무선 압력 측정 시스템을 이용한 고속차량의 풍압 특성 연구

초록

Pressure wave in high speed train tunnel causes ear-discomfort for passenger and micro-pressure wave for tunnel exit. To measure the pressure characteristics of external and internal pressure of train, cable-connected measuring system is used to transmit/receive signal. To do this, We have to make a hole or socket on carbody to connect external sensors to on board DAQ equipment. In a long size tunnel, it is almost impossible to set cable in tunnel. In this study, We have developed wireless pressure measuring system and measured the pressure characteristics in high speed train tunnel and had a good results compared with that of conventional measuring system.