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公开(公告)号：US4121457A
公开(公告)日：1978-10-24
申请号：US795909
申请日：1977-05-11
申请人： Shuzo Yoshida , Sigeyuki Akita , Sotoo Kitamura
发明人： Shuzo Yoshida , Sigeyuki Akita , Sotoo Kitamura
IPC分类号： G01F23/24 , G01F23/292 , G01F23/00 , G08B21/00
CPC分类号： G01F23/2921 , G01F23/241
摘要： A liquid sensor for sensing a level of liquid contained in a tank as well as the presence or absence of water remaining at the bottom of the tank is disclosed. The liquid sensor comprises a housing mounted at the bottom of the tank, a liquid level detecting element mounted on the housing, a pair of electrodes arranged at the bottom of the tank to detect water remaining at the bottom of the tank and an indicator operated in response to signals developed by the liquid level detecting element and the pair of electrodes.
摘要翻译： 公开了一种液体传感器，用于感测罐中容纳的液体水平以及存在于罐底部的水的存在或不存在。 液体传感器包括安装在罐的底部的壳体，安装在壳体上的液面检测元件，布置在罐底部的一对电极，用于检测储存在罐底部的水和指示器 响应由液位检测元件和一对电极产生的信号。
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公开(公告)号：US4080828A
公开(公告)日：1978-03-28
申请号：US778583
申请日：1977-03-17
申请人： Sigeyuki Akita , Shuzo Yoshida
发明人： Sigeyuki Akita , Shuzo Yoshida
CPC分类号： G01F23/68
摘要： The oscillation frequency of the output signal of a ring oscillator is changed in response to a change in the relative position between the coil in the ring oscillator and a float including a conductive member and vertically movable in accordance with changes in the level of a liquid to be measured. The amount of electric power consumed by the ring oscillator itself is changed in accordance with changes in the oscillation frequency of the oscillator output signal. The power consumption of the ring oscillator is detected in accordance with the voltage across a resistor inserted in the power line from the electric power source to the ring oscillator, so that when this voltage attains a predetermined value, an indicator designed to indicate that the liquid level has attained a predetermined level is brought into operation.
摘要翻译： 环形振荡器的输出信号的振荡频率响应于环形振荡器中的线圈与包括导电构件的浮子之间的相对位置的变化而变化，并且可以根据液体水平的变化而垂直移动至 被测量。 环形振荡器本身消耗的电力量根据振荡器输出信号的振荡频率的变化而改变。 根据插入到从电源到环形振荡器的电力线中的电阻器两端的电压来检测环形振荡器的功率消耗，使得当该电压达到预定值时，设计用于指示液体 水平达到预定水平已投入运行。
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公开(公告)号：US4386386A
公开(公告)日：1983-05-31
申请号：US255273
申请日：1981-04-17
申请人： Sigeyuki Akita
发明人： Sigeyuki Akita
CPC分类号： G01D5/2417 , G01B7/001 , G01L1/042 , G01L1/142
摘要： A capacitor type displacement or load sensor includes a first electrode constituted by an electrically conductive coiled spring capable of expansion and contraction and a second electrode positioned to face the first electrode without making contact therewith. The second electrode is constituted by an electrically conductive coiled spring or a cylindrical electric conductor. The sensor is constructed such that capacitance between the first and second electrodes varies with a change of a gap between the first and second electrodes or an opposing area of the first and second electrodes caused by the relative displacement occurring therebetween.
摘要翻译： 电容器型位移或负载传感器包括由能够膨胀和收缩的导电线圈弹簧构成的第一电极和定位成与第一电极相对而不与其接触的第二电极。 第二电极由导电螺旋弹簧或圆柱形电导体构成。 传感器被构造成使得第一和第二电极之间的电容随着第一和第二电极之间的间隙的变化或第一和第二电极的相对的区域之间的相对位移而变化。
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公开(公告)号：US4354219A
公开(公告)日：1982-10-12
申请号：US249863
申请日：1981-04-01
申请人： Sigeyuki Akita
发明人： Sigeyuki Akita
CPC分类号： G01R27/2605
摘要： A capacitance sensing device for detecting the amount of material flowing through a passage includes layers of disk-shaped insulating substrates having electrode films formed on surfaces thereof facing each other, and the insulating substrates are supported by an insulating support member as a unit and spaced from each other. The electrode films are alternately connected by a pair of conductors to form a capacitor. Electric circuit elements, forming a detection circuit which is connected to the pair of conductors and which detects a change in capacitance of the capacitor depending on the amount of material flowing through the spaces between the electrode films, are formed on the outer surface of an outermost one of the substrates in a form of a monolithic circuit or a hybrid circuit.
