关键词: 地震检波器, 高分辨率地震勘探, 阻尼, 灵敏度, 频率特性

Abstract: A new composite geophone, with a number of advantages such as high sensitivity, heavy damping ratio and low output impedance, is developed based on micro-electronic technology, which is adopted to modify the geophone frequency characteristics in the main frequency region to approach the acceleration characteristics by increasing damping of the geophone. The in-situ testing results show that the data recorded by the composite geophone have high S/N ratio, high visual frequency and strong energy, and the geophone has the ability to compensate the high frequency energy and to widen the bandwidth of seismic wavelet, and can be used for high resolution seismic explorations.

Key words: geophone, high resolution seismic exploration, damping, sensitivity, frequency characteristic