| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve the sensing accuracy of an elastic wave sensor. <P>SOLUTION: An elastic wave sensor 1 includes: a piezoelectric body 2; a plurality of electrodes 3 and 4 formed on the piezoelectric body 2; a reaction portion 5 formed on a transmission passage between the plurality of electrodes 3 and 4 on the piezoelectric body 2; and a detecting portion (not shown) for detecting characteristics of elastic waves excited by the electrode 3. The reaction portion 5 has a fiber-shape. By the characteristics, a surface area of the reaction portion 5 is enlarged, and the mass of a detection object adsorbed by the reaction portion 5 is increased. Therefore, the sensing accuracy of the elastic wave sensor 1 is improved. <P>COPYRIGHT: (C)2013,JPO&INPIT |
