电子机械工程
電子機械工程
전자궤계공정
ELECTRO-MECHANICAL ENGINEERING
2012年
3期
1-6,11
,共7页
声表面波%射频识别%标签%叉指换能器
聲錶麵波%射頻識彆%標籤%扠指換能器
성표면파%사빈식별%표첨%차지환능기
surface acoustic wave%radio frequency identification%tag%inter digital transducer
声表面波（Surface Acoustic Wave，SAW）是沿物体表面传播的、能量集中于表面附近的一种弹性波。基于SAW技术实现的射频识别（Radio Frequency Identification，RFID）是应用现代电子学、声学、微电子工艺技术和雷达信号处理技术等的新成就，具有纯无源，阅读距离大，制造成本低，可在高温差、强电磁干扰等恶劣环境下工作等特点，可应用于交通运输、工农业生产制造及监测等各个领域。它是基于集成电路芯片RFID的重要技术补充，逐渐受到了业界的广泛关注。文中基于SAW-RFID的工作原理介绍了SAW-RFID的特点及优势，分析讨论了SAW标签的编码方式、发展状况及关键技术问题等。
聲錶麵波（Surface Acoustic Wave，SAW）是沿物體錶麵傳播的、能量集中于錶麵附近的一種彈性波。基于SAW技術實現的射頻識彆（Radio Frequency Identification，RFID）是應用現代電子學、聲學、微電子工藝技術和雷達信號處理技術等的新成就，具有純無源，閱讀距離大，製造成本低，可在高溫差、彊電磁榦擾等噁劣環境下工作等特點，可應用于交通運輸、工農業生產製造及鑑測等各箇領域。它是基于集成電路芯片RFID的重要技術補充，逐漸受到瞭業界的廣汎關註。文中基于SAW-RFID的工作原理介紹瞭SAW-RFID的特點及優勢，分析討論瞭SAW標籤的編碼方式、髮展狀況及關鍵技術問題等。
성표면파（Surface Acoustic Wave，SAW）시연물체표면전파적、능량집중우표면부근적일충탄성파。기우SAW기술실현적사빈식별（Radio Frequency Identification，RFID）시응용현대전자학、성학、미전자공예기술화뢰체신호처리기술등적신성취，구유순무원，열독거리대，제조성본저，가재고온차、강전자간우등악렬배경하공작등특점，가응용우교통운수、공농업생산제조급감측등각개영역。타시기우집성전로심편RFID적중요기술보충，축점수도료업계적엄범관주。문중기우SAW-RFID적공작원리개소료SAW-RFID적특점급우세，분석토론료SAW표첨적편마방식、발전상황급관건기술문제등。
Surface acoustic wave （SAW） is an acoustic wave traveling along the surface of a material exhibi- ting elasticity, with most energy concentrated nearby the surface. SAW-based radio frequency identification （RFID） technology is a new achievement involving the modern electronics, acoustics, microelectronic process technology and radar signal processing technology, etc. It is characterized by full passivity, wide-reading range, low cost and can operate under harsh environments, such as high temperature difference, strong elec- tromagnetic interference, etc. It can be used in transport and communications, industrial and agricultural manufacturing and monitoring, etc. As an important complement to the RFID based on integrated circuit chip, it gradually receives increasing attention. In this paper characteristics and advantages of SAW-RFID are intro- duced based on its operation principle, the encoding modes, development situation and the key technological problems of SAW tags are analyzed and discussed.
