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    ULTRASONIC SENSOR WITH RECIPROCAL TRANSMITTING AND RECEIVING CIRCUIT
    4.
    发明申请
    ULTRASONIC SENSOR WITH RECIPROCAL TRANSMITTING AND RECEIVING CIRCUIT 有权
    超声波传感器具有接收发射和接收电路

    公开(公告)号：US20090000394A1

    公开(公告)日：2009-01-01

    申请号：US12031925

    申请日：2008-02-15

    申请人： Bernhard Opitz ,  Michael Horstbrink ,  Tobias Lang ,  Johannes Artzner

    发明人： Bernhard Opitz ,  Michael Horstbrink ,  Tobias Lang ,  Johannes Artzner

    IPC分类号： G01F1/66

    CPC分类号： G01F1/667

    摘要： An ultrasonic sensor has at least two ultrasonic converters for transmitting and receiving ultrasonic signals, connected with a transmitting circuit and a receiving circuit. A switching device is provided, by which the ultrasonic converters are connected in series when in the transmission mode, and they are separated from each other when in the receiving mode.

    摘要翻译： 超声波传感器具有至少两个用于发送和接收超声信号的超声波转换器，与发射电路和接收电路连接。 提供了一种开关装置，通过该开关装置，超声波转换器在传送模式下串联连接，并且当处于接收模式时它们彼此分离。

    Method for operating hot-film air-mass sensors
    5.
    发明授权
    Method for operating hot-film air-mass sensors 有权
    操作热膜空气传感器的方法

    公开(公告)号：US07980126B2

    公开(公告)日：2011-07-19

    申请号：US11887884

    申请日：2006-02-23

    申请人： Bernhard Opitz ,  Uwe Konzelmann ,  Christoph Gmelin ,  Araceli Pison

    发明人： Bernhard Opitz ,  Uwe Konzelmann ,  Christoph Gmelin ,  Araceli Pison

    IPC分类号： G01F1/692

    CPC分类号： G01F1/6983 ,  G01F1/6986

    摘要： A method is provided for operating a hot-film air-mass sensor, which can be used especially for measuring air mass flows in the intake tract of an internal combustion engine. The hot-film air-mass sensor has a sensor chip having a sensor frame and a sensor diaphragm having at least one heating element and at least two temperature sensors, a chip carrier for holding the sensor chip and at least one additional heating element. The sensor chip is able to be heated up using the at least one additional heating element. Immediately after shutting down the internal combustion engine, the at least one heating element of the sensor diaphragm is switched off, or is switched to a lower heating power. Furthermore, the at least one additional heating element is switched on for a specified postheating phase. The provided method is particularly suitable for avoiding oil contamination of the hot-film air-mass sensor.

    摘要翻译： 提供一种用于操作热膜空气质量传感器的方法，其可以特别用于测量内燃机的进气道中的空气质量流量。 热膜空气质量传感器具有传感器芯片，传感器框架和传感器隔膜具有至少一个加热元件和至少两个温度传感器，用于保持传感器芯片和至少一个附加加热元件的芯片载体。 传感器芯片能够使用至少一个附加的加热元件被加热。 在关闭内燃机之后，传感器隔膜的至少一个加热元件被切断，或切换到较低的加热功率。 此外，至少一个附加的加热元件在特定的后加热阶段被接通。 所提供的方法特别适用于避免热膜空气传感器的油污染。

    SENSOR ELEMENT FOR CAPACITIVE DIFFERENTIAL-PRESSURE SENSING
    7.
    发明申请
    SENSOR ELEMENT FOR CAPACITIVE DIFFERENTIAL-PRESSURE SENSING 有权
    传感器元件用于电容式差压检测

    公开(公告)号：US20100170346A1

    公开(公告)日：2010-07-08

    申请号：US12644331

    申请日：2009-12-22

    申请人： Bernhard Opitz ,  Christian Doering ,  Hans Artmann ,  Janpeter Wolff ,  Remigius Niekrawietz

    发明人： Bernhard Opitz ,  Christian Doering ,  Hans Artmann ,  Janpeter Wolff ,  Remigius Niekrawietz

    IPC分类号： G01L9/12

    CPC分类号： G01L9/0072 ,  B81B3/0078 ,  B81B2201/0264 ,  G01L13/025

    摘要： A sensor design, respectively a micromechanical sensor structure for capacitive relative-pressure measurement, that will allow very small pressure differentials to be reliably recorded at high absolute pressures even in harsh, particle-laden measuring environments. For that purpose, the micromechanical sensor element includes a deflectable diaphragm structure which is provided with at least one deflectable electrode, and a fixed support structure for at least one fixed counter-electrode which is located opposite the deflectable electrode. The diaphragm structure includes two mutually parallel configured diaphragms that are joined rigidly to one another via at least one connecting crosspiece, so that each application of force to one of the two diaphragms is directly transmitted to the respective other diaphragm. The first diaphragm is able to be pressurized by a first measuring pressure emanating from the front side of the sensor element, and the second diaphragm is able to be pressurized by a second measuring pressure emanating from the rear side of the sensor element. The fixed counter-electrode is located in the sealed volume between the two diaphragms of the diaphragm structure.

