scholarly journals A Seismic Data Acquisition System Based on Wireless Network Transmission

Sensors ◽  
2021 ◽  
Vol 21 (13) ◽  
pp. 4308
Author(s):  
Yanxia Huang ◽  
Junlei Song ◽  
Wenqin Mo ◽  
Kaifeng Dong ◽  
Xiangning Wu ◽  
...  
Keyword(s):  
Data Acquisition ◽  
Piezoelectric Transducer ◽  
Seismic Data ◽  
Low Frequency ◽  
Data Acquisition System ◽  
Acquisition System ◽  
Simply Supported Beam ◽  
Simply Supported ◽  
Network Transmission ◽  
Seismic Data Acquisition

A seismic data acquisition system based on wireless network transmission is designed to improve the low-frequency response and low sensitivity of the existing acquisition system. The system comprises of a piezoelectric transducer, a high-resolution data acquisition system, and a wireless communication module. A seismic piezoelectric transducer based on a piezoelectric simply supported beam using PMN-PT is proposed. High sensitivity is obtained by using a new piezoelectric material PMN-PT, and a simply supported beam matching with the PMN-PT wafer is designed, which can provide a good low-frequency response. The data acquisition system includes an electronic circuit for charge conversion, filtering, and amplification, an FPGA, and a 24-bit analog-to-digital converter (ADC). The wireless communication was based on the ZigBee modules and the WiFi modules. The experimental results show that the application of the piezoelectric simply supported beam based on PMN-PT can effectively improve the sensitivity of the piezoelectric accelerometer by more than 190%, compared with the traditional PZT material. At low frequencies, the fidelity of the PMN-PT piezoelectric simply supported beam is better than that of a traditional central compressed model, which is an effective expansion of the bandwidth to the low-frequency region. The charge conversion, filtering, amplification, and digitization of the output signal of the piezoelectric transducer are processed and, finally, are wirelessly transmitted to the monitoring centre, achieving the design of a seismic data acquisition system based on wireless transmission.

Design and Implementation of VSP Seismic Data Acquisition System Based on Virtual Instrument Technology

2011 ◽  
Vol 135-136 ◽  
pp. 375-379
Author(s):  
Nai Quan Sun ◽  
Yong Mei Yang ◽  
Rui Jing Dong
Keyword(s):  
Data Acquisition ◽  
Virtual Instrument ◽  
Seismic Data ◽  
Data Acquisition System ◽  
Seismic Signal ◽  
Acquisition System ◽  
Near Surface ◽  
Testing Tool ◽  
Instrument Technology ◽  
Seismic Data Acquisition

Near earth surface can be seen as viscoelastic medium. It’s important to collect VSP seismic signal in near-surface.This paper proposed plan designed for VSP seismic data acquisition system based on virtual instrument technology. This design applied the characteristic that the virtual instrument technology has strong capability in single processing and more abundant, distinct expression to VSP acquisition system. This design makes the acquisition system simple, expand easily. And it provides a practical and useful testing tool to logging exploration of near surface project.

scholarly journals LOW COST SEISMIC DATA ACQUISITION SYSTEM BASED ON OPEN SOURCE HARDWARE AND SOFTWARE TOOLS

2020 ◽  
Author(s):  
Arvid Ramdeane ◽  
Lloyd Lynch
Keyword(s):  
Data Acquisition ◽  
Open Source ◽  
Seismic Data ◽  
Low Cost ◽  
Data Acquisition System ◽  
Software Tools ◽  
Acquisition System ◽  
Seismic Data Acquisition ◽  
Private Network ◽  
Open Source Hardware

The University of the West Indies Seismic Research Centre, Trinidad and Tobago, operates a network of over 50 stations for earthquake and volcanic monitoring in the Eastern Caribbean islands. These stations form a seismic network consisting of various types of instrumentation, and communication systems. Over a period of 11 years, the Centre has embarked on an initiative of upgrading and expanding the current network with combinations of broadband and/or strong motion sensors, high dynamic range digitizers and networking equipment to link each station to centralized observatories via high speed digital data transmission medium. To realize such an upgrade and expansion, the Centre has developed a seismic data acquisition system prototype built using open-source hardware and software tools. The prototype is intended to be low-cost using off the shelf hardware components and open-source seismic related software handling data acquisition and data processing in two separate modules. The prototype uses a three-channel accelerometer sensor and can process data into standard MiniSEED format for easy data archiving and seismic data analysis. A global position module provides network time protocol time synchronization within 1 millisecond for accurate timestamping of data. Data can be stored locally on the prototype in twenty-minute data files or securely transferred to a central location via internet with the use of virtual private network capabilities. The prototype is modular in design allowing for components to be replaced easily and the system software can be updated remotely thus reducing maintenance cost.

Multi-Level Radio Network Architecture For Seismic Data Acquisition System

2019 ◽  
Author(s):  
Danis K. Nurgaliev ◽  
Oleg N. Sherstyukov ◽  
Evgeniy Yu. Ryabchenko ◽  
Evgeniy V. Danilov ◽  
Alexey D. Smolyakov ◽  
...  
Keyword(s):  
Data Acquisition ◽  
Seismic Data ◽  
Network Architecture ◽  
Data Acquisition System ◽  
Acquisition System ◽  
Radio Network ◽  
Seismic Data Acquisition ◽  
Multi Level
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