scholarly journals Dual-high-frequency from single-piezoelectric crystal for ACE degradation by hybrid advanced oxidation UV-sonochemistry process

2021 ◽  
pp. 105731
Author(s):  
Fabiola Mendez-Arriaga ◽  
Chad D. Vecitis
Keyword(s):  
High Frequency ◽  
Advanced Oxidation ◽  
Piezoelectric Crystal

Study on the Combination of Multilayer Piezoelectric Seismometer

2012 ◽  
Vol 503-504 ◽  
pp. 1108-1111
Author(s):  
Ya Min Xing ◽  
Sheng Hu Liu
Keyword(s):  
Frequency Response ◽  
High Frequency ◽  
Detection Method ◽  
Seismic Exploration ◽  
Piezoelectric Crystal ◽  
High Frequency Response ◽  
Improve Accuracy ◽  
Field Test Result ◽  
Test Result ◽  
Frequency Phase

The key problem on seismic exploration is how to improve accuracy and resolution, A kind of multilayer piezoelectricity acceleration geophone is studied and discussed. carried on its amplitude frequency, phase-frequency characteristic theoretically, obtained the primary factor of the influence on frequency response, and improved in the piezoelectric crystal choice and geophone structure. The theory and the field test result indicated that, this piezoelectricity acceleration geophone has advantages over conventional geophones in frequency spectrum, resolution and high-frequency response, it is one better detection method, and the upgrade product of traditional geophone.

Design and Research on Piezoelectric Acceleration Geophone

2012 ◽  
Vol 468-471 ◽  
pp. 826-830 ◽  
Author(s):  
Ya Min Xing ◽  
Sheng Hu Liu ◽  
Dong Xu Wang
Keyword(s):  
High Frequency ◽  
Detection Method ◽  
Low Frequency ◽  
Response Characteristic ◽  
Piezoelectric Crystal ◽  
Field Test Result ◽  
Test Result ◽  
Higher Sensitivity ◽  
Frequency Phase ◽  
Piezoelectric Acceleration

A kind of piezoelectricity acceleration geophone is studied and discussed. carried on its amplitude frequency, phase-frequency characteristic theoretically, obtained the primary factor of the influence on frequency response, and improved in the piezoelectric crystal choice and geophone structure. The theory and the field test result indicated that, this piezoelectricity acceleration geophone has better response characteristic on low frequency and the high-frequency as well as a higher sensitivity, it is one better detection method.

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