对地震监测系统的数字化器的原型实施
Emad B Helal1, Omar M Saad1, M Sami Soliman1
1Department of Seismology, National Research Institute of Astronomy and Geophysics (NRIAG), Helwan 11421, Egypt.
Sensors (Basel, Switzerland)
|August 29, 2024
概括
本研究介绍了一种用于地震监测的高精度地震数字化仪. 该原型改进了地震事件参数准确性和时间,在现场测试中展示了可靠的性能.
科学领域:
- 地质物理学 地质物理学
- 地震学 地震学
- 仪器化 仪器化 仪器化
背景情况:
- 地震数字化器对于地震监测系统至关重要.
- 现有系统在准确性和数据处理方面可能存在局限性.
- 高准确度的地震数据采集对于准确的事件检测和分析至关重要.
研究的目的:
- 设计和实施一个高精度的地震数字化仪.
- 评估原型的性能与商业仪器相比.
- 将数字化器集成到现有的国家地震网络中.
主要方法:
- 开发了一种包含模拟数字转换器 (ADC),GPS接收器和微处理器的数字化器.
- 实施有限冲动响应 (FIR) 过器,以减小采样速率.
- 用于实时监控和参数调整的图形用户界面 (GUI) 的设计.
- 数据传输使用TCP/IP协议进行无损传输.
- 与埃及国家地震网络 (ENSN) 集成的校准和现场测试.
主要成果:
- 原型数字化器准确地捕获地震参数,包括事件到达时间,振幅和频率内容.
- 与ENSN的整合显示了改进的地震事件参数解决方案.
- 实地测试结果显示,性能与校准商用数字化仪相比,相当.
- 该系统位于环保的外中,以MiniSEED格式输出数据.
结论:
- 开发的地震数字化仪符合地震监测的高精度标准.
- 该原型为地震数据采集提供了可靠和准确的替代方案.
- 该系统通过改进数据质量和参数估计来增强国家地震网络的能力.
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