西南石油大学学报(自然科学版) ›› 1990, Vol. 12 ›› Issue (4): 121-125.DOI: 10.3863/j.issn.1000-2634.1990.04.015

• 论文 • 上一篇    下一篇

二阶串联谐振电路通频带的简捷测量、计算方法

罗旭光
  

  1. 石油开发系
  • 收稿日期:1990-05-07 修回日期:1900-01-01 出版日期:1990-11-20 发布日期:1990-11-20

A SIMPLE MEASURE AND CALCULATION OF SECOND ORDER SERIES RESONANCE CIRCUIT ALL-FREQUENCY BAND

Luo Xu-guang
  

  1. Dept. of Oil Exploration
  • Received:1990-05-07 Revised:1900-01-01 Online:1990-11-20 Published:1990-11-20

摘要:

在中频范围内,二阶串联谐振电路通频带的常规测、算方法是利用LC串联电路频率特性曲线,描点测△f=f2-f1,或者由给定电路参数,建立二阶方程,算出f2和f1,求△f,测量和计算都相当麻烦。本文从通频带定义出发,导出了测量和计算通频带的简捷公式,即△f=f_0/Q,和△f=R/2πL。用前式测量,后式直接代参数计算,非常简便。且简捷方法与常规方法比较表明,前者测量误差小于后者。

关键词: 通频带, 串联谐振, 品质因数, 频率特性

Abstract:

According to the definition of all-frequency band, a simple formula for measuring and calculating all-frequency band is derived in this paper, i.e. △f=fo/Q and △f=R/2πL. The former is used for measurement and the latter for calculation. The error obtained is smaller than that by the general method.


Key words: Second Order Series Resonance Circuit, All-frequency band