The Technology > SAW

Types/Operation of Surface Acoustic Wave (SAW) Devices

       
    Rayleigh Surface Acoustic Wave Delay Line

Starting with the Rayleigh surface acoustic wave (SAW) delay line, we can see that propagating wave is confined to the top surface of the substrate. For a particle on the surface of the substrate, the propagation of the Rayleigh wave will cause the particle to experience a vertically aligned elliptical motion. Read More

      Surface Transverse Wave (STW)

Since there is no vertical component of displacement, the STW could theoretically be used for liquid-based applications. In a practical sense, use as a liquid-based sensor is very unlikely. Read More
      Love Mode

The term "Love Mode" has been used in the sensor literature because the use of a thin film layer for energy trapping is analogous to the use of a thick layer in the "true" Love Mode device. Read More

   







Viscosity, Gas and Physical Sensors