PROBLEM TO BE SOLVED: To efficiently perform amplification of a target vibration by removing vibrations other than the target vibration to suppress occurrence of noise or howling in a vibration-electricity conversion device of an electric type vibration amplification device.SOLUTION: In a vibration-electricity conversion device including a vibration collection part having a vibration-electricity conversion element and a vibration attenuation container for covering the vibration collection part so that vibrations other than a target vibration does not reach the vibration collection part, the vibration collection part is held by the vibration attenuation container via a vibration absorbing material, and the vibration collection part is provided to be positioned on or protruded from a plane same as a plane formed by an opening end part of the vibration attenuation container.COPYRIGHT: (C)2014,JPO&INPIT【課題】電気式振動増幅装置の振動電気変換装置において、目的外振動を除去してノイズやハウリングの発生を抑制して目的振動の増幅を効率的に行う。【解決手段】振動電気変換素子を持つ振動収集部と振動収集部を覆うようにして目的外振動が到達しないようにする振動減衰容器とを具備する振動電気変換装置において、振動減衰容器が振動吸収材を介して振動収集部を保持するようにし、振動収集部が振動減衰容器開口端部の形成する面と同一面上に位置するか突出するように設ける。【選択図】図1
