Title :
Magnetic slip ring — Rotary transformer based novel non-contact signal transfer mechanism for spacecraft application
Author :
Chacko, Rinu ; Ravichandran, M.H. ; Sanoop, M.K. ; Sabu, T. ; Sadasivan Achari, V.T. ; Joseph, C.C.
Author_Institution :
Spacecraft Inertial Syst., Trivandrum, India
Abstract :
This paper describes a novel non-contact signal transfer mechanism for transferring multiple signals over the rotating interface through electromagnetic means. This signal transfer mechanism is configured for the transfer of temperature signals of a Spacecraft Mechanism. FE Analysis of rotary transformer was carried out for optimization of size and operating parameters. In the Signal Electronics portion, operating range of JFET is optimized to achieve uniform gain during amplitude modulation. The system was realized and linearity of 2 % and resolution of 1% of Full Scale Division (FSD) was achieved.
Keywords :
amplitude modulation; finite element analysis; junction gate field effect transistors; space vehicle electronics; transformers; FE analysis; JFET; amplitude modulation; magnetic slip ring; noncontact signal transfer mechanism; rotary transformer; signal electronics portion; spacecraft; temperature signals; Amplitude modulation; JFETs; Magnetics; Multiplexing; Power transformers; Sensors; Space vehicles; Amplitude Modulation; Detection; Junction FET(jfet); Platinum Resistance Thermometer(PRT); Rotary Transformer;
Conference_Titel :
Emerging Research Areas: Magnetics, Machines and Drives (AICERA/iCMMD), 2014 Annual International Conference on
Conference_Location :
Kottayam
Print_ISBN :
978-1-4799-5201-4
DOI :
10.1109/AICERA.2014.6908180