波谱学杂志 ›› 1984, Vol. 1 ›› Issue (4): 339-344.

• 研究论文 • 上一篇    下一篇

场效应管核电四极共振谱仪

丘海明, 冯镇业   

  1. 中山大学无线电电子学系
  • 收稿日期:1984-04-01 出版日期:1984-06-05 发布日期:2018-01-23
  • 基金资助:
    中国科学院科学基金会资助项目

A SUPER-REGENERATIVE NQR SPECTROMETER USING FIELD EFFECT TRANSISTORS

Qiu Haiming, Feng Zhenye   

  1. Department of Electronics, Zhongshan University
  • Received:1984-04-01 Online:1984-06-05 Published:2018-01-23

摘要: 本文描述了一台场效应管超再生核四极共振谱仪的工作原理和性能;谱仪的振荡检波级是作者研制的一个频率覆盖范围较宽、灵敏度较高的场效应管(FET)超再生振荡检波器。文中还给出用本谱仪显示、记录的部分化学样品中的35Cl核和37Cl核的核四极共振(NQR)谱,并对使用场效应管的超再生振荡检波器的灵敏度作初步探讨。

Abstract: A Super-regenerative NQR Spectrometer has been described. The Super-regenerative oscillator constructed by field effect transistors works in wider frequency range and has higher sensitivity, The 35Cl and 37Cl NQR Spectra of Some shemical samples recorded with this spectrometer are shown in this paper, and the advantages of using field effect transistors for NQR are discussed.