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1. 发明授权

US5540106A Electronic method for measuring mass flow rate 失效
标题翻译：用于测量质量流量的电子方法
公开(公告)号：US5540106A
公开(公告)日：1996-07-30
申请号：US14708
申请日：1993-02-08
申请人： Hyok S. Lew , Yon S. Lew
发明人： Hyok S. Lew , Yon S. Lew
IPC分类号： G01F1/80 , G01F1/84
CPC分类号： G01F1/8495 , G01F1/8413 , G01F1/8436 , G01F1/8468 , G01F1/8472 , G01F1/8477 , G01F1/8481 , G01F1/8486
摘要： A method for determining mass flow rate of media moving through at least one conduit under a flexural vibration comprises analyzing two alternating electrical signals respectively representing the flexural vibration of the conduit at two different sections of the conduit, and determining the mass flow rate as a function of an independent variable generated by a ratio between two groups of various combinations of the two alternating electrical signals, which method also provides a method for determining phase angle difference between two alternating electrical signals without actually measuring the lead time or lag time between the two alternating electrical signals in the time domain.
摘要翻译：用于确定在弯曲振动下通过至少一个导管移动的介质的质量流量的方法包括分析两个交替的电信号，分别表示导管的两个不同部分处的导管的弯曲振动，并且确定质量流量作为一个功能由两个交替电信号的各种组合的两组之间的比率产生的独立变量，该方法还提供了一种用于确定两个交替电信号之间的相位差的方法，而不实际测量两个交替电信号之间的提前时间或滞后时间电信号在时域。

2. 发明授权

US5504789A Phase detetion method for flow measurement and other applications 失效
标题翻译：流量测量和其他应用的相位检测方法
公开(公告)号：US5504789A
公开(公告)日：1996-04-02
申请号：US91269
申请日：1993-07-15
申请人： Hyok S. Lew , Yon S. Lew , Yon K. Lew
发明人： Hyok S. Lew , Yon S. Lew , Yon K. Lew
IPC分类号： G01F1/58 , G01F1/60 , G01F1/84 , G01R25/08 , G06F7/38 , H03K19/003
CPC分类号： G01F1/8436 , G01F1/588 , G01F1/60 , G01F1/8486 , G01R25/08
摘要： A phase angle difference between two alternating electrical signals is determined as a function of a ratio of a differential combination of two different numbers of pulse counts to an additive combination of the two different numbers of pulse counts, wherein the first of the two different numbers of pulse counts is obtained by counting a series of electric pulses generated by an electrical pulse generator in a time interval between an occurrence of zero value of the leading signal of the two alternating electrical signal and (i-1)th occurrence of zero value of the trailing signal of the two alternating electrical signals occurring after the occurrence of zero value of the leading signal, and the second of the two different numbers of pulse counts is obtained by counting the pulses in an time interval between an occurrence of zero value of the trailing signal and the (j)th occurrence of zero value of the leading signal occurring after the occurrence of zero value of the trailing signal, wherein (i) and (j) are integers; and the phase angle so determined is used to determine the mass flow rate of media by using a convective inertia force flowmeter.
摘要翻译：两个交替电信号之间的相位角差被确定为两个不同数量的脉冲计数的差分组合与两个不同数量的脉冲计数的加法组合的比率的函数，其中两个不同数目的脉冲计数中的第一个通过在两个交流电信号的前导信号的零值的出现与第（i-1）次的零值的出现之间的时间间隔内对由电脉冲发生器产生的一系列电脉冲进行计数来获得脉冲计数，通过在引导信号的零值出现之后发生的两个交替电信号的尾部信号，以及两个不同数量的脉冲计数中的第二个，通过在后沿的零值的出现之间的时间间隔中对脉冲进行计数来获得信号和发生在尾随信号的零值出现之后的前导信号的零值的第（j）次出现，其中（i）和（j）是整数; 并且如此确定的相位角用于通过使用对流惯性力流量计来确定介质的质量流量。

