A simple technique for a.c. conductivity measurements

Bulletin of materials science

K Subbarangaiah¹  K Raghavendra Rao¹  R Padma Suvarna¹ 

[1] Department of Physics and Electronics, Sri Krishnadevaraya University, Anantapur 515 003, India$$Department of Physics and Electronics, Sri Krishnadevaraya University, Anantapur 515 003, IndiaDepartment of Physics and Electronics, Sri Krishnadevaraya University, Anantapur 515 003, India$$

关键词: A.c. conductivity;    complex impedance spectroscopy;    bulk resistance;    grain boundaries.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

An inexpensive, indigenous and a simple electronic instrument based on voltage follower, current�?�to�?�voltage converter, zero crossing detector and a phase detector has been developed for measurement of a.c. conductivity. Real and imaginary parts of complex impedance are determined for a given sample as a function of frequency and the given sample is represented by a pure electronic model.

【 授权许可】

Unknown