METHOD FOR EVALUATING CERAMIC SINTERED BODY, AND METHOD AND DEVICE FOR EVALUATING LAMINATED PIEZOELECTRIC CERAMICS ELEMENT

摘要

PROBLEM TO BE SOLVED: To evaluate displacement of a laminated piezoelectric ceramics element without applying a prescribed voltage.;SOLUTION: This method for evaluating the laminated piezoelectric ceramics element acquired by sintering a laminate formed by laminating a piezoelectric ceramics layer precursor and an internal electrode precursor together is characterized by having a step for irradiating the laminate or the laminated piezoelectric ceramics element subjected to removal treatment of an organic binder included in the internal electrode precursor with an inspection light, and a step for observing the reflected light of the inspection light from the laminate or the laminated piezoelectric ceramics element.;COPYRIGHT: (C)2007,JPO&INPIT