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17 条记录 (耗时 0.019 秒)

    Passive surface wave sensor which can be wirelessly interrogated
    1.
    发明授权
    Passive surface wave sensor which can be wirelessly interrogated 失效
    无源表面波传感器，可无线询问

    公开(公告)号：US6144332A

    公开(公告)日：2000-11-07

    申请号：US270931

    申请日：1994-07-05

    申请人： Leonhard Reindl ,  Folkhard Muller ,  Clemens Ruppel ,  Wolf-Eckhart Bulst ,  Franz Seifert

    发明人： Leonhard Reindl ,  Folkhard Muller ,  Clemens Ruppel ,  Wolf-Eckhart Bulst ,  Franz Seifert

    IPC分类号： G06K7/08 ,  G01S13/02 ,  G01S13/34 ,  G01S13/75 ,  G06K7/10 ,  H03H9/25 ,  H03H9/44

    CPC分类号： G01S13/755 ,  G06K19/0675 ,  G01S13/34

    摘要： In a passive surface wave sensor for measured value determination, a measured value is transmitted by radio from a remote measuring location to an interrogation device, which transmits energy by radio to a sensor element as an interrogation pulse. The surface wave sensor is suitable for contactless measured value acquisition. A surface wave configuration is the sensor element and a surface wave reference element is provided for phase discrimination and/or propagation time measurement. As a further development, a sensor operated with chirped transmitting signals and having chirped reflectors is provided, in which the configuration has a reference function in place of the reference element. A sensor constructed in such a way that it has a chirped function has the characteristics of an imminently temperature-compensated sensor for measuring other physical or similar variables.

    摘要翻译： 在用于测量值确定的被动表面波传感器中，测量值通过无线电从远程测量位置发送到询问设备，该询问设备通过无线电将能量传输到传感器元件作为询问脉冲。 表面波传感器适用于非接触式测量值采集。 表面波构造是传感器元件，并且提供用于相位鉴别和/或传播时间测量的表面波参考元件。 作为进一步的发展，提供了具有啁啾发送信号并具有啁啾反射器的传感器，其中该配置具有参考功能来代替参考元件。 以具有啁啾功能的方式构造的传感器具有用于测量其他物理或类似变量的即将温度补偿传感器的特征。

    Radio scanning system using acoustical surface waves (SW radio scanning system)
    2.
    发明授权
    Radio scanning system using acoustical surface waves (SW radio scanning system) 失效
    使用声表面波的无线电扫描系统（SW无线电扫描系统）

    公开(公告)号：US5910779A

    公开(公告)日：1999-06-08

    申请号：US744464

    申请日：1996-11-07

    申请人： Wolf-Eckhart Bulst ,  Clemens Ruppel ,  Leonhard Reindl ,  Franz Seifert

    发明人： Wolf-Eckhart Bulst ,  Clemens Ruppel ,  Leonhard Reindl ,  Franz Seifert

    IPC分类号： G08C15/06 ,  G01S13/75 ,  G06K7/00 ,  G08C23/02 ,  H03H9/42 ,  H04B1/59 ,  H04Q7/00

    CPC分类号： G06K7/10039 ,  G01S13/755 ,  G06K7/0008

    摘要： A radio scanning system using acoustical surface waves (SW radio scanning system) includes a transceiver unit and sensor elements defining at least one parameter to be scanned. The transceiver unit has a transmitter transmitting question signals to the sensor elements and a receiver receiving and evaluating answer signals transmitted back by the sensor elements. The transmitter and the sensor elements are constructed in such a way that the question signals and the answer signals are chronologically inverse to one another. The sensor elements have different SW transit times.

