STR Multimeter of electrical parameters, consumption register, True RMS measurements of voltage, current, frequency, active power, apparent power. Este trabalho apresenta um medidor digital de parâmetros elétricos, que tem a capacidade de medir grandezas tais como potência elétrica, fator de potência e. Multimeters are a vital part of any electronics project, but learning how to use one isn& as simple as it looks. Thankfully, the above video from Adafruit walks you.

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Medidores de Grandezas Elétricas – STT · Sultech

This paper deals with the most common methods for determining the dc electrical resistivity in solid materials. A brief overview of the fundamental concepts related to the electrical resistivity on materials is introduced.

Some crucial mistakes regarding the experimental procedure and the appropriated correction factors are found in the literature. Thus, the correction factor for the most common sample geometries were gathered and revised in order to provide an easy way to use and apply them.


A unidade no S.

Para tanto, devemos usar o circuito equivalente apropriado a cada medida experimental desejada. Existem duas grandes categorias destes tipos de medidas: A Figura 4 ilustra o arranjo experimental para a sonda quatro pontas.

A sonda quatro pontas: Determinandose o valor de V para as pontas 2 e 3, temos que: A Tabela 1 apresenta alguns valores calculados de F 1. A Tabela 2 apresenta alguns valores calculados de F 2.

A Tabela 3 apresenta alguns valores calculados de F 3. As pontas da sonda devem estar paralelas ao comprimento “a”, como na figura.

A Tabela 4 apresenta alguns valores calculados de F 4. New York,p. New York,v. A18 D, F, F, D Nova22 Por este motivo, dizse que nenhum material existente na natureza obedece cegamente a lei de Ohm. All the contents of this gandezas, except where otherwise noted, is licensed under a Creative Commons Attribution License.

Services on Demand Journal. How to cite this article.