3. 发明授权

US5456121A Pivotable vane flowmeter with capacitive position sensor 失效
标题翻译：带电容位置传感器的透视叶片流量计
公开(公告)号：US5456121A
公开(公告)日：1995-10-10
申请号：US137560
申请日：1993-10-18
申请人： Hyok S. Lew , Yon S. Lew , Yon K. Lew
发明人： Hyok S. Lew , Yon S. Lew , Yon K. Lew
IPC分类号： G01F1/10 , G01F1/28 , G01F5/00
CPC分类号： G01F5/00 , G01F1/106 , G01F1/28
摘要： A pivotable vane flowmeter comprises at least one pivotable vane disposed pivotably about a pivot axis parallel to the the direction of fluid flow and experiencing a fluid dynamic torque created by the fluid flow, a bias spring or counter-weight providing a bias torque counter-acting the fluid dynamic torque, and a rotary position sensor detecting the rotary position of the pivotable vane about the pivot axis, wherein the dynamic pressure of the fluid flow is determined as a function of the rotary position of the pivotable vane about the pivot axis, and the time rate of the fluid flow is determined from a combination of the dynamic pressure of the fluid flow and the known or measured value of the fluid density, or from another combination of the dynamic pressure of the fluid flow and the frequency of rotation of a rotating turbine or propeller installed in conjunction with the pivotable vane flowmeter.
摘要翻译：可枢转叶片流量计包括至少一个可枢转的叶片，该枢转叶片围绕平行于流体流动方向的枢转轴线可枢转地旋转，并且经历由流体流动产生的流体动力学扭矩，偏置弹簧或配重提供偏置扭矩反作用流体动力学扭矩和旋转位置传感器，其检测可枢转叶片围绕枢转轴线的旋转位置，其中流体流动的动态压力被确定为可枢转叶片围绕枢转轴线的旋转位置的函数，以及流体流动的时间速率由流体流动的动态压力和流体密度的已知或测量值的组合确定，或者由流体流动的动态压力和旋转频率的另一组合旋转涡轮机或螺旋桨与可转动叶片流量计一起安装。

4. 发明授权

US5419189A Method for obtaining zero flowmeter reading for zero flow 失效
标题翻译：零流量零流量计读数的方法
公开(公告)号：US5419189A
公开(公告)日：1995-05-30
申请号：US164925
申请日：1993-12-10
申请人： Hyok S. Lew , Yon S. Lew , Hyon S. Lew
发明人： Hyok S. Lew , Yon S. Lew , Hyon S. Lew
IPC分类号： G01F1/12 , G01F1/28 , G01F1/32 , G01F1/696 , G01F15/00
CPC分类号： G01F1/125 , G01F1/28 , G01F1/329 , G01F1/696
摘要： A flowmeter comprises an output cut-off circuit controlled by a command signal generated by a flow switch, wherein the flow switch generates a command signal switching on the transmission of an electrical signal representing the flow rate of media to an output terminal, when the flow rate of media being measured by the flowmeter is greater than a preset threshold value, and switches off the transmission of the electrical signal representing the flow rate of media to the output terminal, when the flow rate of media is less than the preset threshold value.
摘要翻译：流量计包括由流量开关产生的命令信号控制的输出截止电路，其中流量开关产生一个命令信号，该命令信号在表示流体流向媒体的电信号时输出到输出终端当介质的流量小于预设的阈值时，由流量计测量的介质的速率大于预设的阈值，并且将代表介质的流速的电信号的传输切换到输出端。

5. 发明授权

US5351556A Compound electronic filter for vortex flowmeters 失效
标题翻译：用于涡街流量计的复合电子滤波器
公开(公告)号：US5351556A
公开(公告)日：1994-10-04
申请号：US113197
申请日：1993-08-30
申请人： Yon S. Lew , Hyok S. Lew
发明人： Yon S. Lew , Hyok S. Lew
IPC分类号： G01F1/28 , G01F1/32 , G01F1/696
CPC分类号： G01F1/28 , G01F1/329 , G01F1/696
摘要： A compound electronic filter for conditioning an alternating electrical signal generated by vortex shedding in a vortex flowmeter has a first stage filter comprising a first plurality of electronic filters respectively including a first plurality of electronic switches and a second stage filter comprising a second plurality of electronic filters respectively including a second plurality of electronic switches, wherein the first plurality of electronic switches switching on and off the first plurality of electronic filters one at a time are controlled by a first command signal generated from the frequency of the output signal from the first stage filter, and the second plurality of electronic switches switching on and off the second plurality of electronic filters one at a time are controlled by a second command signal generated from the frequency of the output signal from the first stage filter.
摘要翻译：一种用于调节在涡街流量计中由涡流脱落产生的交流电信号的复合电子滤波器具有包括分别包括第一多个电子开关的第一多个电子滤波器的第一级滤波器和包括第二多个电子滤波器的第二级滤波器分别包括第二多个电子开关，其中一次一个接通和断开第一多个电子滤波器的第一多个电子开关由从第一级滤波器的输出信号的频率产生的第一命令信号控制并且一次一个接通和断开第二多个电子滤波器的第二多个电子开关由从第一级滤波器的输出信号的频率产生的第二命令信号控制。

