Title :
Eddy-current Type Proximity Sensor with Closed Magnetic Circuit Geometry
Author :
Koibuchi, Koichi ; Sawa, Koichiro ; Honma, Takashi ; Hayashi, Takumi ; Ueda, Kuniyoshi ; Sasaki, Hiroshi
Author_Institution :
Dept. of Syst. Design Eng., KEIO Univ., Kanagawa
Abstract :
Eddy-current type proximity sensor is a non-contact type sensing device to detect the approach of a conductor. This paper investigates electromagnetic properties of the proximity sensor with magnetic flux shield which has closed magnetic circuit geometry by FEM analysis and experiments. Although it has closed magnetic flux path, its sensing property is enhanced compared with the conventional proximity sensor
Keywords :
conductors (electric); eddy currents; finite element analysis; magnetic circuits; magnetic flux; magnetic sensors; magnetic shielding; FEM analysis; closed magnetic circuit geometry; conductor; eddy-current type proximity sensor; electromagnetic properties; magnetic flux shield; noncontact type sensing device; Coils; Conductivity; Conductors; Eddy currents; Geometry; Magnetic circuits; Magnetic flux; Magnetic properties; Magnetic sensors; Q measurement;
Conference_Titel :
Electromagnetic Field Computation, 2006 12th Biennial IEEE Conference on
Conference_Location :
Miami, FL
Print_ISBN :
1-4244-0320-0
DOI :
10.1109/CEFC-06.2006.1633043
