Magnetically excited flexural plate wave apparatus

Details Magnetically excited flexural plate wave apparatus Magnetically excited flexural plate wave apparatus

1996-10-21

1998-11-17

Chapman, John E.

Measuring and testing

Vibration

Resonance, frequency, or amplitude study

73 2406, 73702, G01H 306

Patent

active

058362037

ABSTRACT:
A non-piezoelectric flexural plate wave apparatus having meander-line transducers mounted on a non-piezoelectric membrane. A static magnetic field is directed perpendicularly to the conductive legs of the transducers in the plane of the membrane. Single-port, two-port, resonant, non-resonant, eigenmode, and delay-line modes may be employed.

REFERENCES:
patent: 4248092 (1981-02-01), Vasile et al.
patent: 5003822 (1991-04-01), Joshi
patent: 5119343 (1992-06-01), Katahara
S. W. Wenzel, B. A. Martin and R. M. White, "Generalized Lamb-Wave Multisensor," Proceedings of the 1988 Ultrasonics Symposium, pp. 563-567 (1988).
S. W. Wenzel and R. M. White, "Flexural Plate-Wave Sensor: Chemical Vapor Sensing and Electrostrictive Excitation," Proceedings of the 1989 Ultrasonics Symposium, pp. 595-598 (1989).
S. W. Wenzel and R. M. White, "Flexural Plate-Wave Gravimetric Chemical Sensor," Sensors and Actuators, vol. A21-23, pp. 700-703 (1990).
J. W. Grate, S. W. Wenzel and R. M. White, "Flexural Plate Wave Devices for Chemical Analysis," Analytical Chemistry, vol. 63, pp. 1552-1561, Aug. 1, 1991.

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