6533b7d5fe1ef96bd12644d1
RESEARCH PRODUCT
1/f noise in streaming electrification
D.o. Zmarzlysubject
Materials sciencebusiness.industryTransformer oilStep functionElectrical engineeringRelaxation (physics)Spectral densityCurrent (fluid)businessPolarization (waves)Noise (electronics)Electric chargeComputational physicsdescription
The paper presents the measurement results of the noise generated by static electricity. The tests were performed in the spinning-disk system. Insulation liquid (transformer oil) was used for electrostatic charge generation. The element measured was the current flowing to the disk surface. A stochastic term is present in the current. Existance of this term is due to the complex chemical constitution of the oil. A relaxation of the polar molecules has inertial character. The spreading of a large amount of the relaxation phenomena can lead to forming a compounded spectrum close in shape to 1/f noise. Power spectral density of the polarization was defined for periodic step function. The calculated spectrum is close to experimental results.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2005-08-10 | IEEE International Conference on Dielectric Liquids, 2005. ICDL 2005. |