    摘要翻译： 传感器设计分别是用于电容式相对压力测量的微机械传感器结构，即使在苛刻的，充满颗粒的测量环境中，也能够将极小的压差可靠地记录在高绝对压力下。 为此目的，微机械传感器元件包括可偏转的膜结构，其具有至少一个可偏转电极，以及用于至少一个与可偏转电极相对的固定对置电极的固定支撑结构。 隔膜结构包括通过至少一个连接横档彼此刚性地连接的两个相互平行的构造的隔膜，使得对两个隔膜中的一个的每个施加的力直接传递到相应的另一个隔膜。 第一隔膜能够通过从传感器元件的前侧发出的第一测量压力被加压，并且第二隔膜能够被从传感器元件的后侧发出的第二测量压力加压。 固定对置电极位于隔膜结构的两个隔膜之间的密封体积中。

    Heated Hot-Film Air-Mass Sensor
    8.
    发明申请
    Heated Hot-Film Air-Mass Sensor 有权
    加热热电影空气质量传感器

    公开(公告)号：US20090211355A1

    公开(公告)日：2009-08-27

    申请号：US11887718

    申请日：2006-02-23

    申请人： Erhard Renninger ,  Gerhard Hueftle ,  Joerg Brueckner ,  Bernhard Opitz ,  Bernd Kuenzl ,  Uwe Konzelmann ,  Ulrich Wagner ,  Henning Marberg ,  Christoph Gmelin ,  Matthias Illian

    发明人： Erhard Renninger ,  Gerhard Hueftle ,  Joerg Brueckner ,  Bernhard Opitz ,  Bernd Kuenzl ,  Uwe Konzelmann ,  Ulrich Wagner ,  Henning Marberg ,  Christoph Gmelin ,  Matthias Illian

    IPC分类号： G01F1/692 ,  H05K3/30

    CPC分类号： F02D41/187 ,  G01F1/692 ,  G01F1/6983 ,  Y10T29/4913

    摘要： To determine air mass flows, especially for controlling internal combustion engines, a hot-film air-mass sensor is provided, which may be used especially for sensing air mass flows in the intake tract of an internal combustion engine. The hot-film air-mass sensor has a sensor chip having a sensor frame and a sensor diaphragm having at least one heating element and at least two temperature sensors. Furthermore, the hot-film air-mass sensor has a chip carrier for mounting the sensor chip, as well as at least one additional heating element. The sensor chip is able to be heated up using the at least one additional heating element, which is inserted into the chip carrier. Compared to the usual devices, the hot-film air-mass sensor has a lower susceptibility to contamination, especially by oil films.

    摘要翻译： 为了确定空气质量流量，特别是用于控制内燃机，提供了一种热膜空气质量传感器，其可以特别用于感测内燃机进气道中的空气质量流量。 热膜空气质量传感器具有传感器芯片，传感器芯片具有至少一个加热元件和至少两个温度传感器的传感器框架和传感器隔膜。 此外，热膜空气质量传感器具有用于安装传感器芯片的芯片载体，以及至少一个附加的加热元件。 传感器芯片能够使用插入到芯片载体中的至少一个附加加热元件来加热。 与常规装置相比，热膜空气质量传感器对污染的敏感性较低，特别是油膜。

    Method and device for determining a recognition threshold
    9.
    发明授权
    Method and device for determining a recognition threshold 有权
    用于确定识别阈值的方法和装置

    公开(公告)号：US09500465B2

    公开(公告)日：2016-11-22

    申请号：US13976566

    申请日：2011-10-31

    申请人： Eduard Rolew ,  Verena Schmidt ,  Bernhard Opitz

    发明人： Eduard Rolew ,  Verena Schmidt ,  Bernhard Opitz

    IPC分类号： G01B7/14 ,  G01D5/14

    CPC分类号： G01B7/14 ,  G01D5/145

    摘要： A method for determining a recognition threshold for recognizing the presence of a tooth or a tooth gap of a position sensor in front of a sensor is presented. The method includes a step of reading in a sensor signal which represents a variation over time of a measured magnetic field when the teeth and the tooth gaps of the position sensor are passed by the sensor. In addition, the method includes a step of ascertaining from the sensor signal a first value based on a minimum value of the sensor signal and a first value based on a maximum value of the sensor signal within a predefined time interval. The method also includes a step of computing a differential absolute value which represents a predetermined percentage of a difference between the value based on the at least one maximum value and a value based on the at least one minimum value of the sensor signal. Lastly, the method includes a step of determining the recognition threshold, so that the recognition threshold represents a value that corresponds to a result of adding the differential absolute value to the first value based on the minimum value of the sensor signal.

    摘要翻译： 提出了一种用于确定用于识别在传感器前面的位置传感器的齿或齿隙的存在的识别阈值的方法。 该方法包括读取传感器信号的步骤，该传感器信号表示当传感器通过位置传感器的齿和齿隙时测量的磁场随时间的变化。 此外，该方法包括从传感器信号中确定基于传感器信号的最小值的第一值和基于预定时间间隔内的传感器信号的最大值的第一值的步骤。 该方法还包括计算差分绝对值的步骤，该差分绝对值表示基于至少一个最大值的值与基于传感器信号的至少一个最小值的值之间的差的预定百分比。 最后，该方法包括确定识别阈值的步骤，使得识别阈值表示对应于基于传感器信号的最小值将差分绝对值与第一值相加的结果的值。