| 摘要 |
PROBLEM TO BE SOLVED: To provide an ultrasonic cleaner for reducing uneven cleaning. SOLUTION: In the ultrasonic cleaner, a fiber-reinforced resin plate composed of a binder resin and a plurality of high-modulus fibers arranged in lines parallel to the bottom surface or external side surface of a washing tank in the binder resin is fixed on the surface, and the surface of the fiber-reinforced resin plate positioned opposite to the washing tank is fixed with the tops or bottoms of a plurality of columnar piezoelectric vibrators, each of which is provided with a pair of electrodes at symmetric positions on the surface of a vertically long piezoelectric column. COPYRIGHT: (C)2006,JPO&NCIPI
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