Device and method for testing the seal tightness of a fuel tank system of a motor vehicle
    41.
    发明申请
    Device and method for testing the seal tightness of a fuel tank system of a motor vehicle 失效
    用于测试机动车辆的燃料箱系统的密封紧密度的装置和方法

    公开(公告)号:US20060176058A1

    公开(公告)日:2006-08-10

    申请号:US11349260

    申请日:2006-02-08

    IPC分类号: G01R31/327

    CPC分类号: G01M3/025 F02M25/0809

    摘要: A device and method for testing seal tightness of a fuel tank system of a motor vehicle, wherein excess pressure is built up in the fuel tank system by an electrically operated pump and electric current consumption of the pump is compared to reference values in order to determine whether the seal tightness of the fuel tank system is sufficient, and wherein the fuel tank system includes a filler neck with a locking fuel tank cap. A control line is connected in parallel to the power supply line of the pump, the control line being guided across an electric tank cap switch, which assumes a different switch state when the filler neck is closed properly than when it is not closed properly. In at least one of these lines, an electric resistor is installed, which allows a determination of the switch state of the tank cap switch.

    摘要翻译: 一种用于测试机动车辆的燃料箱系统的密封紧密度的装置和方法,其中通过电动泵在燃料箱系统中建立过压,并将泵的电流消耗与参考值进行比较以确定 燃料箱系统的密封紧密度是否足够,并且其中燃料箱系统包括具有锁定燃料箱盖的加注口。 控制线与泵的电源线并联连接,控制线被引导穿过电动车箱盖开关,当加油口颈部未正确闭合时,其处于不同的开关状态。 在这些线路中的至少一个中,安装有电阻器,其允许确定罐盖开关的开关状态。

    Electronic circuit for controlling a capacitive pressure sensor and capacitive pressure sensor system
    42.
    发明授权
    Electronic circuit for controlling a capacitive pressure sensor and capacitive pressure sensor system 有权
    用于控制电容式压力传感器和电容式压力传感器系统的电子电路

    公开(公告)号:US08516894B2

    公开(公告)日:2013-08-27

    申请号:US12988979

    申请日:2009-04-03

    申请人: Josef Lutz

    发明人: Josef Lutz

    IPC分类号: G01L9/12

    CPC分类号: G01L9/12

    摘要: An electronic circuit (10) for controlling a capacitive pressure sensor (1), which capacitive pressure sensor (1) comprises a plate electrode capacitor (C) with a capacity that varies in dependence on pressure changes exerted on a deflectable diaphragm (2) forming one plate electrode of the capacitor (C), wherein the electronic circuit (10) comprises a DC voltage source (12) being adapted to generate a DC bias-voltage (UDC) to be applied across the electrodes of the capacitor (C), an AC voltage source (13) being adapted to generate an AC voltage signal (UAC) to be applied across the electrodes of the capacitor (C) and a controller (18) being adapted to receive an output signal (OUT) of the capacitor (C) and to control the DC voltage source (12) such that the DC bias-voltage (UDC) applied to the capacitor (C) adopts a value that maintains the capacity of the capacitor (C) at a desired value.

    摘要翻译: 一种用于控制电容式压力传感器(1)的电子电路(10),该电容式压力传感器(1)包括板电极电容器(C),该电容电容器(C)具有根据施加在形成的可偏转隔膜(2)上的压力变化而变化的能力 电容器(C)的一个平板电极,其中电子电路(10)包括适于产生跨过电容器(C)的电极施加的直流偏置电压(UDC)的直流电压源(12) 交流电压源(13)适于产生要施加在电容器(C)两端的电压的AC电压信号(UAC);以及控制器(18),适于接收电容器的输出信号(OUT) C)并且控制DC电压源(12),使得施加到电容器(C)的DC偏置电压(UDC)采用将电容器(C)的容量保持在期望值的值。

    Compound membrane, method of manufacturing the same, and acoustic device
    43.
    发明授权
    Compound membrane, method of manufacturing the same, and acoustic device 有权
    复合膜,其制造方法和声学装置

    公开(公告)号:US08284964B2

    公开(公告)日:2012-10-09

    申请号:US12513881

    申请日:2007-10-16

    IPC分类号: H04R25/00 H04R7/00

    CPC分类号: H04R7/10 Y10T29/49575

    摘要: A compound membrane (100) for an acoustic device (200), the compound membrane (100) comprising a first layer (101) and a second layer (102), wherein a value of Young's modulus of the second layer (102) does not vary more than essentially 30% in a temperature range between essentially −20° C. and essentially +85° C.

    摘要翻译: 一种用于声学装置(200)的复合膜(100),所述复合膜(100)包括第一层(101)和第二层(102),其中所述第二层(102)的杨氏模量值不 在基本-20℃和基本上+ 85℃之间的温度范围内变化超过基本上30%

    MEMS Transducer for an Audio Device
    44.
    发明申请
    MEMS Transducer for an Audio Device 审中-公开
    用于音频设备的MEMS传感器

    公开(公告)号:US20120056282A1

    公开(公告)日:2012-03-08

    申请号:US13262609

    申请日:2010-03-30

    IPC分类号: H01L29/84 H04R31/00

    摘要: A MEMS transducer (10) for an audio device comprises a substrate (12), a membrane (14) attached to the substrate (12), and a back-electrode (18) attached to the substrate (12), wherein a resonant frequency of the back-electrode (18) is matched to a resonant frequency of the membrane (14). Further, a method of manufacturing a MEMS transducer (19) for an audio device comprises attaching a membrane to a substrate (12), attaching a back-electrode (18) to the substrate (12), matching a resonant frequency of the back-electrode (18) to a resonant frequency of the membrane (14).

