Title :
1/f noise in ceramic superconductors and granular resistors
Author :
Takagi, Keiji ; Mizunami, Toru ; Okayama, Hideyuki ; Yang, Shiyuan
Author_Institution :
Dept. of Electr. Eng., Kyushu Inst. of Technol., Japan
fDate :
6/1/1990 12:00:00 AM
Abstract :
The current noise in some components of granular structure was measured. The samples were ceramic superconductors, carbon-black graft-polymer resistors, and positive temperature coefficient (PTC) ceramics. All noise spectra were of the 1/f type. The temperature dependence of the noise level was measured and compared with the temperature dependence of the resistance. It is shown that in these components the temperature coefficient of the resistance is related to the noise level as predicted by the temperature fluctuating model
Keywords :
ceramics; electron device noise; high-temperature superconductors; random noise; resistors; thermistors; 1/f noise; PTC ceramics; TCR; carbon-black graft-polymer resistors; ceramic superconductors; current noise; granular resistors; high temperature superconductors; noise spectra; temperature dependence; temperature dependence of noise; temperature dependence of resistance; temperature fluctuating model; Ceramics; Current measurement; Electrical resistance measurement; Granular superconductors; Noise level; Noise measurement; Predictive models; Resistors; Superconducting device noise; Temperature dependence;
Journal_Title :
Components, Hybrids, and Manufacturing Technology, IEEE Transactions on
