Frequency Domain Analysis of an Electrical Substitution Radiometer

[+] Author and Article Information
A. Oliveira

Department of Electrical Engineering, Federal University of Bahia, 40.210-630, Salvador, BA, Brazil

P. C. Lobo

Department of Mechanical Engineering, Federal School of Engineering, Itajubá, 37.500-000 Itajubá, MG, Brazil

G. S. Deep, R. C. S. Freire, J. S. da Rocha Neto

Department of Electrical Engineering, Federal University of Paraiba, Cx. Postal 10004, 58109-970, Campina, Grande, PB, Brazil

J. Sol. Energy Eng 121(2), 110-115 (May 01, 1999) (6 pages) doi:10.1115/1.2888147 History: Received February 01, 1998; Revised December 01, 1998; Online February 14, 2008


A small signal analysis of a feedback radiation meter circuit is presented with a view to estimate its effective response time, taking into account parameters of a practical operational amplifier: The amplifier input offset voltage is shown to considerably influence the stable operation of the circuit. Numerical examples and simulation results are included.

Copyright © 1999 by The American Society of Mechanical Engineers
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