Development of Active Noise Control system using Piezo Ceramic loudspeakers

摘要

We developed a new active noise control (ANC) system that uses ceramic loudspeakers. We also simulated the noise distributed over a railway vehicle by using detailed vibration data of the internal panel. This paper presents an outline of the above new ANC system, the basic principle and the deadening effect, and predicts the effect to deaden the internal noise of railway vehicles by the ANC system.