SENSOR DEVICE, VIBRATION SENSING SYSTEM, SENSOR UNIT, INFORMATION PROCESSING DEVICE, VIBRATION SENSING METHOD, AND PROGRAM

摘要

A sensor device comprises: a first sensor group (13) in which a plurality of first vibration sensors for sensing vibration accelerations in one direction with respect to an object to be sensed are arranged to face the same direction; a phase difference calculation unit (220) which, on the basis of a plurality of first signals indicating the vibration accelerations respectively detected by the plurality of first vibration sensors included in the first sensor group (13), calculates a first phase difference indicating the phase difference between the plurality of first signals; and an acceleration calculation unit (230) which, using the first phase difference and the plurality of first signals, calculates a vibration acceleration in a first direction perpendicular to a surface on which the plurality of first vibration sensors are arranged, and a vibration acceleration in a second direction parallel to the surface on which the plurality of first vibration sensors are arranged.