European Journal of Applied Engineering and Scientific Research
	
		
			
				 Editorial - European Journal of Applied Engineering and Scientific Research ( 2021)  Volume 9,  Issue 12 
			 
			
		   
	 	
		  
        Decisive Dynamic Features from Complex Sensing Signals
								Junhui Hu						 
			
			    
                        
             
            
			
							Nanjing University of Aeronautics and Astronautics, China
												
 
			  		
		  			
			
Received: 01-Dec-2021    
    
    
Published:
22-Dec-2021
		
						
				
					Abstract
					Gas identification is one of the most important functions of a gas sensor system. To identify gas species from sensing signals without gas flow control such as pumps or mass flow controllers, it is necessary to extract decisive dynamic features from complex sensing signals due to uncontrolled airflow. For that purpose, various analysis methods using system identification techniques have been proposed, whereas a method that is not affected by a gas input pattern has been demanded to enhance the robustness of gas identification. Here we develop a novel gas identification protocol based on a transfer function ratio (TFR) that is intrinsically independent of a gas input pattern.
									 
			 
					
						Biography
			Junhui Hu received his Ph.D. Degree from Tokyo Institute of Technology, Japan, in 1997, and B. E. and M. E. degrees from Zhejiang University, China, in 1986 and 1989, respectively. Currently he is a Chang-Jiang Distinguished Professor, and the deputy director of a State Key Laboratory in Nanjing University of Aeronautics and Astronautics, China. His research interest is in ultrasonic sensors and actuators, ultrasonic manipulations, etc. He is the author and co-author of more than 300 papers, disclosed patents and books, including more than 100 SCI journal papers. He is also the sole author of monograph â??Ultrasonic Micro/Nano Manipulationsâ?.