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公开(公告)号：US5659251A
公开(公告)日：1997-08-19
申请号：US435170
申请日：1995-05-05
申请人： Hideki Wakamatsu
发明人： Hideki Wakamatsu
CPC分类号： G01R27/267 , G01N27/023 , G01R27/2676 , G01R35/005
摘要： A highly accurate electromagnetic-induction-type conductivity and dielectric constant meter is obtained by using a calibration box (instrument) and a structure as below. The conductivity and dielectric constant meter employs an electromagnetic inductive probe which includes a primary transformer composed of a toroidal core with a wound primary coil, a secondary transformer composed of a toroidal core with a wound secondary coil, an electrostatic shield shielding the transformers, and cables that connect the probe to a meter. To eliminate the electrostatic capacity produced by causes other than electromagnetic induction, the structure of the probe is symmetrical. In a first embodiment, the secondary transformer is placed between two parts of the primary transformer, which has two cores of the same shape that are placed symmetrically. The structure, including the primary and secondary transformers, gaps in the electrostatic shields, and cables, are symmetrical with respect to a plane perpendicular to the central axis of the ring shapes and passes through the center of the annular core of the secondary transformer.
摘要翻译： 通过使用校准箱（仪器）和以下结构获得高精度的电磁感应型电导率和介电常数计。 导电率和介电常数计采用电磁感应探头，其包括由具有绕组初级线圈的环形磁芯组成的初级变压器，由具有绕组次级线圈的环形磁芯组成的次级变压器，屏蔽变压器的静电屏蔽层和电缆 将探头连接到仪表。 为了消除由电磁感应以外的原因产生的静电容量，探针的结构是对称的。 在第一实施例中，次级变压器被放置在主变压器的两部分之间，其具有对称放置的相同形状的两个芯。 包括主变压器和次级变压器的结构，静电屏蔽件和电缆中的间隙相对于垂直于环形中心轴线的平面是对称的并且穿过次级变压器的环形芯的中心。
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公开(公告)号：US5469754A
公开(公告)日：1995-11-28
申请号：US282599
申请日：1994-07-29
IPC分类号： F16H61/04 , F16H59/36 , F16H59/40 , F16H59/42 , F16H59/46 , F16H59/70 , F16H61/06 , F16H61/70 , F16H59/20
CPC分类号： F16H61/061 , F16H2061/044 , F16H59/36 , F16H59/40 , F16H59/42 , F16H59/46 , F16H59/70 , F16H61/70 , F16H61/702 , Y10T74/1926
摘要： The transmission is of a type that a low-speed transmission train is established in cooperation with one-way clutch. A high-speed transmission train is established by hydraulic oil supply via a shift valve in a condition in which the hydraulic oil is kept supplied to the low-speed hydraulic engaging element. A pressure adjusting valve and a hydraulic oil pressure control valve control, to increase or reduce, the supply pressure of the hydraulic oil to the high-speed hydraulic engaging element. A speed change controller at an initial stage maintains the shift valve, at the time of speed changing from a high-speed transmission train to a low-speed transmission train, in a condition in which the hydraulic oil is supplied to the high-speed hydraulic engaging element. The supply pressure of the hydraulic oil is reduced in this condition until the high-speed hydraulic engaging element gives rise to a slip. The supply pressure of the hydraulic oil is maintained in the condition of reduced pressure until the one-way clutch is engaged and thereafter the shift valve is changed over to a condition in which the hydraulic oil is discharged from the high-speed hydraulic engaging element.
