Fluid-based acceleration and tilt sensor
    12.
    发明授权
    Fluid-based acceleration and tilt sensor 失效
    基于流体的加速和倾斜传感器

    公开(公告)号:US5279040A

    公开(公告)日:1994-01-18

    申请号:US896898

    申请日:1992-06-10

    摘要: A sensor (10) for measurement of acceleration and/or tilt of a movable object, particularly a motor vehicle, features an interior space (12) partially filled with fluid (15). Within that space, at least two heatable, temperature-sensitive electrical circuit elements are arranged so that, in a rest or initial position of the sensor, they are equally covered or wetted by the fluid. If the acceleration and tilt of the movable object are both zero, or the two cancel each other out, the sensor reading is zero. If this is not the case, the acceleration or tilt leads to a differing degree of coverage or wetting of the at least two circuit elements, and thus to a non-zero sensor reading.

    摘要翻译: 用于测量可移动物体,特别是机动车辆的加速度和/或倾斜的传感器(10)具有部分填充有流体(15)的内部空间(12)。 在该空间内,设置至少两个可加热的温度敏感的电路元件,使得在传感器的休息或初始位置,它们被流体同等地覆盖或润湿。 如果可移动物体的加速度和倾斜度均为零,或两者彼此抵消,传感器读数为零。 如果不是这种情况,则加速度或倾斜导致至少两个电路元件的不同程度的覆盖或湿润,从而导致非零传感器读数。

    Acceleration pick-up
    13.
    发明授权
    Acceleration pick-up 失效
    加速拍摄

    公开(公告)号:US5107708A

    公开(公告)日:1992-04-28

    申请号:US457762

    申请日:1990-01-03

    IPC分类号: G01P15/12

    CPC分类号: G01P15/123

    摘要: In an acceleration pick-up (11), the bending spring (13) is a substrate plate, e.g. produced from Al.sub.2 O.sub.3, which is arranged at one side on an elevated portion (12) of a support (10) produced from mechanically rigid material. Accordingly, the resistors (19 to 22) and particularly the evaluating circuit (24) on an elevated portion (12) of the support (10) can be arranged jointly on the bending spring (13) and applied in a single work step using thick-film technology. In addition, a cut out portion (14) is formed in the bending spring (13), so that two bending webs (15, 16) can be formed at the greatest possible distance from one another. Two of the resistors (19, 21) are arranged on the bending webs (15, 16) and one of the remaining resistors (20, 22) is arranged in the area of the cut out portion (14). Accordingly, an electrical monitoring of the mechanical state of the bending spring (13) is made possible.

    摘要翻译: PCT No.PCT / DE89 / 00263 Sec。 371 1990年1月3日第 102(e)日1990年1月3日PCT提交1989年4月25日PCT公布。 出版物WO89 / 11104 日期为1989年11月16日。在加速拾取器(11)中,弯曲弹簧(13)为基板。 由Al 2 O 3制成,其由布置在由机械刚性材料制成的支撑体(10)的升高部分(12)上的一侧。 因此,支撑件(10)的升高部分(12)上的电阻器(19至22),特别是评估电路(24)可以共同设置在弯曲弹簧(13)上,并且使用厚的 薄膜技术。 此外,在弯曲弹簧(13)中形成切口部分(14),使得可以以彼此最大可能的距离形成两个弯曲腹板(15,16)。 两个电阻器(19,21)布置在弯曲腹板(15,16)上,其余一个电阻器(20,22)设置在切口部分(14)的区域中。 因此,能够对弯曲弹簧(13)的机械状态进行电气监视。

    Acceleration pickup
    15.
    发明授权
    Acceleration pickup 失效
    加速拾取

    公开(公告)号:US5005414A

    公开(公告)日:1991-04-09

    申请号:US347330

    申请日:1989-05-03

    IPC分类号: B60R21/16 G01P15/12 H01L29/84

    CPC分类号: G01P15/123

    摘要: An acceleration pickup for releasing occupant protecting devices in power vehicles has a housing, a ceramic plate which acts as a bending spring and is clamped at its one end in the housing, and expansion-sensitive resistances arranged in the ceramic plate. The housing is composed of several layers of ceramic structural parts and is produced by a thick film technique.

    摘要翻译: 用于释放动力车辆中的乘员保护装置的加速拾取器具有壳体,用作弯曲弹簧并被夹持在壳体中的一端的陶瓷板和布置在陶瓷板中的膨胀敏感电阻。 外壳由几层陶瓷结构件组成,采用厚膜技术制成。

    Acceleration sensor with oppositely-polarized piezoelectric plates
    18.
    发明授权
    Acceleration sensor with oppositely-polarized piezoelectric plates 失效
    具有相反极化压电板的加速度传感器

    公开(公告)号:US5473930A

    公开(公告)日:1995-12-12

    申请号:US384238

    申请日:1995-02-06

    CPC分类号: G01P21/00 G01P15/0922

    摘要: An acceleration sensor, which is particularly adapted for use in motor vehicles, is improved by structuring it to be readily testable, to assure reliability before installation. The acceleration sensor has a piezo element (1), which consists of at least two piezo-electric plates (2) placed on top of each other, the piezo-electrical polarization of which is oriented in opposite directions. At least two electrodes (9) are placed on each of the topside (7) and the underside (8) of the piezo element (1). For testing the sensor, the piezo element is deformed by the application of an electrical voltage to electrodes (9) of a first lateral portion (11a) of the piezo element. This deformation is detected by means of a deformation-generated voltage at the electrodes (9) of a second lateral portion (11b) of the piezo element.

