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    • 3. 发明授权
    • Sensor, sensor system, and method for remotely sensing a variable
    • 传感器,传感器系统和远程感测变量的方法
    • US06897775B2
    • 2005-05-24
    • US10275162
    • 2001-04-05
    • Bernhard ElsnerHenry Heidemeyer
    • Bernhard ElsnerHenry Heidemeyer
    • G01S13/74G01S13/75G08C17/02G08B1/08H04Q7/00
    • G08C17/02G01S13/753
    • A sensor system for remote detection of a measurable variable includes a sensor, with a first resonator (5) which has a resonant frequency that is variable under the influence of the measurable variable; an antenna (1) for sending and receiving a modulated high-frequency signal; a modem (2) for coupling the first resonator (5) to the antenna; and a second resonator (3) that can be excited by a carrier frequency of the high-frequency signal. An interrogation unit generates an inquiry radio signal for exciting the two resonators and interrupts the broadcasting of the inquiry radio signal in order to receive a response radio signal broadcast by the sensor.
    • 用于远程检测可测量变量的传感器系统包括具有第一谐振器(5)的传感器,所述第一谐振器(5)具有在可测量变量的影响下可变的谐振频率; 用于发送和接收调制高频信号的天线(1); 调制解调器(2),用于将第一谐振器(5)耦合到天线; 以及能够被高频信号的载波频率激励的第二谐振器(3)。 询问单元生成用于激励两个谐振器的查询无线电信号,并中断查询无线电信号的广播,以便接收由传感器广播的响应无线电信号。