超音波測位システムのフェーズシフトアレイによる測位領域の拡大

抄録

　In this study, we investigated the introduction of phased shift array transmitters for expanding the positioning range of ultrasonic positioning systems. The result of numerical simulation shows the number of transmitters to three or more, sufficient sound pressure intensity can be obtained for distance measurement. In addition, we constructed a phased shift array using three transmitters. In the distance measurement experiment, it shows to change the phase direction, similar to the results of the numerical simulation.