摘要翻译： 用于检测流过通道的材料量的电容感测装置包括具有彼此面对的在其表面上形成有电极膜的盘形绝缘基板层，绝缘基板由作为一个单元的绝缘支撑构件支撑， 彼此。 电极膜通过一对导体交替连接以形成电容器。 电路元件形成检测电路，该检测电路与一对导体连接，并根据流过电极膜之间的空间的材料量来检测电容器的电容变化。 单片电路或混合电路形式的基板之一。
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公开(公告)号：US4144485A
公开(公告)日：1979-03-13
申请号：US801251
申请日：1977-05-27
申请人： Sigeyuki Akita
发明人： Sigeyuki Akita
CPC分类号： H01F38/14 , H01F2038/143 , Y10T307/911
摘要： A contactless connector circuit for connecting two or more conductors with one another by means of reactance coupling, e.g., inductance coupling or capacitance coupling and transmitting electrical signals from one conductor to another by alternating current without contact between the conductors.
摘要翻译： 一种非接触式连接器电路，用于通过电抗耦合（例如电感耦合或电容耦合）将两个或多个导体彼此连接，并且通过不导体之间的接触的交流电将电信号从一个导体传输到另一个导体。
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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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公开(公告)号：US4442512A
公开(公告)日：1984-04-10
申请号：US255275
申请日：1981-04-17
申请人： Masao Kodera , Sigeyuki Akita
发明人： Masao Kodera , Sigeyuki Akita
IPC分类号： B60G17/0165 , G01S15/93
CPC分类号： G01S15/931 , B60G17/0165 , G01S2015/938 , Y10S181/40 , Y10S367/909
摘要： An ultrasonic wave transmitter and receiver adapted to be mounted on the rear portion of a vehicle to detect the distance between the rear end of the vehicle and any obstruction located at the rear side of the vehicle. The ultrasonic wave transmitter and receiver includes an ultrasonic transducer attached to a lower part of the vehicle at a portion spaced from the rear end of the vehicle in the forward direction of the vehicle by a predetermined distance, a horn opening rearwardly from the vehicle and a wave guide tube through which the horn and the ultrasonic transducer are coupled to each other. The distance between the ultrasonic transducer and the rear end of the vehicle is selected to correspond to a time length which is long enough to sufficiently attenuate the residual oscillation of the ultrasonic transducer.
摘要翻译： 一种适于安装在车辆后部的超声波发射器和接收器，用于检测车辆后端与位于车辆后侧的任何障碍物之间的距离。 超声波发射器和接收器包括：超声波传感器，其安装在车辆下部的与车辆后端间隔开距离车辆前方一定距离的部分;从车辆向后方的喇叭口; 波导管，喇叭和超声波换能器通过它们彼此耦合。 选择超声波换能器与车辆后端之间的距离，以对应于足够长以充分衰减超声换能器的残余振荡的时间长度。
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8.发明授权
公开(公告)号：US4405896A
公开(公告)日：1983-09-20
申请号：US319679
申请日：1981-11-09
申请人： Sigeyuki Akita
发明人： Sigeyuki Akita
CPC分类号： G01P3/488 , G01D5/204 , G01D5/2451
摘要： A rotation detecting apparatus includes a transformer consisting of a primary coil disposed to be energized by an energizing source and two secondary coils connected in opposite polarity to each other on the longitudinal sides of the primary coil. The magnetic coupling of the transformer is changed in response to the rotation of a rotating body and this changes the phase of the composite voltage signal of the secondary coils. By virtue of this construction, not only the rotation of the rotating body can be detected at low rotational speeds, but also the rotation can be detected accurately without being affected by the ambient temperature.
摘要翻译： 旋转检测装置包括由初级线圈组成的变压器，所述初级线圈设置成由激励源激励，并且在初级线圈的纵向侧面上彼此相反极性地连接两个次级线圈。 变压器的磁耦合响应于旋转体的旋转而改变，并且这改变了次级线圈的复合电压信号的相位。 通过这种结构，不仅可以在低转速下检测旋转体的旋转，而且可以精确地检测旋转，而不受环境温度的影响。
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9.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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