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国产高精度DI仪的研制进展
The development of High-precision DI Instrtment
- DOI:
- 作者:
- 范晓勇 滕云田 周勋 周鹤鸣 张炼
- 作者单位:
- 中国北京 100081 中国地震局地球物理研究所
- 关键词:
- 高精度DI仪；磁通门检测系统；无磁经纬仪
High-precision DI Instrument, Magnetic fluxgate detecting system, Non-magnetic theodolite
- 摘要:
- 本文结合DI仪的观测特点，针对高精度DI仪的研制过程进行简要概述，包括磁通门传感器的材料选取、结构设计和检测电路的完成，作为磁检测系统研制的核心部分；选取高精度光学经纬仪，并对其进行无磁化处理，运用了高硬度无磁合金、耐磨无磁滚珠和弹性无磁钢以保证光学经纬仪原有的精度和耐用性。对研制的高精度DI仪的磁检测系统、无磁经纬仪及整机进行了测试，测试结果表明本文研制的DI仪性能指标优于国内现有产品，达到国际先进水平。
According to the observation characteristics of the DI Instrument, the author provides a brief overview to the development process of the apparatus with high accuracy, including selecting material、designing structure and detection circuit for the fluxgate sensor, which covers a core part in researching on the magnetic detection system; Furthermore, a high-precision optical theodolite using non-magnetic alloy with high hardness、hardwearing non-magnetic ball and elastic non-magnetic steel is demagnetized. At last, tests about the magnetic detecting system 、non-magnetic theodolite and entire machine are performed, the results show that the performance index of DI instrument is superior to the domestic product, and up to international advanced level.
