Pressure sensor, especially for intake air suction pressure
    1.
    发明授权
    Pressure sensor, especially for intake air suction pressure 失效
    压力传感器,特别适用于进气吸入压力

    公开(公告)号:US4269069A

    公开(公告)日:1981-05-26

    申请号:US114573

    申请日:1980-01-23

    IPC分类号: G01L9/00

    CPC分类号: G01L9/0088 G01L9/0077

    摘要: In order to provide immunity against vibrations, a pressure sensor for detecting the prevailing manifold suction pressure in an internal combustion engine, for example, has a movable chamber which responds to the varying pressure and thereby changes the distance between a diffuse reflector and an optical detector assembly. The detector assembly includes a light source, a first light-sensitive detector and a second light-sensitive detector. The second detector is connected to a regulator which so controls the electrical power to the light source that the induced photo current in the second detector remains substantially constant independently of the distance between the reflector and the detectors. A number of embodiments is presented.

    摘要翻译: 为了提供对振动的抵抗力,例如用于检测内燃机中主要的歧管吸入压力的压力传感器具有响应于变化的压力的可移动室,从而改变漫反射器和光学检测器之间的距离 部件。 检测器组件包括光源,第一感光检测器和第二光敏检测器。 第二检测器连接到调节器,该调节器控制光源的电功率,使得第二检测器中的感应光电流保持基本上恒定,而与反射器和检测器之间的距离无关。 呈现了许多实施例。

    Testable membrane sensor with two full bridges
    2.
    发明授权
    Testable membrane sensor with two full bridges 失效
    具有两个全桥的可测膜传感器

    公开(公告)号:US06289738B1

    公开(公告)日:2001-09-18

    申请号:US08806256

    申请日:1997-02-21

    IPC分类号: G01L700

    摘要: A sensor is proposed that has a measuring diaphragm (2), with at least one resistor measurement bridge (7, 8); a deflection of the measuring diaphragm (2) causes mistuning of the respective measurement bridge (7, 8), and the resultant change in the bridge diagonal voltage can be evaluated. The sensor (1) has one resistor measurement bridge (7, 8) on each half (3, 4) of the measuring diaphragm (2), and in each of the resistor measurement bridges (7, 8), two opposed bridge branches (R1, R4) are changed in their resistance values (&Dgr;R) by radial compressive offset, and the respectively other bridge branches (R2, R3) are altered in their resistances by radial or tangential elongation.

    摘要翻译: 提出了一种具有测量膜片(2)的传感器,具有至少一个电阻测量桥(7,8); 测量光阑(2)的偏转导致测量桥(7,8)的失谐,从而可以评估桥对角线电压的变化。 传感器(1)在测量膜(2)的每一半(3,4)上具有一个电阻测量桥(7,8),并且在每个电阻测量桥(7,8)中,两个相对的桥分支 R1,R4)通过径向压缩偏移改变其电阻值(DELTAR),并且其他桥接支路(R2,R3)通过径向或切向伸长改变其电阻。

    Apparatus for determining rotational position of a rotatable element
without contacting it
    3.
    发明授权
    Apparatus for determining rotational position of a rotatable element without contacting it 失效
    用于确定可旋转元件的旋转位置而不与其接触的装置

    公开(公告)号:US5880586A

    公开(公告)日:1999-03-09

    申请号:US682642

    申请日:1996-07-22

    CPC分类号: G01D5/145 G01R33/077

    摘要: The apparatus for determining rotational position of a rotatable element without contacting it includes a sensor device having two Hall or AMR sensor elements for sensing a magnetic field of magnetic field strength (B) generated by or influenced by the rotational position of the rotatable element and for producing output signals according to the magnetic field and thus the rotational position of the rotatable element. In order to easily detect the absolute rotational position of the rotatable element, the sensor device is constructed and positioned with respect to the rotatable element so that in every rotational position the field lines from the rotatable element extend at right angles to the sensor structures defined by the direction of an alternating current in the sensor elements. Using different embodiments of an electronic evaluation circuit, the direction components of the magnetic field are evaluated to determine the rotational position by comparing the input current to one of the sensors and the sum of the output signals of the respective sensor elements. Either sinusoidal or rectangular alternating voltages or direct voltages are input to the sensor elements.

