Title :
Swept frequency acoustic time domain reflection measurements
Author :
Frederick, Scott K. ; Chou, Mitch ; Malocha, Donald C.
Author_Institution :
Consortium for Appl. Acoustic Technol., Central Florida Univ., Orlando, FL, USA
Abstract :
An inverse Fourier transform of frequency domain S11 reflection measurements obtained from a cube shaped piezoelectric material produces highly accurate time domain reflection data with the aid of mathematics and processing. A completely automated system has been developed to produce time domain reflection measurement over a temperature range of 100°C. The target of the process is the analysis and extraction of elastic constants of new man-made piezoelectric materials such as langasite and langatite
Keywords :
Fourier transforms; automatic testing; elastic constants; piezoelectric materials; ultrasonic materials testing; ultrasonic reflection; 200 C; automated system; cube shaped piezoelectric material; elastic constants; frequency domain S11 reflection measurements; inverse Fourier transform; langasite; langatite; swept frequency acoustic reflection measurements; time domain pulse echoes; time domain reflection data; time domain reflection measurement; Acoustic measurements; Acoustic reflection; Fourier transforms; Frequency domain analysis; Frequency measurement; Mathematics; Piezoelectric materials; Shape measurement; Temperature measurement; Time measurement;
Conference_Titel :
Frequency and Time Forum, 1999 and the IEEE International Frequency Control Symposium, 1999., Proceedings of the 1999 Joint Meeting of the European
Conference_Location :
Besancon
Print_ISBN :
0-7803-5400-1
DOI :
10.1109/FREQ.1999.841455
