Output characteristics of giant magnetostrictive force sensor under the effect of various factors

In this paper, a novel giant magnetostrictive force sensor which uses a giant magnetostrictive materials rod as the sensitive element was studied. The sensor realised static force and dynamic force measuring through an integrated linear hall sensor and a pickup coil respectively. Based on a deep analysis of the relationship between magnetic flux density measured by hall sensor and actual magnetic flux density in giant magnetostrictive materials rod, combining the non-linear constitutive equations and electromagnetic induction law, the paper expounded the principle of simultaneously measuring static and dynamic force. Based on this, the influence laws of bias magnetic field, pre-tightening force, pickup coil turns, length of giant magnetostrictive materials rod, amplitude of exciting force and other factors on sensor’s output characteristics are determined through experimental and theoretical analysis. The research results provide a technical way for further research of giant magnetostrictive force sensor.

[1]  A. Olabi,et al.  Design and application of magnetostrictive materials , 2008 .

[2]  Joseph Sarkis,et al.  A study of enablers of agile manufacturing , 2009 .

[3]  M. Anjanappa,et al.  A high speed magnetostrictive mirror deflector , 2009 .

[4]  O. Geoffroy,et al.  Practical and Theoretical Investigations of a Rotating Coilless Actuator Using the Inverse Magnetostrictive Effect , 2010, IEEE Transactions on Magnetics.

[5]  Qingxin Yang,et al.  A Magneto-Mechanical Strongly Coupled Model for Giant Magnetostrictive Force Sensor , 2006, IEEE Transactions on Magnetics.

[6]  Anirban Chaudhuri,et al.  Design, test and model of a hybrid magnetostrictive hydraulic actuator , 2009 .

[7]  Siu Wing Or,et al.  Electrical resistance load effect on magnetoelectric coupling of magnetostrictive/piezoelectric laminated composite , 2010 .

[8]  Tang Zhi-feng.  Self-sensing principle of magnetostrictive actuator , 2007 .

[9]  T.A. Baudendistel,et al.  A Novel Inverse-Magnetostrictive Force Sensor , 2007, IEEE Sensors Journal.

[10]  Abdul-Ghani Olabi,et al.  Design of a magnetostrictive (MS) actuator , 2008 .

[11]  Marcelo J. Dapino,et al.  A dynamic model for a displacement amplified magnetostrictive driver for active mounts , 2010 .

[12]  D. Brabazon,et al.  Calibration and characterisation with a new laser-based magnetostriction measurement system , 2009 .

[13]  Huifang Liu,et al.  Researches on the computer digital control system of giant magnetostrictive actuator , 2009 .

[14]  Jia Zhenyuan.  Study of control system of giant magnetostrictive micro-displacement actuator , 2004 .

[15]  Daining Fang,et al.  Anisotropic magnetostriction for Tb0.3Dy0.7Fe1.95 alloys under magnetomechanical loading , 2009 .

[16]  H. Mehmet Uras,et al.  A magnetostrictive force sensor , 1994 .

[17]  Wang Fuji.  Dynamics model and numerical simulation of giant magnetostrictive actuator , 2008 .