| 摘要 |
PROBLEM TO BE SOLVED: To provide a dynamic balance testing machine capable of improving in durability. SOLUTION: Base parts 61B of a support member 61 for supporting a work W are fixed on the vibration detection parts 64. The vibration detection parts 64 are composed of the plates 641 formed with metal plates on which the base members 61B of the support members 61 are fixed and the piezoelectric members 642 provided on the rear faces of the plate members 641. The piezoelectric members 642 are sheet shaped members, on both the surfaces of the PVDF plastic sheets of piezoelectric resin, electrodes of metallic films are formed. Vertical force from the support members 61 supporting the test object is distributed to the all area of the piezoelectric members 642, so the load per unit area becomes small. Consequently, the improvement in the durability of the dynamic balance testing machine can be attained, as well as application of the piezoelectric elements to the dynamic balance testing machine for measuring the work W of heavy weight can be possible. COPYRIGHT: (C)2005,JPO&NCIPI
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