Title :
Electromagnetic detection of metallic particles
Author_Institution :
University of Oxford, Department of Engineering Science, Oxford, UK
fDate :
11/1/1987 12:00:00 AM
Abstract :
The effect of a conducting permeable spherical particle on the impedance of a solenoid is calculated, and consideration given to maximising the effect for detection purposes. For greatest sensitivity either the resistive change or the reactive change should be optimised, according to the method of detection; the frequency ranges needed to do so are indicated for both magnetic and non-magnetic particles
Keywords :
eddy currents; electric impedance measurement; magnetic devices; magnetic fields; optimisation; solenoids; conducting permeable spherical particle; detection method; frequency ranges; magnetic particles; metallic particles; nonmagnetic particles; optimisation; reactive change; resistive change; solenoid impedance;
Journal_Title :
Physical Science, Measurement and Instrumentation, Management and Education - Reviews, IEE Proceedings A
DOI :
10.1049/ip-a-1.1987.0097
