RESEARCH  ACTIVITY      

 


 

 Research Goal :

 

        development of ultrasonic sensors and actuators using mechanical vibrations

 


 

 Publications :

 

        36 papers published in international journals

 

        35 papers presented in international conferences

 

         1 book article coauthored and published in U.K.

 

        12 patents coinvented and registered in U.S.

 


 

 Research Projects :

 

        Vibration and acoustic analysis and design on ultrasonic sensors

         (August 2016 - August 2017)

 

        Level-switch sensor using ultrasound and vibration

         (May 2016 - April 2017)

 

        Ultrasonic transducers of clamp-on type

         (January 2014 - January 2015)

 

        Vibration characteristics of circular piezoelectric transducers

         (December 2012 - November 2013)

 

        High-precision ultrasonic level meter

         (June 2012 - May 2013)

 

        Effect of interior viscous fluid on the propagation of elastic waves in a pipe

         (December 2011 - November 2012)

 

        Development of ultrasonic cleaning model for removing clogging in a printer head

         (July 2008 - June 2009)

 

        Ultrasonic flowrate sensor

         (January 2008 - December 2009)

 

        Modeling and analysis for human-body dynamics of an upper limb

         (November 2007 - October 2009)

 

        Improvement of an ultrasonic module in a shower-type ultrasonic cleaner

         (September 2007 - November 2007)

 

        Signal processing for robot control by using electromyography

         (July 2007 - June 2008)

 

        Sensor for monitoring the viscosity variation in an engine oil

         (December 2006 - June 2007)

 

        Vibration transmission through the varying cross-section of a waveguide

         (May 2006 - April 2007)

 

        Structural dynamic analysis of an ankle in a robotic gait orthosis

         (December 2005 - Mayl 2006)

 

        Mechanical analysis of joints in a robotic gait orthosis

         (August 2005 - May 2006)

 

        Development of an ultrasonic motor by combining piezoelectric devices

         (July 2005 - April 2006)

 

        Vibration characteristics of piezoelectric transducers under pre-pressure

         (May 2005 - April 2006)

 

        Ultrasonic Flowmeter (April 2004 -January 2005)

                   Sponsored by General Electric, Carried out at Pennsylvania State University

 

        Development of piezoelectric counting sensors

         (May 2003 - February 2004)

 

        Vibration characteristics of a spherical piezoelectric transducer

         (April 2002 - March 2003)

 

        Development of a waveguide for an ultrasonic flowmeter used in a high-temperature fluid

         (November 2001 - October 2002)

 

        Radial vibration of cylindrical piezoelectric transducers

         (May 2000 - April 2001)

 

        Ray-method application for the analysis of ultrasonic cleaning

         (May 2000 - April 2001)

 

        Development of an ultrasonic viscometer using a torsional vibrator
         (September 1999 - August 2001)

 

        Flexural vibration of a bar with periodically nonuniform material properties

         (May 1998 - May 1999)

                  

 


 

 Professional Affiliation :

 

         ASME (American Society of Mechanical Engineers)   Member