6. 发明授权

US4512372A Floating disc divert valve 失效
标题翻译：浮盘转向阀
公开(公告)号：US4512372A
公开(公告)日：1985-04-23
申请号：US395834
申请日：1982-01-06
申请人： Hyok S. Lew , Yon S. Lew
发明人： Hyok S. Lew , Yon S. Lew
IPC分类号： F16K11/052 , F16K11/16
CPC分类号： F16K11/0525 , Y10T137/87708 , Y10T137/8782 , Y10T137/87909
摘要： This invention relates to a divert valve comprising a pair of disc valves operated by a common actuator wherein the tolerance in the mating between the valve seat and the disc in one disc valve disposed in the first bifurcating pipe is controlled independent of the other disc valve disposed in the second bifurcating pipe branching out from the first bifurcating pipe.
摘要翻译：本发明涉及一种转向阀，其包括由公共致动器操作的一对盘阀，其中设置在第一分叉管中的一个盘阀中的阀座和盘之间的配合中的公差被独立于另一个盘阀设置在从第一分叉管分支出的第二分支管中。

7. 发明授权

US5675091A Step-wise tracking electronic filter with offset up and down transition 失效
标题翻译：逐步跟踪电子滤波器，具有偏移上下转换
公开(公告)号：US5675091A
公开(公告)日：1997-10-07
申请号：US488966
申请日：1995-06-08
申请人： Hyok S. Lew , Yon S. Lew , Hyon S. Lew
发明人： Hyok S. Lew , Yon S. Lew , Hyon S. Lew
IPC分类号： G01F1/12 , G01F1/28 , G01F1/32 , G01F1/696
CPC分类号： G01F1/696 , G01F1/125 , G01F1/28 , G01F1/329
摘要： A step-wise tracking electronic filter comprises a parallel bank of a plurality of band pass filters respectively having a plurality of electronic switches and respectively having different band widths, and a command signal generating device generating a command signal from the frequency of a primary alternating electrical signal being transmitted through the step-wise tracking electronic filter and being conditioned thereby or from an auxiliary alternating electrical signal obtained for the sole purpose of generating the command signal therefrom; wherein the command signal closes one of the plurality of electronic switches belonging to one of the plurality of band pass filters having a band width substantially including the frequency of the primary alternating electrical signal and opens the electronic switch when the band width of the band pass filter substantially excludes the frequency of the primary alternating electrical signal in an operating mode wherein only one electronic switch is closed at a time, and the command signal closes the first of two electronic switches respectively belonging to an adjacent pair of the band pass filters and opens the second of the two electronic switches when the frequency of the primary alternating electrical signal is equal to a first value of a transition frequency, and closes the second of the two electronic switches and opens the first of the two electronic switches when the frequency of the primary alternating electronic signal is equal to a second value of the transition frequency offset from the first value of the transition frequency.
摘要翻译：分步跟踪电子滤波器包括分别具有多个电子开关并且分别具有不同带宽的多个带通滤波器的并联组，以及命令信号发生装置，其从主交流电的频率产生命令信号信号通过逐步跟踪电子滤波器传输并由其调节，或由辅助交流电信号获得，其唯一目的是从其生成命令信号; 其特征在于，所述命令信号关闭属于所述多个带通滤波器中的一个的多个电子开关中的一个，所述带通滤波器的带宽基本上包括所述主交流电信号的频率，并且当所述带通滤波器的带宽在其中只有一个电子开关一次关闭的操作模式中基本排除了初级交流电信号的频率，并且命令信号闭合分别属于相邻的一对带通滤波器的两个电子开关中的第一个，并打开当主交流电信号的频率等于转换频率的第一值时，两个电子开关中的第二个，并且当主电流开关的频率为两个时，关闭两个电子开关中的第二个并打开两个电子开关中的第一个交替电子信号等于过渡频率的第二值从转换频率的第一个值开始fset。

8. 发明授权

US5627325A Capacitively coupled ohmic resistance position sensor 失效
标题翻译：电容耦合欧姆电阻位置传感器
公开(公告)号：US5627325A
公开(公告)日：1997-05-06
申请号：US488599
申请日：1995-06-08
申请人： Hyok S. Lew , Yon S. Lew
发明人： Hyok S. Lew , Yon S. Lew
IPC分类号： G01F23/26 , G01B7/00 , G01F1/24 , G01F23/24 , G01F23/68 , G01R27/02 , G01F1/22
CPC分类号： G01F1/28 , G01F1/24 , G01F23/68
摘要： A position sensor comprises a pair of electrically conducting elongated members having a high ohmic resistance per unit length thereof disposed parallel to one another in a direction defined by the line of displacement of a target member, and a capacitively coupling member disposed adjacent to the pair of electrically conducting elongated members and moving with the target member in the direction of displacement, which capacitively coupling member transmits an alternating electrical signal between the pair of electrically conducting elongated members by a capacitive electrical interaction therebetween, wherein an alternating electrical signal is supplied to the two opposite extremities of one of the pair of electrically conducting elongated members and a phase angle difference between two alternating electrical signals respectively taken off from the two opposite extremities of the other of the pair of electrically conducting elongated members is measured, and the position of the target member is determined as a function of the measured phase angle difference.
摘要翻译：位置传感器包括一对导电细长构件，其具有每单位长度的高欧姆电阻，其在由目标构件的位移线限定的方向上彼此平行地设置;以及电容耦合构件，邻近所述一对导电细长构件并且沿着位移方向与目标构件一起移动，该电容耦合构件通过它们之间的电容性电气相互作用在一对导电细长构件之间传递交替电信号，其中交替的电信号被提供给两个测量一对导电细长构件之一的相对两端，并且分别从一对导电细长构件中的另一个的两个相对端分别取出的两个交替电信号之间的相位角差，并且测量位置 t成分被确定为所测量的相位角差的函数。

