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Doctoral Thesis
DOI
10.11606/T.54.1979.tde-18082014-171054
Document
Author
Full name
Jan Frans Willem Slaets
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 1979
Supervisor
Title in Portuguese
Novo método para medida da permitividade complexa em ultra-baixas frequências
Keywords in Portuguese
Constante dielétrica
Instrumentação eletrônica
Ultra-baixa frequencia
Abstract in Portuguese
No presente trabalho descreve-se: a determinação da permitividade dielétrica complexa através de medidas de fase; a aplicação de técnicas de correlação e análise em séries de Fourier, para a determinação da fase, amplitude, qualidade e deformação do sinal atrasado; os circuitos eletrônicos do medidor de fase e do oscilador de U.B.F. programável; a programação desenvolvida em FORTRAN IV e MACRO-ASSEMBLER para o computador PDP 11/45, utilizado para operar o medidor de fase e o oscilador de U.B.F.
Title in English
New method for measuring the complex permittivity at ultra-low frequencies
Keywords in English
Dielectric constant
Electronic instrumentation
Ultra-low frequency
Abstract in English
In the present work we describe: the determination of the complex dielectric permittivity by phase shift measurements; the application of correlation and Fourier series analyses to determine the phase shift, amplitude, quality and deformation of the shifted signal; the designed electronic hardware of the phase meter and programmb1e ultra-low frequency oscillator; the developed software written in FORTRAN IV and MACRO- ASSEMBLER for PDP 11/45, to operate the phase meter
 
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JanSlaetsD.pdf (2.22 Mbytes)
Publishing Date
2014-08-19
 
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