摘要翻译： 变速器是与单向离合器协作建立低速传动系的类型。 在将液压油保持供给到低速液压接合元件的条件下，通过变速阀通过液压油供给建立高速传动系。 压力调节阀和液压油压力控制阀控制，增加或减少液压油对高速液压接合元件的供给压力。 初始阶段的变速控制器在从高速传动系向低速传动系变速的状态下保持变速阀在将液压油供给到高速液压 接合元件。 在这种情况下，液压油的供给压力降低，直到高速液压接合元件产生滑动。 液压油的供给压力保持在减压状态，直到单向离合器接合，然后将换档阀切换到液压油从高速液压接合元件排出的状态。
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13.发明授权Circuit element measuring apparatus and method for measuring a parameter of a DUT including a compensation network having an admittance characteristic 失效用于测量包括具有导纳特性的补偿网络的DUT的参数的电路元件测量装置和方法
公开(公告)号：US5216373A
公开(公告)日：1993-06-01
申请号：US952466
申请日：1992-09-28
申请人： Hideki Wakamatsu , Shinya Goto
发明人： Hideki Wakamatsu , Shinya Goto
IPC分类号： G01R27/28
CPC分类号： G01R27/28
摘要： A circuit element measuring apparatus for measuring a parameter of a device under test (DUT) includes a signal source, a voltmeter, a zero detection amplifier, and a compensation network all of which are coupled to the DUT by four shielded lines. The compensation network is also coupled to a range resistance. The compensation network provides two independent sets of correction data. One is based on the length of the shielded line and the other is based on the range resistance used. The parameter being measured can then be adjusted by the appropriate set of correction data to provide a more accurate measurement. A method of operating the circuit element measuring apparatus for measuring the parameter of the DUT by generating the two sets of correction data and adjusting the parameter accordingly.
摘要翻译： 用于测量被测器件（DUT）的参数的电路元件测量装置包括信号源，电压表，零检测放大器和补偿网络，所有这些都通过四条屏蔽线耦合到DUT。 补偿网络也耦合到范围电阻。 补偿网络提供两组独立的校正数据。 一个是基于屏蔽线的长度，另一个是基于所使用的范围电阻。 然后可以通过适当的校正数据集来调整被测量的参数以提供更准确的测量。 一种操作电路元件测量装置的方法，用于通过生成两组校正数据并相应地调整参数来测量DUT的参数。
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公开(公告)号：US07307430B2
公开(公告)日：2007-12-11
申请号：US11471789
申请日：2006-06-21
申请人： Koji Tokuno , Yoichi Kuboyama , Hideki Wakamatsu
发明人： Koji Tokuno , Yoichi Kuboyama , Hideki Wakamatsu
CPC分类号： G01R27/02
摘要： A method for finding the impedance of a device under test using an impedance measuring apparatus having a modem-type auto-balancing bridge, two or more measurement signals, each of which has a different phase with respect to the reference signals supplied to the modem inside said auto-balancing bridge, are applied to a device under test; the impedance of this device under test is measured when each of the measurement signals is applied to the device under test; and the impedance of this device under test is found using the above-mentioned phase and the impedance measurement value of each of these measurements.
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公开(公告)号：US6054867A
公开(公告)日：2000-04-25
申请号：US892960
申请日：1997-07-16
申请人： Hideki Wakamatsu
发明人： Hideki Wakamatsu
CPC分类号： G01R27/02
摘要： A method for stabilizing feedback loop in impedance measuring equipment involves determining a null loop transfer function of the impedance measuring device by utilizing multiple independent, known impedances. The phase characteristics of the null loop is measured for each multiple independent, known impedances. Based on the measured phase characteristics, the loop characteristic is determined with regard to impedances of arbitrary devices under test (DUTs). The best phase compensation amount is then computed for use over the entire range of DUTs.
