High-frequency operation of surface-acoustic-wave muiltielectrode transducers

1974 ◽  
Vol 10 (19) ◽  
pp. 395 ◽  
Author(s):  
H. Engan
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
High Frequency ◽  
High Frequency Operation

scholarly journals Picosecond Photoacoustic Metrology of SiO2 and LiNbO3 Layer Systems Used for High Frequency Surface-Acoustic-Wave Filters

2017 ◽  
Vol 7 (8) ◽  
pp. 822 ◽  
Author(s):  
Delia Brick ◽  
Erkan Emre ◽  
Martin Grossmann ◽  
Thomas Dekorsy ◽  
Mike Hettich
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
High Frequency ◽  
Wave Filters ◽  
Surface Acoustic Wave Filters

scholarly journals Demodulation Technique Based on Laser Interference for Weak Photo-Acoustic Signals on Water Surface

2018 ◽  
Vol 8 (12) ◽  
pp. 2423 ◽  
Author(s):  
Xiaolin Zhang ◽  
Hongjie Mao ◽  
Wenyan Tang
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
High Frequency ◽  
Water Surface ◽  
Processing System ◽  
Detection Accuracy ◽  
Laser Interference ◽  
Characteristic Ratio ◽  
Frequency Detection ◽  
Interference Signals

To detect underwater sound-generating targets, a water surface acoustic wave laser interference and signal demodulation technique is proposed in this paper. The underlying principle of this technique involves casting a laser beam onto the water surface disturbed by an underwater acoustic source and creating interference between lights reflected by the surface and reference lights. A data acquisition and processing system was employed to obtain water surface acoustic wave information from the interference signals by means of demodulation, thus allowing detection of the underwater target. For the purpose of this study, an interference detection platform was set up in an optical dark chamber. High-frequency water surface fluctuations were introduced in the reference optical path as the phase generated carriers to create laser interference signals in two different paths, which received demodulation based on an improved arc tangent demodulation algorithm and characteristic ratio algorithm, respectively, in view of their different frequencies. Water surface wave information was then derived from such low-frequency and high-frequency signals. According to test results, in the frequency range of 200 Hz–10 kHz, the frequency detection accuracy was better than 1 Hz. The amplitude measurements exhibited high repeatability, with a standard deviation lower than 2.5 nm. The theory proposed in this paper is therefore experimentally verified with good results.

High-frequency surface acoustic wave propagation in nanostructures characterized by coherent extreme ultraviolet beams

2009 ◽  
Vol 94 (9) ◽  
pp. 093103 ◽  
Author(s):  
Mark E. Siemens ◽  
Qing Li ◽  
Margaret M. Murnane ◽  
Henry C. Kapteyn ◽  
Ronggui Yang ◽  
...  
Keyword(s):  
Wave Propagation ◽  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
High Frequency ◽  
Extreme Ultraviolet ◽  
Acoustic Wave Propagation

scholarly journals High-frequency surface acoustic wave device based on thin-film piezoelectric interdigital transducers

2004 ◽  
Vol 85 (10) ◽  
pp. 1757-1759 ◽  
Author(s):  
A. K. Sarin Kumar ◽  
P. Paruch ◽  
J.-M. Triscone ◽  
W. Daniau ◽  
S. Ballandras ◽  
...  
Keyword(s):  
Thin Film ◽  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
High Frequency ◽  
Surface Acoustic Wave Device ◽  
Acoustic Wave Device ◽  
Wave Device

High-frequency surface acoustic wave devices based on LiNbO3∕diamond multilayered structure

2005 ◽  
Vol 87 (21) ◽  
pp. 213503 ◽  
Author(s):  
E. Dogheche ◽  
D. Remiens ◽  
S. Shikata ◽  
A. Hachigo ◽  
H. Nakahata
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
High Frequency ◽  
Multilayered Structure ◽  
Acoustic Wave Devices

High Frequency Surface Acoustic Wave Filter Using ZnO/Diamond/Si Structure

1994 ◽  
Vol 33 (Part 1, No.1A) ◽  
pp. 324-328 ◽  
Author(s):  
Hideaki Nakahata ◽  
Kenjiro Higaki ◽  
Akihiro Hachigo ◽  
Shinichi Shikata ◽  
Naoji Fujimori ◽  
...  
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
High Frequency ◽  
Wave Filter
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