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Extendible-Retractable Electric Field Measurement Antenna for IMP J

机译:Imp J的可伸缩可伸缩电场测量天线

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摘要

The 6ystem EMR has designed provides a unique method for precisely controlling the deployment and retraction rate of the antennas by using a hysteresis synchronous motor whose angular velocity is a direct function of the driving frequency. To provide a precise drive source, EMR has designed a unique circuit which utilizes a stable square wave to generate a waveform which drives the motor at nearly sine wave efficiency. A significant item in EMR's design is the use of a storage reel with a helical groove and associated traveling guide for antenna storage. This results in the antenna wire always being stored in the same configuration, preventing creep wire distortion and wire slump.

著录项

  • 作者

    Wayne Larrick;

  • 作者单位
  • 年度 1973
  • 页码 1-54
  • 总页数 54
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 工业技术;
  • 关键词

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