摘要翻译： 用于稳定阻抗测量设备中的反馈回路的方法涉及通过利用多个独立的已知阻抗来确定阻抗测量装置的零环路传递函数。 针对每个多个独立的已知阻抗测量空回路的相位特性。 基于所测量的相位特性，关于被测设备（DUT）的阻抗确定环路特性。 然后计算最佳相位补偿量，以在DUT的整个范围内使用。
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公开(公告)号：US5666058A
公开(公告)日：1997-09-09
申请号：US579181
申请日：1995-12-27
申请人： Hideki Wakamatsu
发明人： Hideki Wakamatsu
CPC分类号： G01N27/023
摘要： A method is used which reduces measurement errors, especially of permittivity, which result when electromagnetic induction-type probes measure electrical properties of solutions. Part of the electromagnetic induction current, which the electromagnetic induction-type probe tries to induce in the test solution, flows in the stray capacitance, which is formed by the dielectric in the probe. This partial current reduces the current that is linked to the current detector transformer, and affects the measured value of the electrostatic capacity component, i.e., the permittivity, of the test solution. This phenomenon is modeled and is expressed by a distributed constant circuit which is simplified to a T-shaped 2-terminal pair equivalent circuit. A correction equation that corrects the errors due to the aforementioned currents is obtained by means of this simplified equivalent circuit, and the measurement errors are reduced. Co is the probe's stray capacitance and is evaluated by substituting the correction equation for the measured value of a standard solution. By this means, measurement errors can be reduced to 1/10 of their uncorrected value.
摘要翻译： 使用一种降低电磁感应型探头测量溶液电性能的测量误差，特别是介电常数的方法。 电磁感应型探针试图在测试溶液中诱发的电磁感应电流的一部分流入由探针中的电介质形成的寄生电容。 该部分电流降低与电流检测器变压器相关联的电流，并且影响测试溶液的静电电容分量的测量值，即介电常数。 这种现象被建模并由简化成T形的2端子对等效电路的分布常数电路表示。 通过这种简化的等效电路获得校正由于上述电流引起的误差的校正方程，并且减小了测量误差。 Co是探针的杂散电容，并通过用校正方程代替标准溶液的测量值进行评估。 通过这种方式，测量误差可以降低到+ E，其中1/10 + EE的未校正值。
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公开(公告)号：US4841228A
公开(公告)日：1989-06-20
申请号：US72070
申请日：1987-07-10
申请人： Hitoshi Noguchi , Hideki Wakamatsu
发明人： Hitoshi Noguchi , Hideki Wakamatsu
IPC分类号： G01R27/26
CPC分类号： G01R27/2694
摘要： Current passing through a capacitor being measured is combined with programmable portions of oppositely phased current, and means are provided for deriving voltages from said combined current that lie within a given range regardless of the capacitance of the capacitor under test. A phase detector determines the phase angle between the latter voltage and the voltage causing current flow through the capacitor. The means for deriving the out-of-phase current includes a plurality of programmable, current transducer having their primary windings connected in series, one end of each secondary winding being connected to one end of its primary winding, and switches respectively connected to the other under the secondary winding. The means for deriving the voltage referred includes an operational amplifier and switches for connecting a similar plurality of current transformers in series with the capacitor being measured as in the feedback of the amplifier.
摘要翻译： 通过所测量的电容器的电流与相位相控电流的可编程部分组合，并且提供用于从处于给定范围内的所述组合电流导出电压的装置，而与被测电容器的电容无关。 相位检测器确定后一电压和导致电流流过电容器的电压之间的相位角。 用于导出异相电流的装置包括多个可编程电流传感器，其初级绕组串联连接，每个次级绕组的一端连接到其初级绕组的一端，分别连接到另一端的开关 次级绕组下。 用于导出所提到的电压的装置包括运算放大器和开关，用于连接与正在测量的电容器类似的多个电流互感器，与放大器的反馈一样。
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公开(公告)号：US5565001A
公开(公告)日：1996-10-15
申请号：US285105
申请日：1994-08-03
CPC分类号： F16H61/0276 , Y10T477/6937 , Y10T477/69377
摘要： A control apparatus for a hydraulically operated vehicular transmission having a plurality of hydraulic engaging elements has an accumulator which is connected in parallel with a hydraulic engaging element for a low-speed transmission train and a back pressure generating source which generates a hydraulic oil pressure to be supplied to a back pressure chamber of the accumulator. The control apparatus includes a changeover valve which can be changed over between a first position in which the back pressure chamber of the accumulator and the back pressure generating source are brought into communication with each other and a second position in which the communication is cut off to lower a pressure in the back pressure chamber. The changeover valve is arranged to be changed over from the second position to the first position when a hydraulic oil pressure in the hydraulic engaging element for the low-speed transmission train has exceeded a predetermined pressure.
