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公开(公告)号：US4573041A
公开(公告)日：1986-02-25
申请号：US587656
申请日：1984-03-08
申请人： Junji Kitagawa , Sigeyuki Akita , Kouichi Yamanoue
发明人： Junji Kitagawa , Sigeyuki Akita , Kouichi Yamanoue
CPC分类号： G08B25/06 , G08B26/002
摘要： An electric wiring system has a plurality of terminal units, a plurality of sensors connected to the terminal units by signal input lines, and a central control unit connected to the terminal units by a pair of common power supply lines, which receive signals from the sensors. The central control unit has a reference signal generator circuit which repetitively generates a reference signal composed of a train of pulses, a predetermined number of which are assigned to each of the sensors, a modulator circuit for applying the reference signal to the power supply lines, a demodulator circuit for picking up a composite signal generated by the terminal unit from the power supply line, and a control circuit for detecting abnormal and normal signals of the sensors and breakage of the power supply lines and signal input lines based on the presence and absence of high-frequency pulses in the composite signal, thus indicating sensor and line conditions. Each of the terminal units has a demodulator circuit for picking up the reference signal from the power supply lines, a composite signal generator circuit for generating the composite signal by adding the high-frequency pulses at pulse positions corresponding to the pulses of the reference signal assigned to the sensors, dependent on the abnormal and normal signals of the sensors and breakage of the signal input lines, and a modulator circuit for applying the composite signal to the power supply lines.
摘要翻译： 电气接线系统具有多个终端单元，通过信号输入线连接到终端单元的多个传感器以及通过一对公共电源线连接到终端单元的中央控制单元，其接收来自传感器的信号 。 中央控制单元具有参考信号发生器电路，其重复地生成由一串脉冲组成的参考信号，预定数量分配给每个传感器，用于将参考信号施加到电源线的调制器电路， 解调器电路，用于从电源线拾取由终端单元产生的复合信号;以及控制电路，用于检测传感器的异常和正常信号以及基于有无存在的电源线和信号输入线的断开 的复合信号中的高频脉冲，从而指示传感器和线路状况。 每个终端单元具有用于从电源线拾取参考信号的解调器电路，复合信号发生器电路，用于通过将与分配的参考信号的脉冲相对应的脉冲位置处的高频脉冲相加来产生复合信号 依赖于传感器的异常和正常信号以及信号输入线路的断线，以及用于将复合信号施加到电源线的调制器电路。
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公开(公告)号：US4110740A
公开(公告)日：1978-08-29
申请号：US764458
申请日：1977-01-31
申请人： Sigeyuki Akita , Junji Kitagawa
发明人： Sigeyuki Akita , Junji Kitagawa
CPC分类号： G01F23/243
摘要： A liquid level detecting apparatus for detecting the level of a conductive liquid, comprises a pair of electrodes which are either connected with or disconnected from each other depending on the liquid level, an oscillation circuit which is variable in the state of its oscillation signal in response to the variation in impedance between the pair of electrodes and applies between the pair of electrodes an AC signal in synchronism with the oscillation signal, and a switching circuit which detects the liquid level in response to the oscillation signal, whereby dissolution of ions from the electrode into the liquid is prevented.
摘要翻译： 用于检测导电液体的液位的液位检测装置包括一对根据液位彼此连接或断开的电极，响应于其振荡信号的状态可变的振荡电路 对于一对电极之间的阻抗的变化，并且在一对电极之间施加与振荡信号同步的AC信号，以及开关电路，其响应于振荡信号检测液位，由此离子从电极的溶解 进入液体被阻止。
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3.发明授权Apparatus responsive to the amount of refrigerant flow in a refrigerant flow in a refrigerant circulating system 失效对制冷剂循环系统中的制冷剂流中的制冷剂流量的响应的装置
公开(公告)号：US4344293A
公开(公告)日：1982-08-17
申请号：US237262
申请日：1981-02-23
CPC分类号： G01F23/263 , B60H1/3225 , F25B49/005 , G01D5/2405 , G01F23/266 , F25B2500/222
摘要： An apparatus responsive to the amount of refrigerant flow in a refrigerant circulating system includes a sensing capacitor mounted in a refrigerant passage, the capacitance of the sensing capacitor being varied depending on a change in the dielectric constant of the refrigerant which in turn being dependent on the amount of the refrigerant. The sensing capacitor forms an element of a resistance-capacitance oscillatory circuit and it also forms a ring oscillator together with another capacitor and a plurality of inverters and resistors. The oscillation frequency of the ring oscillator is detected to determine the amount of the refrigerant flowing through the refrigerant passage.
