| Biography | |
|---|---|
 Prof. Junhui Hu Nanjing University of Aeronautics and Astronautics, China |
|
| Title: Ultrasonically Catalyzed Gas Sensing & Its Application in Single-Sensor E-Noses | |
| Abstract: High-performance gas sensing and electronic noses have huge potential applications in human health diagnoses, industrial control, quality control, environmental safety, the internet of things, etc. Our research group proposed the ultrasonically catalyzed gas sensing method in 2017 and then successfully applied the method into the high-performance sensing and single-sensor electronic noses. This report reviews the detailed research results in this respect. The contents of this report include two parts. In the first part, working principle of the ultrasonic catalysis in gas sensing is given and explained, as well as the structure and characteristics of gas sensors catalyzed by airborne ultrasound. In the second part, the gas identification principle and algorithm of single-sensor e-noses that are based on the airborne ultrasound catalyzed gas sensor, are given and explained, as well as the structure, system design method and gas identification characteristics. It shows that the ultrasonic catalytic effect can not only effectively decrease the lower sensing limit of conventional gas sensors and increase their sensitivity by one order of magnitude, but also provide a new gas identification principle which has the merits such as single sensing element, room temperature operation, potential of higher system sensitivity, etc. | |
| Biography: Junhui Hu received his Ph.D. Degree from Tokyo Institute of Technology, Tokyo, Japan, in 1997, and B. E. and M. E. degrees in electrical engineering from Zhejiang University, Hangzhou, China, in 1986 and 1989, respectively. Currently he is a Chang-Jiang Distinguished Professor, China, and the deputy director of State Key Laboratory of Mechanics and Control of Mechanical Structures (NUAA), China. Dr. Hu was an assistant and associate professor at Nanyang Technological University, Singapore, from 2001 to 2010. His research interest is in ultrasonic sensors and actuators, nano fabrication, ultrasonic micro/nano manipulations, etc. He is the author and co-author of more than 300 papers and disclosed patents, including more than 100 full research papers published in SCI journals and 1 editorial review in an international journal. He is also the sole author of monograph book “Ultrasonic Micro/Nano Manipulations: Principles and Examples” (2014, World Scientific, London New Jersey Singapore). Dr. Hu won the Paper Prize from the Institute of Electronics, Information and Communication Engineers (Japan) as the first author in 1998, and his research work has been highlighted by 7 international scientific media with a total view number > 35000 (Mendeley) He is an editorial board member of four international journals, and board member of Chinese Acoustical Society. He was once awarded the title of valued reviewer by Sensors and Actuators A: Physical and Ultrasonics. He has given 18 keynote/invited lectures at international conferences, and is the chairman of International Conference on Mechanical Control and Automation 2016, International Conference on Electric Engineering and Automation Control 2017, and honorary chairman of International Workshop on Piezoelectric Materials and Applications in Actuators 2011. | |