    摘要翻译: 特别适用于机动车辆的加速度传感器通过将其构造成易于测试而得到改进,以确保安装前的可靠性。 加速度传感器具有压电元件(1),该压电元件(1)由至少两个放置在彼此顶部的压电板(2)组成,其压电电极化方向相反。 至少两个电极(9)被放置在压电元件(1)的顶侧(7)和下侧(8)的每一个上。 为了测试传感器,压电元件通过对压电元件的第一横向部分(11a)的电极(9)施加电压而变形。 通过压电元件的第二横向部分(11b)的电极(9)处的变形产生的电压来检测该变形。

    Sensor for measuring acceleration and tilt with a bubble level
    19.
    发明授权
    Sensor for measuring acceleration and tilt with a bubble level 失效
    用于测量气泡高度的加速度和倾斜度的传感器

    公开(公告)号:US5351539A

    公开(公告)日:1994-10-04

    申请号:US839757

    申请日:1992-05-26

    摘要: A sensor is proposed which is used for detecting the acceleration and the inclination of a movable object (10), in particular a motor vehicle. A bubble level (11) is fixed on the object (10). The bubble level (11) comprises a housing (12), a liquid (16) contained in the housing (12) and a gas bubble (17) contained in the housing (12). The liquid (16) and the gas bubble (17) together completely fill the hollow chamber (15) enclosed by the housing (12), so that the gas bubble (17) is not completely enclosed by the liquid (16), but lies against the interior of the housing (12), so that the surface separating the liquid and the gas pushes against the interior of the housing (12). The gas bubble (17) is in an initial position inside the housing (12) when the acceleration and the inclination of the bubble level (11) are equal to zero or their effects are mutually canceled out. On the inside of the housing (12), within that area over which the gas bubble (17) extends in the said initial position, an electrically heatable, temperature-sensitive electrical circuit element (RS) is disposed, which is a component of an evaluation circuit, which generates an output signal (U.sub.D) which is a function of the acceleration and the inclination of the bubble level (11).

    摘要翻译: PCT No.PCT / DE90 / 00862 Sec。 371日期:1992年5月26日 102(e)日期1992年5月26日PCT 1990年11月13日PCT PCT。 公开号WO90 / 08492 日期:1991年6月13日。提出了一种用于检测可移动物体(10),特别是机动车辆的加速度和倾角的传感器。 气泡水平(11)固定在物体(10)上。 气泡高度(11)包括壳体(12),容纳在壳体(12)中的液体(16)和容纳在壳体(12)中的气泡(17)。 液体(16)和气泡(17)一起完全填充由壳体(12)包围的中空室(15),使得气泡(17)不被液体(16)完全包围,而是位于 抵靠壳体(12)的内部,使得分离液体和气体的表面推动抵靠壳体(12)的内部。 当气泡水平(11)的加速度和倾斜度等于零或其效果相互抵消时,气泡(17)处于壳体(12)内的初始位置。 在壳体(12)的内部,在气泡(17)在所述初始位置延伸的区域内,设置可电加热的温度敏感电路元件(RS),其是 评估电路,其产生作为气泡水平(11)的加速度和倾斜度的函数的输出信号(UD)。

    Device for measuring a flowing air quantity
    20.
    发明授权
    Device for measuring a flowing air quantity 失效
    用于测量流动空气量的装置

    公开(公告)号:US5186051A

    公开(公告)日:1993-02-16

    申请号:US656097

    申请日:1991-02-27

    CPC分类号: G01F1/692 G01F1/684 G01F1/698

    摘要: A device for measuring a flowing air quantity is proposed which comprises a sensor element which is exposed to the flowing air, is constructed in thick-film technology and contains a heating film resistor (R.sub.H), which is arranged on an insulating substrate (10) and through which current flows, and a sensor film resistor (R.sub.S) which is likewise arranged on the insulating substrate (10), serves to sense the temperature of the heating film resistor (R.sub.H) and is a component of a bridge circuit. The heating film resistor (R.sub.H) and the sensor film resistor (R.sub.S), separated from one another by an intermediate film (13) which is a good conductor of heat but is electrically insulating, are accommodated in a bubble (11) which is made of ceramic material, in particular of glass ceramic, and is arched on the insulating substrate (10). The thin diaphragm (14) made of a ceramic material ensures effective thermal uncoupling of the film resistors (R.sub.H, R.sub.S) from the insulating substrate (10). Short response times are thereby achieved.

    摘要翻译: PCT No.PCT / DE89 / 00524 Sec。 371日期1991年2月27日 102(e)1991年2月27日PCT PCT 1989年8月9日PCT公布。 公开号WO90 / 02317 日本1990年3月8日提出了一种用于测量流动空气量的装置,其包括暴露于流动空气的传感器元件,以厚膜技术构成,并且包括加热膜电阻器(RH) 在绝缘基板(10)上流过电流,同时设置在绝缘基板(10)上的传感器膜电阻(RS)用于感测加热膜电阻(RH)的温度,并且是组件 的桥电路。 通过中间膜(13)彼此分离的加热膜电阻器(RH)和传感器膜电阻器(RS),它们是良好的导热体,但是是电绝缘的,被容纳在制成的气泡(11)中 的陶瓷材料,特别是玻璃陶瓷,并且在绝缘基板(10)上拱起。 由陶瓷材料制成的薄膜(14)确保薄膜电阻器(RH,RS)与绝缘衬底(10)的有效热解耦。 从而实现了较短的响应时间。