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    • 9. 发明申请
    • SURFACE ACOUSTIC WAVE SENSOR AND SENSING METHOD USING SURFACE ACOUSTIC WAVE
    • 表面声波传感器和使用表面声波的感测方法
    • US20100231308A1
    • 2010-09-16
    • US12404595
    • 2009-03-16
    • Hun Joo LEESoo Suk LEESoo Hyung CHOI
    • Hun Joo LEESoo Suk LEESoo Hyung CHOI
    • G01N27/00H03H9/25H02N2/00
    • G01N29/022G01N29/348G01N2291/0256G01N2291/0423
    • A surface acoustic wave (“SAW”) sensor includes; a first signal generator which generates a first signal having a predetermined frequency bandwidth using a pseudo random sequence, a second signal generator which generates a second signal with a predetermined frequency, a signal blender which blends the first signal with the second signal to generate a blended signal having the predetermined frequency bandwidth with the predetermined frequency as a center frequency, a wave generator which generates a surface acoustic wave using the blended signal, which converts the surface acoustic wave into a third signal after the surface acoustic wave travels a predetermined distance, and which outputs the third signal, and a signal detector which detects a change in the third signal from the wave generator to sense a substance bound to the wave generator.
    • 声表面波(“SAW”)传感器包括: 使用伪随机序列产生具有预定频率带宽的第一信号的第一信号发生器,产生具有预定频率的第二信号的第二信号发生器,将第一信号与第二信号混合以产生混合的信号混合器 具有预定频率的预定频率的信号作为中心频率;波形发生器,其使用所述混合信号产生表面声波,其在表面声波行进预定距离之后将表面声波转换为第三信号;以及 其输出第三信号,以及信号检测器,其检测来自波发生器的第三信号的变化,以检测与波发生器绑定的物质。