Title :
A microprocessor controlled oscillation generator
Author :
Andresen, E. Ch ; Topfer, Cl ; Xie, J.
Author_Institution :
Inst. fuer Elektrische Energiewandlung, Tech. Hochschule Darmstadt, West Germany
Abstract :
The development of an oscillation generator for a geological research project is presented. The purpose is exploring the structure of the lithosphere by shearing waves. Some technical demands are similar to the requirements made on industrial servo drives: true running without cogging torques, run-up without rotor position sensor, and torque detecting from the cable terminals. Supplying the permanent magnet synchronous machine and measuring the data through a thin and long cable are also discussed. Results from laboratory tests on a 400 Hz aircraft generator controlled by an M68000 microprocessor and by digital simulation are reported.<>
Keywords :
digital control; electric drives; geophysical equipment; machine control; microcomputer applications; oscillations; permanent magnet motors; seismology; servomotors; 400 Hz; M68000; S-wave; digital control; digital simulation; geological research; lithosphere; machine control; microprocessor; oscillation generator; permanent magnetic motors; prospecting equipment; rotor; seismic vibrator; seismology; servo drives; shearing waves; synchronous motors; torque; Forging; Geologic measurements; Geology; Magnetic sensors; Microprocessors; Permanent magnet machines; Rotors; Servomechanisms; Shearing; Torque;
Conference_Titel :
Industry Applications Society Annual Meeting, 1989., Conference Record of the 1989 IEEE
Conference_Location :
San Diego, CA, USA
DOI :
10.1109/IAS.1989.96726
