Gear tooth position and speed sensor with four, bridge circuit
connected, magnetic resistance tracks
    1.
    发明授权
    Gear tooth position and speed sensor with four, bridge circuit connected, magnetic resistance tracks 失效
    齿轮位置和速度传感器四个,桥接电路连接,磁阻轨道

    公开(公告)号:US4506217A

    公开(公告)日:1985-03-19

    申请号:US398650

    申请日:1982-07-15

    CPC分类号: G01P3/488

    摘要: To simplify a field plate effect speed and position sensor, particularly for association with the starter gear of an automotive-type internal combustion engine, four meander-arranged permalloy resistance tracks are located on a substrate at the corners of a rectangle, spaced, in circumferential direction, by about half the pitch distance of the teeth (2) of the starter gear. The resistances can be connected in a voltage divider (FIG. 4) configuration, or in form of a bridge circuit (FIG. 5) supplied from a constant current source (CC) to eliminate temperature variation affects, and providing alternating current output voltages within the wide range of temperature of essentially uniform level as the teeth (2) scan the sensor, a special marker tooth (10) providing an output signal of different level. Preferably, the resistances (5-8) are formed as meander-shaped thin film vapor deposited tracks on a silicon substrate (4), a permanent magnet (9) providing bias magnetization, the direction of which changes with respect to the orientation of the meander tracks--preferably 45.degree. with respect to the direction of rotation (11) to cause the resistance elements to either have high, or low resistances (FIG. 3).

    摘要翻译: 为了简化场板效应速度和位置传感器,特别是对于与汽车内燃机的起动装置相关联,四个弯曲排列的坡莫合金电阻轨道位于矩形的角落处的基底上,周向间隔开 方向,大约是起动齿轮齿(2)的间距距离的大约一半。 电阻可以以分压器(图4)的配置或由恒流源(CC)提供的桥接电路(图5)的形式连接,以消除温度变化影响,并且提供交流输出电压 牙齿(2)扫描传感器时具有基本均匀水平的宽范围的温度,特殊标记齿(10)提供不同水平的输出信号。 优选地,电阻(5-8)形成为硅衬底(4)上的曲折形薄膜气相沉积轨道,提供偏置磁化的永磁体(9),其方向相对于 曲折轨迹 - 优选相对于旋转方向(11)为45°,以使电阻元件具有高或低电阻(图3)。

    Rotary speed sensor with Hall generator responding to tangential
component of magnetic field
    2.
    发明授权
    Rotary speed sensor with Hall generator responding to tangential component of magnetic field 失效
    具有霍尔发生器的旋转速度传感器响应于磁场的切向分量

    公开(公告)号:US4481469A

    公开(公告)日:1984-11-06

    申请号:US377026

    申请日:1982-05-11

    CPC分类号: G01P3/488 G01P3/487

    摘要: To determine the rotary speed of a toothed element (1), for example the starter gear of an internal combustion (IC) engine, or a toothed wheel coupled to a wheel of a vehicle for evaluation of the speed, and change in speed thereof, for use in a brake anti-block system, a magnetic field is generated, for example by a permanent magnet (3) which has both radial and tangential components with respect to the teeth (2) of the rotary element. A magnetic field dependent sensor (4) such as a Hall generator or a thin-film permalloy-type magneto-resistive sensor is positioned to respond to the tangential component of the magnetic field, to thereby eliminate shifts in the null or center line about which the field strength undulates as the disk rotates to permit ready evaluation of the output from the sensor by threshold circuitry.

    摘要翻译: 为了确定齿形元件(1)的转速,例如内燃(IC)发动机的起动齿轮或耦合到用于评估速度的车辆车轮的齿轮及其速度变化, 为了在制动防块系统中使用,例如通过相对于旋转元件的齿(2)具有径向和切向分量的永磁体(3)产生磁场。 位于磁场相关传感器(4),例如霍尔发生器或薄膜坡莫合金型磁阻传感器被定位成响应于磁场的切向分量,从而消除零线或中心线的偏移, 当磁盘旋转时,磁场强度波动,以允许通过阈值电路准备好评估传感器的输出。

    Circuit arrangement for transmitting measurement values on vehicle wheels
    5.
    发明授权
    Circuit arrangement for transmitting measurement values on vehicle wheels 失效
    用于在车轮上传输测量值的电路装置

    公开(公告)号:US4891973A

    公开(公告)日:1990-01-09

    申请号:US221464

    申请日:1988-06-09

    摘要: A circuit arrangement for transmitting variable measurement values, such as pressure and temperature, at vehicle wheels is provided which transmits the measurement values in the form of H-F signals to a stationary evaluating circuit (12) with great accuracy, high reliability and in short time intervals. A repeater coil (b 13), which is connected with the latter, arranged in the vicinity of the wheel so as to be stationary and connected to voltage by a square-wave generator (15), cooperates with a revolving repeated coil (19) which is fastened at the vehicle wheel and connected with a sensor circuit arrangement (20) supplied by it. The sensor circuit arrangement (20) contains a timing element (29) which responds to a voltage peak in the revolving repeater coil (19 l) at the end of a voltage pulse of the square-wave generator (15) and, with a corresponding delay, triggers a timing circuit (30) for transmitting the measurement values, which timing circuit (30) is connected with it on the output side, wherein the delay time of the timing element (29), together with the duty cycle of the timing circuit (30), is shorter than the pause time of the square-wave voltage at the square-wave generator (15).

    摘要翻译: PCT No.PCT / DE86 / 00523 Sec。 371日期:1988年6月9日 102(e)日期1988年6月9日PCT提交1986年12月24日PCT公布。 公开号WO87 / 04123 日本1987年7月16日。提供一种用于在车轮上传输诸如压力和温度的可变测量值的电路装置,其以高精度信号将测量值以HF信号的形式发送到静态评估电路(12) 高可靠性和短时间间隔。 与车轮相邻的中继器线圈(b 13)与方形波发生器(15)一起被固定并连接到电压,与旋转重复线圈(19)配合, 其被紧固在车轮上并且与由其提供的传感器电路装置(20)连接。 传感器电路装置(20)包含响应于方波发生器(15)的电压脉冲结束时的旋转中继器线圈(19l)中的电压峰值的定时元件(29),并且具有相应的 触发用于发送测量值的定时电路(30),该定时电路(30)在输出侧与其连接,其中定时元件(29)的延迟时间与定时的占空比 电路(30)比方波发生器(15)的方波电压的暂停时间短。

    Testable membrane sensor with two full bridges
    6.
    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
    7.
    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
    8.
    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
    10.
    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。