Title :
A mode-locked surface acoustic wave oscillator for sensor applications
Author :
Wagner, J. ; Philipp, M. ; von Schickfus, M.
Author_Institution :
Kirchhoff Inst. fur Phys., Heidelberg, Germany
Abstract :
We present an alternative technique, the mode-locked surface acoustic wave (SAW) oscillator, to measure the response of a SAW delay line sensor. In contrast to a conventional CW-oscillator, all oscillator modes which meet the oscillation condition are excited. Thus the oscillator becomes a pulse oscillator with a repetition rate given by the delay time of the SAW device. Instead of the RF-frequency, the much lower pulse repetition rate is measured.
Keywords :
surface acoustic wave delay lines; surface acoustic wave oscillators; surface acoustic wave sensors; SAW delay line sensor; delay time; mode-locked surface acoustic wave oscillator; oscillator modes; pulse oscillator; pulse repetition rate; repetition rate; sensor applications; Acoustic measurements; Acoustic pulses; Acoustic sensors; Acoustic waves; Delay effects; Delay lines; Oscillators; Pulse measurements; Surface acoustic wave devices; Surface acoustic waves;
Conference_Titel :
Frequency Control Symposium and PDA Exhibition, 2002. IEEE International
Print_ISBN :
0-7803-7082-1
DOI :
10.1109/FREQ.2002.1075885
