Construção de uma fonte de corrente e de uma sonda para medida de condutividade pelo método da sonda de quatro pontas

Química Nova

Olacir Alves Araújo²  Wilson Botter Júnior¹  Jesiel Freitas Carvalho¹  Ediron Lima Verde¹ 

[1] ,Universidade Estadual de Goiás Unidade Universitária de Ciências Exatas e Tecnológicas Anápolis GO

关键词: four-point probe method;    conductivity;    conducting polymer;   

DOI  :  10.1590/S0100-40422003000500020

来源: SciELO

【 摘 要 】

This paper describes the construction of an eletrical current source and of a probe to be used in the measurement of eletrical conductivity through a four-point probe method. These pieces of equipments can be obtained at the low price of US$ 50.00 and are adequate for eletrical conductivity measurements in the semiconductor range, that is from 10-1 to 10-6 S cm-1.

【 授权许可】

CC BY-NC   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License