Accession Number : AD0427032


Title :   DYNAMIC STABILITY OF THE RESONANT CIRCUIT ELECTRICALLY SUPPORTED GYRO,


Corporate Author : ILLINOIS UNIV URBANA COORDINATED SCIENCE LAB


Personal Author(s) : Allen,Don R


Report Date : Aug 1963


Pagination or Media Count : 43


Abstract : The electrically supported gyro is a free, twoaxis gyro which employs a spherical metal rotor, shielded from stray magnetic fields and supported without physical contact in ultra-high vacuum by servo-controlled high-voltage electric fields. The rotor is initially accelerated by induction motor techniques but spins freely with virtually no friction during gyro operation. An analysis is made of the static and dynamic properties of a unique rotor support servo called the resonantsupport servo. This simple servo consists basically of series resonant circuits formed by connecting a voltage generator and an inductor in series with the capacitance of each support electrode and the rotor. By driving each resonant circuit with a sufficiently high voltage at a frequency higher than its resonance, the rotor can be supported arbitrarily close to the center of the spherical cavity formed by the electrodes. Because of the resonant-support servo is dynamically unstable, three general methods of stabilizing the servo are described and analyzed. (Author)


Descriptors :   *GYROSCOPES , *GYRO STABILIZERS , SERVOMECHANISMS , STABILITY , STABILIZATION SYSTEMS , MAGNETIC FIELDS , VACUUM , RESONANCE , CIRCUITS , SPHERES , FRICTION


Distribution Statement : APPROVED FOR PUBLIC RELEASE