Title :
Development of a Small and Wide-Range Three-Phase Current Sensor Using a MI Element
Author :
Kudo, T. ; Tsuji, N. ; Asada, T. ; Sugiyama, S. ; Wakui, S.
Author_Institution :
Fuji Electr. Adv. Technol. Co. Ltd., Tokyo
Abstract :
A three-phase electric current sensor is described in this paper using the magneto-impedance sensor. Experimental results show a low energy consumption of 20 mW and a wide measuring range of 1:600 obtained by using both the positive/negative equality alternating bias and the unequality bias. Hence, the measurement range of the developed compact size current sensor is 15 times as wide as that of the conventional sensor.
Keywords :
electric current measurement; magnetic sensors; compact size current sensor; energy consumption; equality alternating bias; magneto-impedance sensor; power 20 mW; three-phase electric current sensor; unequality bias; Current measurement; Energy consumption; Iron; Magnetic cores; Magnetic field measurement; Magnetic sensors; Magnetic shielding; Saturation magnetization; Thin film sensors; Transformer cores;
Conference_Titel :
Magnetics Conference, 2006. INTERMAG 2006. IEEE International
Conference_Location :
San Diego, CA
Print_ISBN :
1-4244-1479-2
DOI :
10.1109/INTMAG.2006.376418
