Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1982-03-12
1984-08-21
Miller, J. D.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
73517R, 310313B, 310329, H03H 976
Patent
active
044672357
ABSTRACT:
Disclosed is a surface acoustic wave interferometer, including a substrate on which are disposed a first reflector and a second reflector so as to define a multimode resonant cavity therebetween. A third reflector is positioned on the substrate so that a single mode resonant cavity is defined between the second and third reflectors. An input transducer generates surface acoustic waves in the single mode cavity, while an output transducer detects the interference between surface acoustic waves in the multimode and single mode cavities. A base is rigidly affixed to the substrate in the region of the single mode cavity so that a force applied to the substrate will alter the surface acoustic wave propagation characteristics within the multimode cavity.
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Ivanov, et al., An Interferometric Acoustooptic Method for Measuring High-Frequency Acoustic Losses in Isotropic and Anisotropic Materials with High Q-Factor, IEEE Trans. Sonics and Ultrasonics, vol. SU-26, p. 362, (1979).
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Murray, et al., SAW Components Answer Today's Signal Processing Needs, Electronics, p. 120, (Sep. 8, 1981).
De Wames Roger E.
Staples Edward J.
Deinken John J.
Hamann H. Fredrick
Malin Craig O.
Miller J. D.
Rebsch D. L.
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