| 激光多普勒效应地震波实时测量技术的研究 |
| |
| 引用本文： | 黄福祥,杜振辉,李朝阳,吕丽娜,蒋诚志. 激光多普勒效应地震波实时测量技术的研究[J]. 现代仪器, 2004, 10(3): 17-19 |
| |
| 作者姓名： | 黄福祥 杜振辉 李朝阳 吕丽娜 蒋诚志 |
| |
| 作者单位： | 1. 天津大学精密测试技术及仪器国家重点实验室,天津,300072
2. 天津大学无线电厂,天津,300072 |
| |
| 摘 要： | 传统的磁电式地震检波器易于受到电磁干扰、存在非线性 ;提出一种应用激光多普勒技术的地震波检测方法 ,采用优化设计的差动光路结构方案、信号处理单元的适宜带宽。通过F/V转换可以实时地得到被测速度、位移、加速度和频率。实现线性测量的频率范围 1 0～ 1 0 0 0Hz ,动态范围 1 0 0dB。
|
| 关 键 词： | 地震检波器 多普勒效应 地震勘探 振动测量 |
Study on measurement technique of seismic wave in real- time utlizing laser doppler effect |
| |
| Huang Fuxiang Du Zhenhui Li Chaoyang Lv Lina Jiang Chengzhi. Study on measurement technique of seismic wave in real- time utlizing laser doppler effect[J]. Modern Instruments, 2004, 10(3): 17-19 |
| |
| Authors: | Huang Fuxiang Du Zhenhui Li Chaoyang Lv Lina Jiang Chengzhi |
| |
| Affiliation: | Huang Fuxiang 1 Du Zhenhui 1 Li Chaoyang 2 Lv Lina 1 Jiang Chengzhi 1 |
| |
| Abstract: | The magneto-electric geophone has a few troubles such as electromagnetic interference,penmanent magne t’s non-linearity.A new method of seismic acquisition using laser Doppler effect with an optimized differential optical configuration is proposed.The frequency bandwidth is properly determined by analyzing the frequency of the Doppler signal.The velocity,displacement,acceleration and frequency to be measured can be acquired in real-time by F/V converting the FM Doppler signal.A 100dB dynamic range and the linear frequency range of 1 0 to 1000Hz are realized. |
| |
| Keywords: | Geophone Doppler effect Seismic prospecting Vibration measurement |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
