Design and manufacturing of a research magnetic torquer rod

Microsatellites are the lowest price spacecrafts for lunch to their orbit. As a result, recently they are extensively employed in space missions. In these satellites it has been tried to use less heavy and simple hardware with higher reliability and energy efficiency. Magnetorquers are mainly used in Satellite Attitude Control Systems (ASC) as a control actuator. These actuators generate desired controllable torques. The Magnetorquers have the characteristics of a relatively lightweight and they also require no moving parts, expendables, and complex hardware. These minimum requirements have motivated scientific community to employ actuators in spacecrafts extensively. This paper presents Design procedures and manufacturing of a research magnetorquer in Aerospace Research Laboratory of K.N.Toosi University of Technology, Iran. Firstly, a mathematical model for design of a magnetorquer is explained, and the significant parameters for manufacturing of an efficient actuator are extended. Then Strategic Planning for design of a magnetorquer is expanded. At the end driver and demagnetization circuits are presented and the research magnetorquer with its participant circuits are discussed.

[1]  C. Wheeler,et al.  Simultaneous determination of spacecraft attitude and rates using only a magnetometer , 1996 .

[2]  Raymond A. Serway,et al.  Student solutions manual and study guide for Serway and Jewett's Physics for scientists and engineers , 2004 .

[3]  F. Mesch,et al.  Magnetic components for the attitude control of space vehicles , 1969 .

[4]  Mark L. Psiaki,et al.  Global Magnetometer-Based Spacecraft Attitude and Rate Estimation , 2003 .

[5]  Benjamin Thomas Hailer,et al.  Effect of Heat Treatment on Magnetic and Mechanical Properties of an Iron-Cobalt-Vanadium-Niobium Alloy , 2001 .

[6]  Alessandro Astolfi,et al.  Global Magnetic Attitude Control of Inertially Pointing Spacecraft , 2005 .

[7]  Yuri B. Shtessel,et al.  Satellite attitude control using only magnetorquers , 1998, Proceedings of the 1998 American Control Conference. ACC (IEEE Cat. No.98CH36207).

[8]  R. Jackson,et al.  The influence of the method of demagnetization on the reversible permeability of a high-permeability nickel-iron alloy , 1958 .

[9]  S. Lagrasta,et al.  Normal mode magnetic control of LEO spacecraft, with integral action , 1996 .

[10]  J. Lee,et al.  On Determining Dipole Moments of a Magnetic Torquer Rod — Experiments and Discussions , 2002 .

[11]  F. Lobkowicz,et al.  Physics for Scientists and Engineers, Vol. I , 1976 .

[12]  Marcel J. Sidi,et al.  Spacecraft Dynamics and Control: A Practical Engineering Approach , 1997 .

[13]  Hirobumi Saito,et al.  Studies on Magnetic Attitude Control System for the REIMEI Microsatellite , 2006 .

[14]  Christopher D. Hall,et al.  Spacecraft Dynamics and Control , 2002 .

[15]  James R. Wertz,et al.  Spacecraft attitude determination and control , 1978 .

[16]  D. Wolf,et al.  Essentials of Electromagnetics for Engineering , 2000 .