PROBLEM TO BE SOLVED: To miniaturize a transmission terminal even if vibration is detected by a sensor element with a movable electrode.SOLUTION: The transmission terminal includes a movable electrode 14M to which ground potential is applied, and fixed electrodes 14P and 14N fixed to face the movable electrode 14M as sensor elements 14. The movable electrode 14M is swingably supported and electrically connected to a ground electrode GN of a capacitor CV located at the upper end of the capacitor CV mounted on a substrate P by using a circuit element for detection signals which vary to positive or negative to the ground potential GND from the fixed electrodes 14P and 14N as the movable electrode 14M swings in response to the vibration.COPYRIGHT: (C)2013,JPO&INPIT【課題】可動電極を持つセンサ素子で振動を検出する場合でも、送信端末の小型化を実現する。【解決手段】センサ素子14として、接地電位が印加される可動電極14Mと、この可動電極14Mと対向して固定された固定電極14P,14Nとを有し、振動に応じた可動電極14Mの揺動により、接地電位GNDに対して正負に変化する検知信号を固定電極14P,14Nから出力する回路素子を用い、この可動電極14Mを、基板Pに実装された蓄電素子CVの上端に位置する当該蓄電素子CVの接地電極GNに対して、揺動自在に支持するとともに電気的に接続する。【選択図】 図1
