A New Hydrogen-Maser Time and Frequency Standard at Sheshan VLBI Station of Shanghai Observatory

Abstract

A new kind of hydrogen-maser time and frequency Standard was installed this September at sheshan 25-meter radio telescope in Shanghai, for very long baseline interferometry (VLBI) experiments. This standard is a readily transportable, rugged and completely integrated frequency standard. The entire system is engineered as a unit, and all electronics were mechanically and electrically integrated with the physical portion into the overall design. This paper describes its design feature and structure as well as the measured results of its performance. Its applications and data in VLBI experiment are also included.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1989
Accession Number
ADA518804

Entities

People

  • C. F. Lin
  • G. X. Jiang
  • H. X. Huang
  • J. F. Lu
  • W. H. Luo
  • Z. C. Zhai

Tags

Communities of Interest

  • Advanced Electronics
  • Sensors

DTIC Thesaurus Topics

  • Atomic Beam Masers
  • Barometric Pressure
  • Buildings And Structures
  • Cavity Resonators
  • Crystal Oscillators
  • Electronic Equipment
  • Environmental Tests
  • Frequency
  • Frequency Bands
  • Frequency Standards
  • Hydrogen
  • Magnetic Fields
  • Masers
  • Observatories
  • Oscillators
  • Standards
  • Tuning

Fields of Study

  • Engineering

Readers

  • Astronomy and Astrophysics.
  • Software Engineering
  • Software Engineering.

Technology Areas

  • Microelectronics
  • Space