Title :
Remote sensing of mechanical properties of materials using a novel ultrasound transducer and signal processing
Author :
Murayama, Yoshinobu ; Constantinou, Christos E. ; Omata, Sadao
Author_Institution :
Coll. of Eng., Nihon Univ., Fukushima, Japan
fDate :
3/1/2005 12:00:00 AM
Abstract :
An ultrasound-based remote sensing method to evaluate the mechanical properties of materials is presented. This method consists of a disk-shaped, piezoelectric transducer, operating at its resonance frequency, and a phase-shifted, feedback circuit. Mechanical parameters are derived by analyzing the signal contained in the phaseshifted values of the reflected signal. It is concluded that, using this novel transducer system and signal processing, remote mechanical measurements can be made. Such measurements obviate the need to apply the force-deformation approach and may be used to enable stiffness imaging.
Keywords :
acoustic measurement; acoustic signal processing; deformation; elastic constants; piezoelectric transducers; remote sensing; ultrasonic transducers; disk-shaped piezoelectric transducer; force-deformation approach; mechanical properties; phase-shifted feedback circuit; remote sensing; resonance frequency; signal processing; stiffness imaging; ultrasound transducer; Feedback circuits; Mechanical factors; Piezoelectric transducers; Remote sensing; Resonance; Resonant frequency; Signal analysis; Signal processing; Ultrasonic imaging; Ultrasonic transducers; Algorithms; Computer-Aided Design; Elasticity; Equipment Design; Equipment Failure Analysis; Materials Testing; Mechanics; Physical Stimulation; Reproducibility of Results; Sensitivity and Specificity; Signal Processing, Computer-Assisted; Stress, Mechanical; Transducers; Ultrasonography;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
DOI :
10.1109/TUFFC.2005.1417266