9. 发明授权

US5598103A Interface distance sensor and its application to pressure sensing 失效
标题翻译：接口距离传感器及其应用于压力感测
公开(公告)号：US5598103A
公开(公告)日：1997-01-28
申请号：US358723
申请日：1994-12-19
申请人： Hyok S. Lew , Yon S. Lew
发明人： Hyok S. Lew , Yon S. Lew
IPC分类号： G01F23/26 , G01B7/00 , G01F1/24 , G01F23/24 , G01F23/68 , G01R27/02 , G01B7/15
CPC分类号： G01F1/28 , G01F1/24 , G01F23/68
摘要： An apparatus for measuring distance between two interfaces comprises a first electrically conductive planar member defining the first of the two interfaces, a second electrically conductive planar member defining the second of the two interfaces, an alternating electrical signal generator supplying an input alternating electrical signal to the first electrically conductive planar member through a first electrical conductor having a high value of ohmic resistance, and a phase difference measuring device measuring a phase angle difference between a first output alternating electrical signal taken off from one extremity of the second electrically conductive planar member through a second electrical conductor having a high value of ohmic resistance and a second output alternating electrical signal taken off from the other extremity of the second electrically conductive planar member or from the alternating electrical signal generator; wherein the distance between the two interfaces is determined as a function of the phase angle difference between the first and second output alternating electrical signals.
摘要翻译：用于测量两个接口之间的距离的装置包括限定两个接口中的第一个接口的第一导电平面构件，限定两个接口中的第二接口的第二导电平面构件，交替电信号发生器，向通过具有高欧姆电阻值的第一电导体的第一导电平面构件，以及相位差测量装置，其测量从第二导电平面构件的一个末端从一个末端取出的第一输出交变电信号之间的相位角差具有高欧姆电阻值的第二电导体和从第二导电平面构件的另一端或从交替电信号发生器中取出的第二输出交替电信号; 其中两个接口之间的距离被确定为第一和第二输出交流电信号之间的相位角差的函数。

10. 发明授权

US5501106A Inertia force flowmeter with pivotally supported vibrating conduit 失效
标题翻译：惯性力流量计具有枢转支撑的振动导管
公开(公告)号：US5501106A
公开(公告)日：1996-03-26
申请号：US152370
申请日：1993-11-16
申请人： Hyok S. Lew , Yon S. Lew , Yon K. Lew
发明人： Hyok S. Lew , Yon S. Lew , Yon K. Lew
IPC分类号： G01F1/84
CPC分类号： G01F1/8413 , G01F1/8472 , G01F1/8477 , G01F1/8481 , G01F1/8486
摘要： A mass flowmeter comprises at least one conduit supported by a frame structure in a relationship allowing an enhanced pivotal vibration about two mutually orthogonal pivot axes, an electromagnetic vibrator generating a primary pivotal vibration of the conduit about one of the two mutually orthogonal pivot axes, and a pair of vibration sensors respectively included in two opposite halves of the conduit respectively located on two opposite sides of a plane including the other of the two mutually orthogonal pivot axes; wherein the mass flow rate of media moving through the conduit is determined as a function of an electrical variable such as the phase angle difference between two alternating electrical signals respectively generated by the pair of vibration sensors, which electrical variable represents the ratio of the amplitude of the secondary pivotal vibration to the amplitude of the primary pivotal vibration.
摘要翻译：质量流量计包括由框架结构支撑的至少一个管道，其允许围绕两个相互正交的枢转轴线的增强的枢转振动;电磁振动器，围绕两个相互正交的枢转轴线之一产生导管的初级枢转振动;以及分别包括在分别位于包括两个相互正交的枢转轴线中的另一个的平面的两个相对侧上的导管的两个相对的两半中的一对振动传感器; 其中通过导管移动的介质的质量流率被确定为电变量的函数，诸如由一对振动传感器分别产生的两个交流电信号之间的相位角差，该电变量表示主要枢转振动的二次枢转振动。

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