Metal-bonded Co-ferrite composites for magnetostrictive torque sensor applications

被引：121

作者：

Chen, Y ^{[1
]}

Snyder, JE ^{[1
]}

Schwichtenberg, CR ^{[1
]}

Dennis, KW ^{[1
]}

McCallum, RW ^{[1
]}

Jiles, DC ^{[1
]}

机构：

[1] Iowa State Univ, Ames Lab, Ames, IA 50011 USA

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1999年 / 35卷 / 05期

关键词：

ferrite; torque sensor; magnetostriction; magnetomechanical effect;

D O I：

10.1109/20.800620

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A new class of magnetomechanical sensor materials, Co-ferrite (CoO . Fe2O3) and metal-bonded (Ag, Ni, Co) Co-ferrite composites, has been investigated. These materials exhibited magnetostriction in excess of 200 ppm and high d(33) (partial derivative lambda/partial derivative H)(sigma) coefficient, 1.3X10(-9) A(-1)m, at low applied field (<100kA/m). Selected compositions were formed into test samples in the form of rings brazed to stainless steel through-shafts. Changes of surface axial magnetic field in response to applied torque as high as 64 AN(-1)m(-2) were observed for a demonstration sample of dimensions 25 mm OD, 12.5 mm ID, and 8 mm high, A hysteresis of +/- 0.5 N.m was observed. These materials appear to be promising candidates for torque sensors, and other magnetostrictive sensor and actuator applications.

引用

页码：3652 / 3654

页数：3

共 11 条

[1] ANISOTROPY AND MAGNETOSTRICTION OF SOME FERRITES [J].

BOZORTH, RM ;

TILDEN, EF ;

WILLIAMS, AJ .

PHYSICAL REVIEW, 1955, 99 (06) :1788-1798

[2] Effect of the elastic modulus of the matrix on magnetostrictive strain in composites [J].

Chen, Y ;

Snyder, JE ;

Schwichtenberg, CR ;

Dennis, KW ;

Falzgraf, DK ;

McCallum, RW ;

Jiles, DC .

APPLIED PHYSICS LETTERS, 1999, 74 (08) :1159-1161

[3]

CHEN Y, 1998, 43 ANN C MAGN MAGN M

[4]

Clark A. E., 1980, Ferromagnetic materials. A handbook on the properties of magnetically ordered substances, vol.1, P531, DOI 10.1016/S1567-2719(80)01010-4

[5]

FLEMING WJ, 1989, 890482 SOC AUT ENG

[6] A TORQUE TRANSDUCER UTILIZING A CIRCULARLY POLARIZED RING [J].