| 摘要 |
PROBLEM TO BE SOLVED: To provide a stirrer which has a short propagation route of a sonic wave and is capable of enhancing the stirring efficiency of a liquid by suppressing the attenuation of the sonic wave, and an analyzer. SOLUTION: The stirrer is equipped with a container for holding a liquid being a stirring target and a surface acoustic wave element for irradiating a liquid with the sonic wave and stirring the liquid by the sonic wave. The analyzer is provided with this stirrer. The surface acoustic wave element 22 of the stirrer 20 has a piezoelectric substrate 22a and the sounding part 22b arranged on the piezoelectric substrate between the wall of the region, which comes into contact with the liquid of the container 7, and the piezoelectric substrate to produce the sonic wave for stirring the liquid. An acoustic matching layer is arranged between the surface acoustic wave element 22 and the container and the sounding part 22b is protected by the acoustic matching layer. COPYRIGHT: (C)2007,JPO&INPIT
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