摘要翻译： 一种响应于制冷剂循环系统中的制冷剂流量的装置包括安装在制冷剂通道中的感测电容器，感测电容器的电容根据制冷剂的介电常数的变化而变化，制冷剂的介电常数依赖于 制冷剂量。 感测电容器形成电阻电容振荡电路的元件，并且还与另一个电容器和多个反相器和电阻器一起形成环形振荡器。 检测环形振荡器的振荡频率，以确定流过制冷剂通道的制冷剂的量。
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公开(公告)号：US4144403A
公开(公告)日：1979-03-13
申请号：US702629
申请日：1976-07-06
申请人： Sigeyuki Akita , Junji Kitagawa
发明人： Sigeyuki Akita , Junji Kitagawa
CPC分类号： H01B17/26 , H01R13/565
摘要： An electric circuit member in a housing has lead wires which protrude out an end of the housing. A portion of the housing is provided with external threading for mounting and dismounting of the whole assembly. In order to prevent twisting of the wires as assembly is mounted and dismounted, the assembly may be manipulated to let the electric circuit member and its lead wires slip relative to the threaded housing portion. Three variations are shown.
摘要翻译： 壳体中的电路构件具有从壳体的端部突出的引线。 壳体的一部分设置有用于安装和拆卸整个组件的外部螺纹。 为了防止组装被安装和拆卸时的电线扭转，可以操纵组件以使电路元件及其导线相对于螺纹壳体部分滑动。 显示了三个变体。
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公开(公告)号：US4373388A
公开(公告)日：1983-02-15
申请号：US212275
申请日：1980-12-03
申请人： Sotoo Kitamura , Sigeyuki Akita , Junji Kitagawa
发明人： Sotoo Kitamura , Sigeyuki Akita , Junji Kitagawa
IPC分类号： G01F23/18
CPC分类号： G01F23/18
摘要： A liquid level monitoring device includes a casing arranged to be immersed in liquid stored within a container, the casing having first and second ports and being integrally provided with a support member to be attached to the inner wall of the container. A flexible diaphragm is assembled to form first and second chambers in the casing, the first chamber being communicated with the atmospheric air through the first port from which an elongated tube extends into the exterior of the container, and the second chamber permitting the immerse of liquid through the second port thereinto such that an amount of the atmospheric air is compressed within the second chamber in dependence upon an amount of the stored liquid to flex the diaphragm by a pressure difference between the chambers. A pressure transducer is provided to detect the rate of flexure of the diaphragm so as to generate an electric signal indicative of the liquid surface level from a control circuit. An indicator is responsive to the electric signal from the control circuit to indicate the stored liquid surface level.
摘要翻译： 液位监视装置包括：壳体，被布置成浸入存储在容器内的液体中，所述壳体具有第一和第二端口，并且一体地设置有要附接到容器的内壁的支撑构件。 柔性隔膜被组装以在壳体中形成第一和第二室，第一室通过第一端口与大气连通，细长管从该第一端口延伸到容器的外部，并且第二室允许浸入液体 通过其中的第二端口使得大量空气的量在第二室内被压缩，这取决于存储的液体的量，以通过室之间的压差使膜片弯曲。 提供压力传感器以检测隔膜的弯曲速率，以产生指示来自控制电路的液面表面电平的电信号。 指示器响应于来自控制电路的电信号以指示所存储的液体表面水平。
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公开(公告)号：US4328706A
公开(公告)日：1982-05-11
申请号：US149698
申请日：1980-05-14
申请人： Sigeyuki Akita , Junji Kitagawa
发明人： Sigeyuki Akita , Junji Kitagawa
摘要： Pressure changes in the engine case of an automobile are sensed to compute and display the engine rpm irrespective of the types of engines. A pressure sensing element is mounted on the oil filler port in the engine cylinder head cover by means of a mounting member made of an elastic material.
摘要翻译： 感测到汽车的发动机情况下的压力变化以计算和显示发动机转速，而不管发动机的类型如何。 压力感测元件通过由弹性材料制成的安装构件安装在发动机气缸盖罩的加油口上。
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公开(公告)号：US4047149A
公开(公告)日：1977-09-06
申请号：US730718
申请日：1976-10-08
申请人： Sigeyuki Akita , Junji Kitagawa
发明人： Sigeyuki Akita , Junji Kitagawa
CPC分类号： F16D66/022 , B60T17/22
摘要： The inclusion of air into the brake system or the presence of a clearance between the brake shoes and the brake drums which is greater than a predetermined value is detected from the fact that the residual stroke of the brake pedal is increased each time the brake pedal of a vehicle is depressed. A brake sensor produces a frequency corresponding to the displacement of the brake pedal, and first and second displacement detecting circuits respectively detect the maximum displacement during first and second brake pedal movements. A comparison circuit compares the maximum displacements detected by the detecting circuits and produces a signal corresponding to the difference between the maximum displacements and a display circuit displays the signal from the comparison circuit to give a warning.
