Title :
On line measurement of cable insulation wall thickness and eccentricity using eddy current
Author :
Jiabin, Wen ; Hong, Zhao
Author_Institution :
Harbin Univ. of Sci. & Technol., China
Abstract :
In this paper an on line measurement system of cable insulation wall thickness and eccentricity using eddy current was described. A magnetic sensor was designed to form a divergent field, which rotate on the surface of the cable insulation wall. The characterization of probes was optimized by means of 3D limit element analysis of field boundary. The sensor performance can be quantified and the signal relation was given theoretically. The integration of sensor and mechanics and electronic system to an instrument was also reported.
Keywords :
analogue-digital conversion; cable insulation; eddy current losses; finite element analysis; magnetic sensors; microprocessor chips; 3D limit element analysis; analogue-digital conversion; cable insulation wall thickness; eccentricity; eddy current; field boundary; magnetic sensor integration; microprocessor chips; probes; signal relation; Cable insulation; Current measurement; Eddy currents; Magnetic analysis; Magnetic field measurement; Magnetic sensors; Probes; Sensor phenomena and characterization; Sensor systems; Thickness measurement;
Conference_Titel :
Properties and Applications of Dielectric Materials, 2003. Proceedings of the 7th International Conference on
Print_ISBN :
0-7803-7725-7
DOI :
10.1109/ICPADM.2003.1218544