    摘要翻译： 使用声表面波的无线电扫描系统（SW无线电扫描系统）包括限定要被扫描的至少一个参数的收发器单元和传感器元件。 收发器单元具有发射器向传感器元件发送问号信号的发射器和接收并评估由传感器元件发回的应答信号的接收器。 发射机和传感器元件被构造成使得问题信号和应答信号按时间顺序相反。 传感器元件具有不同的SW传送时间。

    Method of and apparatus for acquiring data of dynamic physical processes via a radio link
    8.
    发明授权
    Method of and apparatus for acquiring data of dynamic physical processes via a radio link 失效
    通过无线电链路获取动态物理过程的数据的方法和装置

    公开(公告)号：US07026977B2

    公开(公告)日：2006-04-11

    申请号：US10440402

    申请日：2003-05-19

    申请人： Leonhard Reindl

    发明人： Leonhard Reindl

    IPC分类号： B60C23/00 ,  G01S13/00 ,  B60T8/00

    CPC分类号： B60T8/1725 ,  B60C23/0444 ,  B60T2240/03

    摘要： For acquiring data of dynamic physical processes via a radio link, a transponder antenna (17) is excited by an electromagnetic exciting wave at the resonance frequency of the transponder antenna (17), and a back-scattered electromagnetic sensor wave which is modulated by a sensor (16) having an electrical impedance depending on the data to be acquired is received and analyzed. The sensor (16) is directly connected to the transponder antenna (17) such that the sensor changes the electrical impedance of the transponder antenna (17) with every variation of the data to be acquired. The electromagnetic wave which is back-scattered by the transponder antenna (17) is received as the sensor wave at the same time as the transponder antenna (17) is excited by the exciting wave.

    摘要翻译： 为了通过无线电链路获取动态物理过程的数据，应答器天线（17）由应答器天线（17）的谐振频率处的电磁激励波被激发，并且被反向天线（17）调制的反向散射电磁传感器波 接收并分析具有取决于要获取的数据的电阻抗的传感器（16）。 传感器（16）直接连接到应答器天线（17），使得传感器随着要获取的数据的每个变化改变应答器天线（17）的电阻抗。 在应答器天线（17）被激励波激励的同时，被转发器天线（17）反向散射的电磁波作为传感器波被接收。

    PIEZOELECTRIC SENSOR ARRANGEMENT COMPRISING A THIN LAYER SHEAR WAVE RESONATOR BASED ON EPITACTICALLY GROWN PIEZOELECTRIC LAYERS
    9.
    发明申请
    PIEZOELECTRIC SENSOR ARRANGEMENT COMPRISING A THIN LAYER SHEAR WAVE RESONATOR BASED ON EPITACTICALLY GROWN PIEZOELECTRIC LAYERS 失效
    基于电阻式压电层的薄层剪切波形谐振器的压电传感器布置

    公开(公告)号：US20100127600A1

    公开(公告)日：2010-05-27

    申请号：US12518054

    申请日：2007-12-05

    申请人： Marc Loschonsky ,  Armin Dadgar ,  Leonhard Reindl

    发明人： Marc Loschonsky ,  Armin Dadgar ,  Leonhard Reindl

    IPC分类号： G01N29/036 ,  H01L41/053

    CPC分类号： H03H9/176 ,  G01N29/036 ,  G01N2291/0256 ,  H03H9/174 ,  H03H9/175

    摘要： The invention relates to piezoelectric sensor arrangements, especially sensor arrangements that can be operated in a measuring fluid, in order to be able to detect, for example, elastic properties of the measuring fluid itself or the presence and/or concentration of analyte molecules in the fluid. According to the invention, the sensor arrangement comprises an acoustic resonator which has a sensitive region and is arranged such that a resonance frequency of the sensor arrangement varies according to properties of the measuring fluid. The acoustic resonator is formed by a piezoelectric thin layer resonator and the sensitive region is produced by means of epitaxy, such that transversally polarised vibration modes can be induced.

    摘要翻译： 本发明涉及压电传感器装置，特别是能够在测量流体中操作的传感器装置，以便能够检测例如测量流体本身的弹性特性或者测量流体本身的分析物分子的存在和/或浓度 流体。 根据本发明，传感器装置包括具有敏感区域并且被布置成使得传感器装置的共振频率根据测量流体的性质而变化的声谐振器。 声谐振器由压电薄层谐振器形成，并且通过外延产生敏感区域，使得可以诱发横向极化的振动模式。