    摘要翻译: PCT No.PCT / DE95 / 01626 Sec。 371日期:1996年7月22日 102(e)日期1996年7月22日PCT提交1995年11月22日PCT公布。 公开号WO96 / 16316 PCT 日期1996年5月30日用于确定可旋转元件的旋转位置而不与其接触的装置包括具有两个霍尔或AMR传感器元件的传感器装置,用于感测由或由其旋转位置产生或受其影响的磁场强度(B) 并且用于根据磁场产生输出信号,从而产生可旋转元件的旋转位置。 为了容易地检测可旋转元件的绝对旋转位置,传感器装置相对于可旋转元件构造和定位,使得在每个旋转位置中,来自可旋转元件的场线与由 传感器元件中交流电的方向。 使用电子评估电路的不同实施例,评估磁场的方向分量以通过将输入电流与传感器之一进行比较并将各个传感器元件的输出信号之和进行比较来确定旋转位置。 将正弦或矩形交流电压或直流电压输入到传感器元件。

    Rotational rate sensor with two acceleration sensors
    4.
    发明授权
    Rotational rate sensor with two acceleration sensors 失效
    带两个加速度传感器的转速传感器

    公开(公告)号:US5703293A

    公开(公告)日:1997-12-30

    申请号:US645375

    申请日:1996-05-13

    IPC分类号: G01C19/56 G01P9/00 G01C19/00

    CPC分类号: G01C19/574

    摘要: A rotational sensor has a vibrating weight with two acceleration sensors mounted on it. The two acceleration sensors are designed to detect forces acting at a right angle to each other. The vibrating weight is set in vibration by means of driving devices, and rotation of the rotational sensor about two axes of rotation that are normal to each other is detected with the help of the acceleration sensors. The Coriolis forces in a plane are determined in this way.

    摘要翻译: 旋转传感器具有安装在其上的两个加速度传感器的振动重量。 两个加速度传感器被设计成检测作用在彼此成直角的力。 通过驱动装置将振动重量设置在振动中,并且借助于加速度传感器来检测旋转传感器围绕彼此正交的两个旋转轴的旋转。 科里奥利在一架飞机上的力量是这样确定的。

    Inclination sensor
    6.
    发明授权
    Inclination sensor 失效
    倾角传感器

    公开(公告)号:US5261279A

    公开(公告)日:1993-11-16

    申请号:US840328

    申请日:1992-02-24

    IPC分类号: G01C9/06 G01C9/12

    CPC分类号: G01C9/06 G01C9/12

    摘要: A rotor for detecting inclination angles in relation to a defined rotational axis perpendicular to the direction of the field of gravity is proposed. In the center area of the sensor interior, enclosed by a housing, a mounting (25) is located, which is fixed in relation to the housing (30), and on which a seismic mass is suspended so that it can swing. The seismic mass is formed in the shape of a rotor (10) which is asymmetrical in respect to the mounting (25) and which can perform excursions around an axis defined by the mounting (25). Portions (11, 12) of the rotor (10) constitute electrodes of a capacitor arrangement. A border (20), fixed in relation to the housing (30), is disposed around the rotor (10) parallel to the axis defined by the mounting (25). The portions (21, 22, 23) of the border (20) constitute the backplate electrodes of the capacitor arrangement.

    摘要翻译: 提出了一种用于检测与垂直于重力方向的限定旋转轴相关的倾斜角的转子。 在传感器内部的中心区域,由壳体包围,安装件(25)被定位成相对于壳体(30)固定,并且其上悬挂有地震块以使其摆动。 地震质量形成为相对于安装件(25)不对称的转子(10)的形状,并且可以执行围绕由安装件(25)限定的轴线的偏移。 转子(10)的部分(11,12)构成电容器装置的电极。 相对于壳体(30)固定的边界(20)围绕平行于由安装件(25)限定的轴线的转子(10)设置。 边框(20)的部分(21,22,23)构成电容器装置的背板电极。

    System for controlling the resistance of a load connected to a transformer
    7.
    发明授权
    System for controlling the resistance of a load connected to a transformer 失效
    用于控制连接到变压器的负载的电阻的系统

    公开(公告)号:US06288551B1

    公开(公告)日:2001-09-11

    申请号:US09011850

    申请日:1998-02-18

    IPC分类号: G01R3100

    摘要: In an arrangement that can be implemented with a simple circuit, the load is connected in parallel to an additional resistor. The primary-side input resistance of the transformer is measured, and when the input resistance differs from a predefined value, a load malfunction is signaled.

