js6666金沙安全下载海洋生物系统和神经科学研究所讲座

报告主题：受海洋生物启发的现代探测技术-仿鱼耳超敏感袖珍探震仪等的研究

报告人：张云峰 副教授
            美国马里兰大学土木和环境工程学

时间：2009-7-22  下午2：00

地点：水产与生命学院 A101

张云峰副教授简介：
      中国同济大学本科毕业、清华大学硕士，美国加州理工大学博士，美国麻省理工博士后， 2006年美国国家自然基金会事业成就奖 得者，已获马里兰大学终身衔教职。

Abstract

In this talk, Dr. Zhang will present his research work on piezoelectric paint sensor and a design of ultra-sensitive miniaturized infrasound motion sensor that mimics the inner ear of fish and their applications. The first part of this talk is about flexible piezoelectric paint and its application to ultrasound wave based acoustic emission sensor for structural crack detection. Nature has produced extraordinary sensory systems in biological species that exceed the capabilities of a broad range of man-made sensors. Understanding the physical, chemical, and biological processes that are responsible for these sensory abilities may produce a blueprint for replicating or reconstructing them in man-made devices with high sensitivity and minimum power-dependence. Sensitivity to infrasound motion may be a widespread ability among aquatic organisms, and has also been reported in cephalopods and crustaceans. Certain fish species have a tremendous ability in sensing infrasound, even down to well below 1 Hz. The second part of this talk is on a design of ultra-sensitive infrasound sensor that if successfully developed, may give early warning signals of an imminent geologic hazard event such as landslides. The sensing principle of this infrasound sensor gains inspiration from the ultra-sensitivity of the auditory system of certain fish species in detecting infrasound.