scholarly journals Wireless Surface Acoustic Wave Pressure For Seismic Monitoring Systems

2018 ◽  
Vol V6 (02) ◽  
Author(s):  
S. Shalini ◽  
S. Lakshmi ◽  
B. Aravindan ◽  
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Seismic Monitoring ◽  
Monitoring Systems ◽  
Wave Pressure ◽  
Seismic Monitoring Systems

Highly sensitive thick diaphragm-based surface acoustic wave pressure sensor

2021 ◽  
pp. 112935
Author(s):  
Maria Muzamil Memon ◽  
Shuliang Pan ◽  
Jiang Wan ◽  
Tao Wang ◽  
Wanli Zhang
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Pressure Sensor ◽  
Wave Pressure ◽  
Highly Sensitive

Basic principles for building seismic monitoring systems in rockburst-hazardous coal seam mining

2021 ◽  
pp. 8-12
Author(s):  
E. E. Razumov ◽  
◽  
S. M. Prostov ◽  
G. D. Rukavishnikov ◽  
S. N. Mulev ◽  
...  
Keyword(s):  
Seismic Activity ◽  
Average Energy ◽  
Seismic Monitoring ◽  
Acoustic Properties ◽  
Signal Frequency ◽  
Monitoring Systems ◽  
Seismic Events ◽  
Seismic Monitoring Systems ◽  
Seismic Sensors ◽  
Seam Mining

The main directions of development of seismic monitoring systems in underground mineral mining are analyzed. The expediency of passive registration of natural seismic activity is proved, which provides prediction of geodynamic phenomena by locating the centers of seismic events and determining their energy level. The methods of active seismic monitoring (seismic tomography, cross-borehole survey, recording of seismic signal from a rock-breaking tool) are technically more difficult to implement. The promising methods for processing seismic information are geolocation, neural network technology, cluster analysis, and integration with numerical stress–strain analysis of and changes in acoustic properties of rock mass. The configuration of the platform developed at VNIMI and the GITS seismic monitoring system, which includes from 6 to 12 three-component seismic sensors installed permanently in wells or on pedestals, is described. The detailed layouts of seismic sensors at recording points and in gateways in extraction panels are presented. The main technical characteristics of GITS are given: the signal frequency range is 0.1–1000 Hz, the minimum recorded signal level is 0.01 mV. The main test data of GITS in Komsomolskaya mine of Vorkutaugol are described: the average annual levels of seismic activity and energy of seismic events are found to be relatively stable; the relationship between seismic event with the maximum total energy and the alternating increment in the relative criterion is defined, and the local increase in the average energy of a single event in time from the moment the main roof caving is identified. Aimed to substantiate the regional and local prediction criteria of probability of geodynamic events caused by confining pressure, VNIMI implements integrated research in mines in different regions.

Landslide and Seismic Monitoring Systems

2018 ◽  
pp. 43-62
Author(s):  
Alexander Ginzburg ◽  
Valentina Svalova ◽  
Alexey Nikolaev ◽  
German Postoev ◽  
Andrey Kazeev
Keyword(s):  
Seismic Monitoring ◽  
Monitoring Systems ◽  
Seismic Monitoring Systems

ZnO/quartz structure potentiality for surface acoustic wave pressure sensor

2006 ◽  
Vol 128 (1) ◽  
pp. 78-83 ◽  
Author(s):  
A. Talbi ◽  
F. Sarry ◽  
M. Elhakiki ◽  
L. Le Brizoual ◽  
O. Elmazria ◽  
...  
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Pressure Sensor ◽  
Wave Pressure
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