Abstract
Recently, electric is used by many tools and toys as a driving source. On the other hand, tools and toys are usually applied with an external force when we are using these equipments. If we can use these force to generate a power, we can use these tools without battery. Therefore, we invent a power generation equipment with the small size by using these force. We use piezoelectric element which can generated voltage by the applied force. We invent the cantilever with a hinge to efficiently convey the applied force. The output voltage is measured when the uniform stress fluctuation is applied to this cantilever. We invent the cantilever with a hinge to efficiently convey the applied force. The relationship between the structure of the cantilever and the voltage is investigated. Higher output voltage is observed for the cantilever with hinge comparing to the cantilever without hinge. The output voltage is increasing with decreasing the height of the hinge. Moreover, the experimental value and the theoretical value are in qualitatively agreement.
