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公开(公告)号：US20020189329A1
公开(公告)日：2002-12-19
申请号：US10163503
申请日：2002-06-07
发明人： Willi Wimmer
IPC分类号： G01N005/02 , G01N025/56
CPC分类号： B60S1/0829 , B60S1/0822 , B60S1/0877 , G01N27/223
摘要： A device for determining moisture has an LC-oscillating circuit (1) as a transducer and an oscillator (2) for exciting the oscillating circuit (1). Further, the device for determining moisture has a tuning device (3) for frequency-wise tuning the oscillator (2) and a measuring and evaluation circuit (4) to determine an attenuation condition of the oscillator (2) and to provide a signal that is proportional to a degree of moisture at the transducer (1). The transducer (1) and the oscillator (2) are coupled in a contact-free manner.
摘要翻译： 用于确定湿度的装置具有作为换能器的LC振荡电路（1）和用于激励振荡电路（1）的振荡器（2）。 此外，用于确定湿度的装置具有用于频率调谐振荡器（2）的调谐装置（3）和用于确定振荡器（2）的衰减条件的测量和评估电路（4），并提供一个信号， 与换能器（1）处的湿度成正比。 换能器（1）和振荡器（2）以无接触的方式耦合。
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公开(公告)号：US5801307A
公开(公告)日：1998-09-01
申请号：US782194
申请日：1997-01-10
申请人： Yishay Netzer
发明人： Yishay Netzer
CPC分类号： B60S1/0825 , B32B17/10036 , B32B17/10174 , B60S1/0822 , B60S1/0829 , G01N27/223 , G01N27/226 , B60S1/0877 , H03K2217/960775
摘要： A differential capacitive moisture sensor, relying for its operation on the time-varying couplings in two moisture-sensing regions to provide indication of presence of moisture, with selectivity of sensing surface provided by a shielding electrode, and with temperature information provided by a simultaneously-fabricated resistive temperature sensor. Various electrode connections and sensor electronics may be used. An improved differential capacitive moisture sensor has equal dry capacitances, with unequal moisture sensitivities, for providing a single-polarity output signal. An ice detection method and apparatus is also provided.
摘要翻译： 一种差分电容式水分传感器，其依赖于在两个湿度感测区域中随时间变化的耦合的操作，以提供湿气存在的指示，以及由屏蔽电极提供的感测表面的选择性，以及由同时提供的温度信息， 制造电阻温度传感器。 可以使用各种电极连接和传感器电子器件。 改进的差分电容式湿度传感器具有相等的干电容，具有不相等的湿度敏感度，用于提供单极性输出信号。 还提供了一种冰检测方法和装置。
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公开(公告)号：US4827198A
公开(公告)日：1989-05-02
申请号：US159533
申请日：1988-02-09
申请人： Donald L. Mueller , Glen A. Nyberg
发明人： Donald L. Mueller , Glen A. Nyberg
CPC分类号： B32B17/10174 , B32B17/10036 , B32B17/10761 , B60S1/0822 , B60S1/0825 , B60S1/0829 , B60S1/0877 , Y10S15/15 , Y10S318/02
摘要： A pair of outer conducting members on the outside of a windshield are separated by a long common insulating border defining a border resistance in parallel with a first capacitance. Each of the outer conducting members is capacitively coupled through a layer of the windshield to an inner conducting member to form coupling capacitances in series with the combination of the border resistance and first capacitance. The preceding elements form a timing circuit for an oscillator, the timing circuit having an equivalent capacitance varying with the border resistance. When water droplets bridge the border of the outer conducting members, the border resistance decreases from infinity to change the equivalent capacitance of the timing circuit and thus the frequency of the oscillator circuit; and this change is detected to modify wiper operation.
摘要翻译： 在挡风玻璃外侧上的一对外部导电构件由限定与第一电容并联的边界电阻的长公共绝缘边界隔开。 每个外部导电构件通过挡风玻璃层电容耦合到内部导电构件以形成与边界电阻和第一电容的组合串联的耦合电容。 前述元件形成用于振荡器的定时电路，定时电路具有随着边界电阻而变化的等效电容。 当水滴桥接外部导电构件的边界时，边界电阻从无穷大减小，以改变定时电路的等效电容，从而改变振荡器电路的频率; 并检测到此更改以修改刮水器操作。
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公开(公告)号：US07263875B2
公开(公告)日：2007-09-04
申请号：US11503615
申请日：2006-08-14
申请人： Allan Rex Hawk , Kwaku Koi Koram , Shelby Chun
发明人： Allan Rex Hawk , Kwaku Koi Koram , Shelby Chun
IPC分类号： G01N5/02
CPC分类号： B60S1/0822 , B32B17/10036 , B32B17/10293 , B60S1/0829 , B60S1/0877
摘要： A moisture detection system includes a moisture detector having a first electrical conductor, a first substrate having the first electrical conductor disposed on one surface thereof, a spacing layer coupled to the other surface of the first substrate, a second substrate having one surface thereof coupled to a surface of the spacing layer opposite the first substrate, and an electrically conductive layer disposed on a surface of a substrate opposite the spacing layer. A second electrical conductor can be disposed on the same surface of the first substrate as the first electrical conductor. The first and second electrical conductors can define interdigitated fingers. Circuitry is provided for stimulating the first electrical conductor with a predetermined frequency oscillator signal and for outputting a control signal that is responsive to the response of the first electrical conductor to the oscillator signal and an amount of moisture adjacent the first electrical conductor.
