POWER SOURCE AND SENSOR DEVICE COMPRISING THE SAME

A power source and a sensor device comprising this power source device, in which vibrational energy travelling in the space is utilized as an energy source and which can be used for a long time of period and supplies more stable power. The power source for supplying power to a load comprises a coupler (310) for receiving the vibrational travelling in the space and an electric double layer capacitor (341) for storing therein the vibrational energy received by the coupler as electric power.