Electromagnetic Devices for Motion Control and Signal Processing

1 Overview of the Development and Application of Electrical Machines.- 2 Generalized AC Machines for the Design of Motion Control Devices.- 2.1 The vector property of the GEM system.- 2.2 The coil spatial mmf sinusoidal distribution.- 2.3 Principal devices as GEM design derivatives.- 3 Magnetic Transmission Line.- 3.1 Introduction: Distributed parameter electro-magnetic circuits.- 3.2 Electro-magnetic system differential equations.- 3.3 The core slot slashing concept.- 3.4 Teeth air gap harmonic analysis.- 3.5 Thin-walled rotary cylinder model (TCR).- 3.6 Rotary cylinder equivalent circuit as an analogue to an electrical transmission line.- 3.7 The TCR and SCR self-inductance computational approach.- 3.8 Magnetic transmission line equations for sinusoidal systems.- 3.9 Torque function for TCR and SCR motors.- 3.10 Teeth variable permeance torque estimate.- 3.11 Permanent magnet switch phase synchronic motor.- 3.12 Hysteresis motor: principal physics and computational approach.- 3.13 Electro-magnetic circuit for a generalized electrical machine geometry (GEM).- 3.14 Induction tachogenerator (ITG).- 3.15 Resolver-Motor.- 3.16 Sin-Cos transformer magnetic circuit in general form.- 4 Motor Drive Circuits.- 4.1 Brief overview of closed-loop motor drive circuits.- 4.2 Self-oscillatory synchronic motor drive system.- 4.3 AC motor-magnetic amplifier integrity.- 4.4 Analytical consideration of the MMA concept.- 4.5 Simplified engineering approach.- 4.6 The over-synchronic speed motor control concept.- 5 Technological Inaccuracy in the Performance of Small Electrical Machines.- 5.1 Errors due to eccentricity of the internal rotation core.- 5.2 Errors due to external core air gap elliptical irregularity.- 5.3 Thin-walled rotor thickness irregularity.- 5.4 Desirable aspects of geometrical irregularity.- 6 Theory of Precise Sinusoidal Windings.- 6.1 Slotwise coil mmf analysis.- 6.2 A design methodology for symmetric two-phase coils.- 6.3 Condition to obtain the maximal coil Q-factor.- 6.4 Two-pole sin-cos system.- 6.5 Poly-pole coil sin-cos transformer.- 6.6 Determination of slot numbers to minimize undesirable harmonics.- 6.7 Ultra periodicity lithography systems.- 6.8 U-syne encoder concept.- 6.9 High-resolution brushless encoders.- 6.10 Digital interpolation concepts for encoder resolution multiplication.- 7 Induction Ferromagnetic Core Position Sensors.- 7.1 Slotwise brushless miniature systems.- 7.2 Multi-periodical brushless system "Indusyn".- 7.3 Brushless permag DC motor integrated position encoder.- 7.4 Long-range angular linearity induction potentiometers (LIP).- 7.5 LIP with a range of ±160 degrees.- 7.6 "Sliding magnetic contact" induction potentiometer.- 7.7 Unipolar type of brushless system of ±90 LIP range.- 7.8 Brushless differential transformer type of LIP ±90.- 7.9 DC brushless potentiometer by using magneto-resistors.- 7.10 DC logometric torque actuator on the basis of the ±90 degrees LIP.- 8 Spherical AC Electro-machine Systems as Free Gyro Instruments.- 8.1 Introduction.- 8.2 Analytical model of the spherical gyro-magnetic suspension system.- 8.3 Rotor current differential equation.- 8.4 Force computation.- 8.5 Impedance match condition in view of superconductivity.- 8.6 Feedback control.- 9 Electro-magnetic Strip Transmission Line Devices.- 9.1 General introduction.- 9.2 The ? - ? strip MTL structure.- 9.3 The ? - ? -?-? electro-magnetic and magneto-electric structure.- 9.4 Two-port ? -air-? structures as magnetic analog-digital logometers.