increasing the resolution of measurements obtained from a digital transducer and a system for generating selectively phase shifted control signals are also disclosed.
    • 一种用于产生选择性地从输入信号相移的输出信号的方法和装置,其中相位位移保持不变,而与输入信号频率的变化无关。 将与幅度相关的参考信号与输入信号的频率和在与输入信号的频率相关的时间段以预定速率变化的比较信号进行比较,并且响应于该比较而产生脉冲。 更具体地说,在输入信号的连续的脉冲间隔期间,电容器从交替使能的正和负恒定电流源充电和放电。 在每个充电周期结束时存储电容器上的电压,并将电容器两端的变化电压与存储电压的一个或多个百分比进行比较以产生输出脉冲。 输出脉冲可以与输入信号组合以提供倍频,或者百分比可变为提供可变相移。 还公开了一种用于增加从数字换能器和用于产生选择性相移控制信号的系统获得的测量的分辨率的系统。