Title :
Phase noise measurements of flexural plate wave ultrasonic sensors
Author :
Baer, R.L. ; Costello, B.J. ; Wenzel, S.W. ; White, R.M.
Author_Institution :
Hewlett-Packard Labs., Palo Alto, CA, USA
Abstract :
The phase noise spectrum of a flexural plate wave (FPW) ultrasonic sensor has been directly measured. The typical phase noise of an FPW sensor was observed to vary as 1/f at frequencies below 60 Hz, with a 1-Hz intercept of between -90 dB and -107 dB (rad2/Hz). This level of noise is consistent with the frequency jitter that is observed when the FPW sensor is configured in an oscillator
Keywords :
detectors; random noise; surface acoustic wave devices; ultrasonic devices; 1/f noise; 60 Hz; flexural plate wave ultrasonic sensors; frequency jitter; oscillator; phase noise spectrum; Acoustic measurements; Acoustic noise; Acoustic sensors; Frequency; Noise level; Noise measurement; Phase measurement; Phase noise; Sensor phenomena and characterization; Ultrasonic variables measurement;
Conference_Titel :
Ultrasonics Symposium, 1991. Proceedings., IEEE 1991
Conference_Location :
Orlando, FL
DOI :
10.1109/ULTSYM.1991.234178