    摘要翻译: 用于音频装置的MEMS换能器(10)包括基板(12),附着到基板(12)的膜(14)和附接到基板(12)的背电极(18),其中谐振频率 (18)的谐振频率匹配。 此外,制造用于音频装置的MEMS换能器(19)的方法包括将膜附接到基板(12),将背电极(18)附接到基板(12),匹配背面电极(18)的谐振频率, 电极(18)到膜(14)的共振频率。

    ELECTRONIC CIRCUIT FOR CONTROLLING A CAPACITIVE PRESSURE SENSOR AND CAPACITIVE PRESSURE SENSOR SYSTEM
    45.
    发明申请
    ELECTRONIC CIRCUIT FOR CONTROLLING A CAPACITIVE PRESSURE SENSOR AND CAPACITIVE PRESSURE SENSOR SYSTEM 有权
    用于控制电容式压力传感器和电容式压力传感器系统的电子电路

    公开(公告)号:US20110056302A1

    公开(公告)日:2011-03-10

    申请号:US12988979

    申请日:2009-04-03

    申请人: Josef Lutz

    发明人: Josef Lutz

    IPC分类号: G01L9/12

    CPC分类号: G01L9/12

    摘要: An electronic circuit (10) for controlling a capacitive pressure sensor (1), which capacitive pressure sensor (1) comprises a plate electrode capacitor (C) with a capacity that varies in dependence on pressure changes exerted on a deflectable diaphragm (2) forming one plate electrode of the capacitor (C), wherein the electronic circuit (10) comprises a DC voltage source (12) being adapted to generate a DC bias-voltage (UDC) to be applied across the electrodes of the capacitor (C), an AC voltage source (13) being adapted to generate an AC voltage signal (UAC) to be applied across the electrodes of the capacitor (C) and a controller (18) being adapted to receive an output signal (OUT) of the capacitor (C) and to control the DC voltage source (12) such that the DC bias-voltage (UDC) applied to the capacitor (C) adopts a value that maintains the capacity of the capacitor (C) at a desired value.

    摘要翻译: 一种用于控制电容式压力传感器(1)的电子电路(10),该电容式压力传感器(1)包括板电极电容器(C),该电容电容器(C)具有根据施加在形成的可偏转隔膜(2)上的压力变化而变化的能力 电容器(C)的一个平板电极,其中电子电路(10)包括适于产生跨过电容器(C)的电极施加的直流偏置电压(UDC)的直流电压源(12) 交流电压源(13)适于产生要施加在电容器(C)两端的电压的AC电压信号(UAC);以及控制器(18),适于接收电容器的输出信号(OUT) C)并且控制DC电压源(12),使得施加到电容器(C)的DC偏置电压(UDC)采用将电容器(C)的容量保持在期望值的值。

    Device for generating a medium stream
    46.
    发明申请
    Device for generating a medium stream 有权
    用于产生中流的装置

    公开(公告)号:US20060159568A1

    公开(公告)日:2006-07-20

    申请号:US10562873

    申请日:2004-06-28

    申请人: Josef Lutz

    发明人: Josef Lutz

    IPC分类号: F04B43/00

    摘要: The invention relates to a device (1) for generating a medium stream, having a chamber (4), which chamber (4) comprises chamber walls (2, 3) lying opposite one another and at least one medium opening (27, 28, 29, 30) for the medium stream, which medium stream can be generated in the chamber (4) by means of a diaphragm (5), which diaphragm (5), in an inactive operating state of the device (1), is arranged substantially untensioned in the chamber (4) between the chamber walls (2, 3) lying opposite one another, and associated with which diaphragm (5) is a drive device (6), responsive to electrical drive signals, for driving the diaphragm (5) to deform the same, the drive device (6) being designed to impose a deformation on the diaphragm (5) in an active operating state of the device (1), during which deformation the diaphragm (5) has an inner mechanical tension.

    摘要翻译: 本发明涉及一种用于产生介质流的装置(1),其具有一个室(4),该室(4)包括彼此相对放置的室壁(2,3)和至少一个介质开口(27,28, 29,30),所述介质流可以通过膜片(5)在所述腔室(4)中产生,所述膜片(5)处于所述装置(1)的非活动操作状态, 在室壁(2,3)之间的腔室(4)中基本上未张紧,并且与隔膜(5)相关联,该隔膜(5)是响应于电驱动信号而驱动隔膜(5)的驱动装置(6) )使其变形,驱动装置(6)设计成在装置(1)的主动操作状态下在隔膜(5)上施加变形,在此期间隔膜(5)具有内部机械张力。