摘要翻译： 用于具有多个液压接合元件的液压操作车辆变速器的控制装置具有与用于低速传动系的液压接合元件和产生液压油压力的背压发生源并联连接的蓄能器 供给蓄能器的背压室。 所述控制装置包括切换阀，所述切换阀能够在蓄能器的背压室与所述背压发生源彼此连通的第一位置与所述连通被切断的第二位置之间切换成 降低背压室中的压力。 当低速传动系的液压接合元件的液压油压超过预定压力时，转换阀被布置成从第二位置切换到第一位置。
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公开(公告)号：US5505672A
公开(公告)日：1996-04-09
申请号：US285136
申请日：1994-08-03
CPC分类号： F16H61/068 , F16H59/24 , F16H59/44 , F16H59/72 , F16H59/78 , Y10T477/6895
摘要： In a control apparatus for a hydraulically operated vehicular transmission which has a plurality of hydraulic engaging elements, an orifice is disposed in an oil passage which is communicated with a hydraulic engaging element for a low-speed transmission train. The control apparatus has a bypass passage which bypasses the orifice, a control valve which can be switched between a communicated state in which the bypass passage is in communication and a cut-off state in which the communication of the bypass passage is cut off, and a control circuit which changes over the control valve to the communicated state under a predetermined condition at a time of switching from a running range to a neutral range.
摘要翻译： 在具有多个液压接合元件的液压操作车辆变速器的控制装置中，在油路中设置有与低速传动系的液压接合元件连通的油路。 所述控制装置具有绕过所述节流孔的旁路通路，能够在所述旁路通路连通的连通状态与所述旁通通路的通路被切断的切断状态之间切换的控制阀，以及 控制电路，在从运行范围切换到中立范围时，在规定条件下将控制阀切换到通信状态。
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公开(公告)号：US5409421A
公开(公告)日：1995-04-25
申请号：US252352
申请日：1994-06-01
CPC分类号： F16H61/067 , F16H61/08 , F16H2061/026 , F16H2061/0485 , F16H2061/0488 , F16H61/0437 , F16H61/065
摘要： A control apparatus for a hydraulically operated vehicular transmission has a plurality of hydraulic engaging elements including a first hydraulic engaging element which is kept engaged in a plurality of transmission trains. The control apparatus has an accumulator which is connected, via a branched oil passage, to a working oil passage which is communicated with the first hydraulic engaging element. It also has a control valve which is disposed in the branched oil passage and which can be moved between a first position in which an upstream portion of the branched oil passage on a side of the first hydraulic engaging element and a downstream portion of the branched oil passage on a side of the accumulator are brought into communication with each other and a second position in which the communication is shut off. It further has an oil discharge passage which is connected to a second hydraulic engaging element when the second hydraulic engaging element is disengaged. This oil discharge passage is arranged to be connected to the downstream portion of the branched oil passage in the second position of the control valve.
摘要翻译： 用于液压操作车辆变速器的控制装置具有多个液压接合元件，其包括保持接合在多个传动系中的第一液压接合元件。 控制装置具有经由分支油路连接到与第一液压接合元件连通的工作油路的蓄压器。 它还具有控制阀，该控制阀设置在分支油路中，并且能够在第一位置与第一液压啮合元件一侧的分支油路的上游部分与分支油的下游部分之间移动 在蓄能器的一侧上的通道彼此连通并且第二位置中的通信被切断。 另外还有一个排油通道，当第二液压啮合元件脱开时，它连接到第二液压啮合元件。 该排油通道设置成在控制阀的第二位置连接到分支油路的下游部分。
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