长稳时钟实现高精度电法勘探

摘要

By using of long-time stable clock, the latest development of land 3D electromagnetic prospecting instrument can realize zero offset among different clock, ensure steady sampling rate and sampling accuracy thus valid sampling data which made a great breakthrough in our nation's active high-power electromagnetic prospecting instrument design. It not only largely reduces the cost, volume and weight of the electromagnetic prospecting instrument, but also improves the accuracy, consistency and reliability of the instrument dramatically. Its application is also improved to a wider extent.%最新研制出的陆上三维电磁仪使用了长稳时钟技术，实现了多个时钟无误差的要求，确保传输速率的稳定性和准确性，保证了采集数据的有效性，使我国对有源大功率电磁勘探仪器的研究取得了突破性的发展，不仅仪器体积、重量、成本大大降低，而且电磁勘探的精度、一致性、可靠性得到了提升，使其应用范围与领域得到了扩展。