FREQUENCY-DOMAIN DESCRIPTION OF A LOCK-IN AMPLIFIER

被引：163

作者：

SCOFIELD, JH

机构：

来源：

AMERICAN JOURNAL OF PHYSICS | 1994年 / 62卷 / 02期

关键词：

D O I：

10.1119/1.17629

中图分类号：

G40 [教育学];

学科分类号：

040101 ; 120403 ;

摘要：

The basic principles behind the operation of a lock-in amplifier are described. Particular emphasis is placed on looking at the frequency components of the signal present at the various stages of the lock-in during a typical measurement. The description presented here has been used successfully to explain lock-in operation to upper-level laboratory students at Oberlin College.

引用

页码：129 / 133

页数：5

共 9 条

[1]

CHAMPENEY DC, 1973, FOURIER TRANSFORMS T, P122

[2]

Dunlop R. A., 1988, EXPT PHYS, P102

[3]

Preston D. W., 1991, ART EXPT PHYSICS, P367

[4] AC METHOD FOR MEASURING LOW-FREQUENCY RESISTANCE FLUCTUATION SPECTRA [J].