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

fYear

2010

fDate

9-12 May 2010

Firstpage

1

Lastpage

1

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Field Computation (CEFC), 2010 14th Biennial IEEE Conference on

Conference_Location

Chicago, IL

Print_ISBN

978-1-4244-7059-4

Type

conf

DOI

10.1109/CEFC.2010.5481349

Filename

5481349