Title :
Research on inductance model of giant magnetostrictive actuator
Author :
Li, Liyi ; Zhang, Chengming ; Yan, Baiping ; Cao, Jiwei
Author_Institution :
Dept. of Electr. Eng., Harbin Inst. of Technol., Harbin, China
Abstract :
The emphasis of this paper is to research the dynamic inductance model of giant magnetostrictive actuator (GMA). First, the relative permeability of giant magnetostrictive material (Terfenol-D) under different pressures and different magnetizations are tested. Then, the inductance parameter of GMA is computed based on the above relative permeability results and the trends of inductance considering relative permeability are concluded. At last, a prototype of GMA is design and manufactured. The static magneto-strain could be 1250ppm and the dynamic response time is about 0.8ms.
Keywords :
electric actuators; giant magnetoresistance; inductance; magnetic permeability; magnetisation; magnetoresistive devices; Terfenol-D; dynamic inductance model; dynamic response time; giant magnetostrictive actuator; giant magnetostrictive material; inductance parameter; magnetization; permeability; pressure; static magneto-strain; Actuators; Coils; Delay; Inductance; Magnetic field induced strain; Magnetic materials; Magnetostriction; Permeability; Prototypes; Testing;
Conference_Titel :
Electromagnetic Field Computation (CEFC), 2010 14th Biennial IEEE Conference on
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4244-7059-4
DOI :
10.1109/CEFC.2010.5481349
