A Low Cost Lock-In Amplifier for Ac Polarography

Alan P. Uthman,W. Stephen Woodward,Charles N. Reilley

A Low Cost Lock-In Amplifier for Ac Polarography

1982

Alan P. Uthman
W. Stephen Woodward
Charles N. Reilley

ABSTRACT The electronics, construction and use of a low cost lock-in amplifier suitable for AC polarography are described. The device operates from 10 Hz to 10 kHz in 1,2,5 multiples of frequency. Components for the unit cost about $150.

Keywords:

Amplifier
Analytical chemistry
Unit cost
Polarography
Lock-in amplifier
Electrical engineering
Direct-coupled amplifier
Electronics
Electronic engineering
Engineering

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