| 摘要 |
A SAW/BAW hybrid sensor is a sensor that combines the ease of interfacing with a higher frequency of SAW device and the response, precision, ease of use with liquid applications and dynamic range of a BAW sensor. The SAW device can condition an interrogation signal before passing it to the BAW sensor. For example, the SAW device can act as an impedance matcher or a frequency shifter. The hybrid sensor can be created by connecting the electrodes of a BAW sensor to a SAW device transducer. The hybrid sensor can be interrogated via any of the common interrogation circuits such as a grid dip oscillator or a RADAR type interrogation system.
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