756 ワイヤレス・無給電センサによる構造健全性評価 : SAW デバイスの応力・ひずみ依存性  [in Japanese] Wireless and Batteryless SAW Device Sensor for Structural Health Monitoring  [in Japanese]

Safety evaluation and security control become most important in the complicated IT (information technology) society and human life, therefore, the combination between the multi-functional sensor/actuator devices and telecommunication module will undoubtedly extend toward more wide application fields of intelligent/smart materials and structures. In this study, as a first step toward health monitoring system with active and embedded nondestructive evaluation module etc., wireless sensing and active sensing for smarter design concept of machinery and structures, the SAW (surface acoustic wave) device was developed and its dependency on stress/strain was investigated.