    摘要翻译: 在可以用简单电路实现的布置中,负载与附加电阻器并联连接。 测量变压器的初级侧输入电阻,当输入电阻与预定值不同时,发出负载故障。

    Arrangement for controlling a load connected to the secondary side of a
transformer
    8.
    发明授权
    Arrangement for controlling a load connected to the secondary side of a transformer 失效
    用于控制连接到变压器次级侧的负载的布置

    公开(公告)号:US5969432A

    公开(公告)日:1999-10-19

    申请号:US51901

    申请日:1998-06-23

    摘要: A synchronous rectifier, to which the primary-side input voltage of the transformer and a control voltage with the same frequency as the input voltage is applied, is connected to the primary side of the transformer. The phase of the control voltage can be switched between 0.degree. and 90.degree., so that the output voltage of the synchronous rectifier corresponds exclusively to the voltage drop component at the ohmic input resistance of the transformer at 0.degree., and exclusively to the voltage drop component at the inductive input resistance of the transformer at 90.degree.. Since both the ohmic and the inductive input resistances are dependent on the resistance of the load connected to the secondary side (e.g., the squib of an air bag), both voltage components can be used to obtain reliable information on the status of the load resistance.

    摘要翻译: PCT No.PCT / DE96 / 01297 371日期1998年6月23日第 102(e)1998年6月23日PCT PCT 1996年7月17日PCT公布。 出版物WO97 / 15834 日期1997年5月1日将变压器初级侧输入电压和施加与输入电压相同频率的控制电压的同步整流器连接到变压器的初级侧。 控制电压的相位可以在0°和90°之间切换,使得同步整流器的输出电压仅与变压器在0°的欧姆输入电阻下的电压降分量完全相对应, 变压器感应输入电阻在90°时的分量。 由于欧姆和电感输入电阻都取决于连接到次级侧的负载(例如,气囊的爆管)的电阻,所以可以使用两个电压分量来获得有关负载电阻状态的可靠信息 。

    Tank level meter
    10.
    发明授权
    Tank level meter 失效
    坦克液位计

    公开(公告)号:US4896535A

    公开(公告)日:1990-01-30

    申请号:US255649

    申请日:1988-10-11

    IPC分类号: G01F23/296

    摘要: A tank level meter includes an elongated sound conductor of a solid material extending over the entire height of the tank and having a coating partially surrounding it. A sound generator is coupled to one end of the sound conductor to excite thereon surface waves and the opposite end of the conductor is coupled to a sound receiver. Due to different acoustic impedances of the material of the sound conductor of the fluids present in the tank that means of the air and of a liquid whose level is to be measured, the sound waves propagating at the interface of the sound conducting member and fluids arrive to the receiver with a phase shift which is proportional to the liquid level in the tank. By a suitable selection of materials of the sound conductor and coating it is possible to obtain an unambiguous measuring signal at the receiver or a measuring signal having a high resolution. By using at least two sound conductors in the tank it is possible to obtain both a single value volume reading and a high resolution.

    摘要翻译: 坦克液位计包括在罐的整个高度上延伸的固体材料的细长声音导体,并且具有部分地围绕其的涂层。 声音发生器耦合到声音导体的一端以在其上激发表面波,并且导体的相对端耦合到声音接收器。 由于存在于罐中的存在于空气中的流体的声导体的材料的声阻抗和水平要被测量的液体的声阻抗不同,所以在导声构件和流体的界面处传播的声波到达 具有与罐中的液面成比例的相移的接收器。 通过声导体和涂层的材料的合适选择,可以在接收器处获得明确的测量信号或具有高分辨率的测量信号。 通过在油箱中使用至少两根声音导体,可以获得单个体积读数和高分辨率。