摘要翻译： 从刹车踏板的制动踏板的制动踏板的制动踏板的制动踏板的制动踏板的制动踏板的制动踏板的制动踏板 一辆车沮丧 制动传感器产生对应于制动踏板的位移的频率，第一和第二位移检测电路分别检测在第一和第二制动踏板运动期间的最大位移。 比较电路比较由检测电路检测到的最大位移，并产生与最大位移之间的差相对应的信号，并且显示电路显示来自比较电路的信号以发出警告。
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公开(公告)号：US4164706A
公开(公告)日：1979-08-14
申请号：US828106
申请日：1977-08-26
申请人： Sigeyuki Akita , Junji Kitagawa
发明人： Sigeyuki Akita , Junji Kitagawa
CPC分类号： F02P7/067 , G01D5/2053 , H03K17/9512 , H03K17/9535
摘要： A rotation detecting apparatus detects the angular position of an engine by rotating from the engine an electrically conductive rotating member having a plurality of equally spaced projections and notches formed on the periphery thereof and arranging a detector to face the rotating member and detect its projections and notches. The detector incorporates a self-running blocking oscillator circuit comprising a transformer and a field-effect transistor. With the engine rotating, the oscillator circuit oscillates when one of the notches on the rotating member is opposite to the detector, whereas when one of the projections on the rotating member is opposite to the detector the oscillator circuit does not oscillate due to the eddy current loss caused in the projection. Another circuit is connected to the oscillator circuit, and this circuit generates a pulse signal whose signal level changes in synchronism with a change in the oscillation condition of the oscillator circuit. This signal level change is indicative of a predetermined angular position of the engine.
摘要翻译： 旋转检测装置通过从发动机旋转而检测发动机的角位置，该导电旋转构件具有形成在其周边上的多个等间隔的突起和切口，并且布置检测器以面对旋转构件并检测其突起和凹口 。 该检测器包括一个包括变压器和场效应晶体管的自运行阻塞振荡器电路。 当发动机旋转时，当旋转构件上的一个切口与检测器相反时，振荡器电路振荡，而当旋转构件上的一个突起与检测器相反时，振荡器电路不会由于涡流而振荡 投影造成的损失。 另一电路连接到振荡电路，该电路产生脉冲信号，其信号电平与振荡电路的振荡条件的变化同步变化。 该信号电平变化表示发动机的预定角度位置。
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公开(公告)号：US4035789A
公开(公告)日：1977-07-12
申请号：US580754
申请日：1975-05-27
申请人： Sigeyuki Akita , Junji Kitagawa
发明人： Sigeyuki Akita , Junji Kitagawa
摘要： A liquid level sensing system comprises a permanent magnet mounted in a cylindrical supporting case disposed in a housing and provided with a resistance plate at one end thereof, a reed switch arranged parallel to the permanent magnet and electromagnetic means including an iron core and a coil arranged above the supporting case and on the same axis as the permanent magnet. When the level of the engine oil goes down, the reed switch and the electromagnetic means cause the permanent magnet to vertically vibrate in the supporting case in the axial direction thereof thus causing for example a lamp to flash on and off and indicate the existence of an irregularity. With the construction described above, the system of this invention is capable of sensing an abnormal deterioration of the engine oil in addition to the sensing of the engine oil level.
摘要翻译： 液面感测系统包括安装在壳体中的圆柱形支撑壳体中的永久磁铁，其一端设有电阻板，平行于永久磁铁布置的舌簧开关和包括铁芯和线圈的电磁装置， 在支撑壳体上方和与永磁体相同的轴线上。 当发动机油的油位下降时，簧片开关和电磁装置使得永磁体在支撑壳体中沿其轴向方向垂直振动，从而使例如灯闪烁开和关，并指示存在 不规则 利用上述结构，本发明的系统除了感测发动机机油油位之外还能够感测到发动机油的异常劣化。
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公开(公告)号：US4028620A
公开(公告)日：1977-06-07
申请号：US621233
申请日：1975-10-09
申请人： Junji Kitagawa , Sigeyuki Akita
发明人： Junji Kitagawa , Sigeyuki Akita
CPC分类号： F02D41/28 , G08C19/025 , Y10T307/461
摘要： An electrical wiring system comprising an instruction unit including a switch mechanism having a plurality of contacts and an output unit connected to the instruction unit through a supply line and a signal line for generating a driving output corresponding to closed one of the contacts in the instruction unit. The instruction unit generates and sends to the output unit through the signal line a voltage signal corresponding to the closed one of the plurality of contacts, and the output unit identifies the closed contact according to the voltage signal received through the signal line and generates an output signal at one of its plurality of output terminals corresponding to the closed contact.
摘要翻译： 一种电气布线系统，包括指令单元，该指令单元包括具有多个触点的开关机构和通过电源线连接到指令单元的输出单元和用于产生与指令单元中的闭合触点相对应的驱动输出的信号线 。 指令单元通过信号线生成与输出单元相对应的多个触点中的闭合电压的输出单元，输出单元根据通过信号线接收的电压信号来识别闭合触点，并产生输出 信号在其多个输出端中的一个对应于闭合触点。
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