摘要翻译： 水分检测系统包括具有第一电导体的水分检测器，具有设置在其一个表面上的第一电导体的第一衬底，与第一衬底的另一个表面耦合的间隔层，第二衬底，其一个表面耦合到 间隔层的与第一基板相对的表面，以及设置在与间隔层相对的基板的表面上的导电层。 第二电导体可以设置在与第一电导体相同的第一基板的表面上。 第一和第二电导体可以限定交叉指状物。 提供电路，用于以预定的频率振荡器信号刺激第一电导体，并且用于输出响应于第一电导体对振荡器信号的响应的控制信号和与第一电导体相邻的水分量。
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公开(公告)号：US4748390A
公开(公告)日：1988-05-31
申请号：US777432
申请日：1985-09-18
申请人： Akihiro Okushima , Shinichi Shoji
发明人： Akihiro Okushima , Shinichi Shoji
IPC分类号： B60S1/08 , H03K17/955
CPC分类号： H03K17/955 , B60S1/0822 , B60S1/0829 , B60S1/0874 , B60S1/0885 , Y10S15/15
摘要： A detection device comprising a detection wall member for sensing a predetermined existence of an object adjacent to the device, detection electrode member including a detection electrode and a ground electrode which are disposed in the detection wall member, oscillation circuit member including a resonance circuit associated with a capacitance between the detection and ground electrodes, and detection circuit member for detecting change of oscillation of the oscillation circuit member by change of the capacitance between the electrodes so that the predetermined existence of the object adjacent to the detection wall member is detected by the device.
摘要翻译： 一种检测装置，包括用于感测与所述装置相邻的物体的预定存在的检测壁构件，检测电极构件，包括设置在所述检测壁构件中的检测电极和接地电极，所述振荡电路构件包括与 检测电极和接地电极之间的电容，以及用于通过改变电极之间的电容来检测振荡电路部件的振荡的变化的检测电路部件，从而通过该装置检测与检测壁部件相邻的物体的预定存在 。
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公开(公告)号：US4710878A
公开(公告)日：1987-12-01
申请号：US814801
申请日：1985-12-30
申请人： Motomi Iyoda
发明人： Motomi Iyoda
CPC分类号： B60S1/0822 , B60S1/0818 , B60S1/0829 , Y10S15/15 , Y10S318/02
摘要： The present invention relates to an apparatus and a method for controlling a wiper which detects the amount of rain positioned on a rain sensor regardless of the wiping speed of wipers and which smoothly moves the wipers at different wiping speeds in accordance with the detected amount of rain. The apparatus for controlling the wiper includes the rain sensor, a first comparator, an actuator, a second comparator, a timer, a memory and a changing device. The rain sensor is located on an exterior surface of a front windshield of a vehicle and detects the amount of rain which is positioned on the rain sensor. The wiper wipes off an exterior surface of the front windshield and moves from and returns to an initial position.
摘要翻译： 本发明涉及一种用于控制刮水器的装置和方法，其检测雨水传感器上的雨量，而不考虑擦拭器的擦拭速度，并且根据检测到的雨量平滑地以不同的擦拭速度移动擦拭器 。 用于控制刮水器的装置包括雨水传感器，第一比较器，致动器，第二比较器，定时器，存储器和更换装置。 雨水传感器位于车辆前挡风玻璃的外表面上，并检测位于雨水传感器上的雨量。 刮水器擦拭前挡风玻璃的外表面，并移动并返回到初始位置。
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公开(公告)号：US4554493A
公开(公告)日：1985-11-19
申请号：US584716
申请日：1984-02-29
申请人： Howard L. Armstrong
发明人： Howard L. Armstrong
CPC分类号： B60S1/0822 , B60S1/0829 , Y10S318/02
摘要： An apparatus for automatic activation and control of windshield wipers in response to moisture accumulation at the exterior surface of the windshield, including a pair of thin wires sandwiched within the windshield and positioned below the surface of the windshield to be cleared by the windshield wipers. The wires provide variable capacitance to a detection circuit, based on the amount of water occurring at the windshield surface. Activating circuitry is coupled to the detecting circuitry and wiper motor for initiating wiper action when capacitance measurement exceeds a predetermined reference standard.
