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。