摘要翻译： 一种用于响应于挡风玻璃外表面处的水分累积而自动启动和控制挡风玻璃刮水器的装置，包括夹在挡风玻璃内并位于挡风玻璃表面下方的一对细金属丝，以被挡风玻璃刮水器清除。 根据在挡风玻璃表面发生的水量，电线为检测电路提供可变电容。 当电容测量超过预定参考标准时，激活电路耦合到检测电路和擦拭器电机，用于启动刮水器动作。
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公开(公告)号：US20120286813A1
公开(公告)日：2012-11-15
申请号：US13106172
申请日：2011-05-12
IPC分类号： G01R27/26
CPC分类号： B60S1/0829 , G01D5/24 , G01D5/2405 , G01N27/223
摘要： A system, controller, and method for detecting moisture on a windshield that uses an isolated electrode coupled to a windshield. The isolated electrode is configured to exhibit an electrical impedance indicative of moisture present on a surface the windshield. The controller is configured to determine an electrode impedance value corresponding to the electrical impedance exhibited by the isolated electrode for detecting moisture on the windshield. By using an isolated electrode, the system is simpler and less expensive than other systems that have at least one electrode providing a return path for another electrode. Also, a way to use the isolated electrode for both detecting moisture on the windshield, and heating the windshield is described.
摘要翻译： 一种用于检测挡风玻璃上的湿气的系统，控制器和方法，其使用耦合到挡风玻璃的隔离电极。 隔离电极被配置为表现出指示挡风玻璃表面上的水分的电阻抗。 控制器被配置为确定对应于用于检测挡风玻璃上的水分的隔离电极所呈现的电阻抗的电极阻抗值。 通过使用隔离电极，该系统比具有至少一个电极为另一电极提供返回路径的其它系统更简单且更便宜。 此外，描述了使用隔离电极来检测挡风玻璃上的湿气以及加热挡风玻璃的方法。
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公开(公告)号：US07204130B2
公开(公告)日：2007-04-17
申请号：US10963172
申请日：2004-10-11
申请人： Kwaku K. Koram , Allen R. Hawk , Shelby Chun
发明人： Kwaku K. Koram , Allen R. Hawk , Shelby Chun
IPC分类号： G01N5/02
CPC分类号： B60S1/0822 , B32B17/10036 , B32B17/10174 , B32B17/10376 , B32B17/10761 , B60S1/0829 , B60S1/0877 , B60S1/50 , G01F23/261 , G01N27/223
摘要： A moisture detector can include a first elongated conductor disposed on a substrate. The first conductor can define a zigzag path between the opposite ends thereof. A second conductor can also be disposed on the substrate at least partially surrounding the first conductor. The second conductor can define between opposite ends thereof a zigzag path having a portion thereof that is positioned in substantially spaced parallel relation with the zigzag path of the first conductor along the sides thereof. A power conductor disposed on the substrate can be electrically connected to the first conductor intermediate the ends thereof via a gap defined between the ends of the second conductor. Ground conductors disposed on the substrate can be electrically connected to the ends of the second conductor. A temperature sensor can be utilized to correct the response of the moisture detector for temperature.
摘要翻译： 水分检测器可以包括设置在基板上的第一细长导体。 第一导体可以在其相对端之间限定锯齿形路径。 第二导体也可以至少部分地围绕第一导体设置在衬底上。 第二导体可以在其相对端之间限定锯齿形路径，该锯齿形路径具有其一部分，其位于与第一导体的Zigzag路径基本间隔开的平行关系。 设置在基板上的电力导体可以经由限定在第二导体的端部之间的间隙电连接到位于其端部之间的第一导体。 设置在基板上的接地导体可以电连接到第二导体的端部。 温度传感器可用于校正湿度检测器对温度的响应。
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公开(公告)号：US06802205B2
公开(公告)日：2004-10-12
申请号：US10308670
申请日：2002-12-03
IPC分类号： G01N502
CPC分类号： B60S1/0822 , B32B17/10036 , B32B17/10293 , B60S1/0829 , B60S1/0877 , G01F23/261 , G01N27/223
摘要： A moisture detection system includes an electrical conductor disposed on a surface of a substrate. The electrical conductor has a resonant frequency that varies as a function of an amount of moisture present adjacent the electrical conductor. An oscillator outputs an oscillator signal at a predetermined amplitude and a predetermined frequency. A resonator circuit is coupled to the electrical conductor and is responsive to the oscillator signal and the resonant frequency of the electrical conductor for outputting a resonator signal having an amplitude related to the resonant frequency of the electrical conductor. A filter circuit rectifies and filters the resonator signal and provides it to an analog-to-digital converter which outputs a digital signal related to the rectified and filtered resonator signal. A controller is responsive to the digital signal for causing a system associated with the substrate to operate in accordance with the digital signal.
摘要翻译： 水分检测系统包括设置在基板的表面上的电导体。 电导体具有作为电导体附近存在的水分的量的函数而变化的谐振频率。 振荡器以预定的振幅和预定频率输出振荡器信号。 谐振器电路耦合到电导体，并响应于振荡器信号和电导体的谐振频率，用于输出具有与电导体谐振频率相关的振幅的谐振器信号。 滤波器电路对谐振器信号进行整流和滤波，并将其提供给模数转换器，其输出与经整流和滤波的谐振器信号相关的数字信号。 控制器响应数字信号使得与衬底相关的系统根据数字信号进行操作。
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