Resonator stabilization, data acquisition and computing on a laser gyro
Abstract
In order to make the resonator length of the laser gyro insensitive to thermal or mechanical perturbations, a control loop, consisting of piezodrive, optical sensors, readout electronics, and phase sensitive demodulation was developed. Assembly and circuit components are described. Test results indicate excellent perturbation suppression for frequencies below 1 Hz. The acquisition system for the data of the stabilized gyro consists of a multichannel analyzer, floppy disk unit, and controller. Data processing programs in FORTRAN, BASIC and Assembler are given. The system is shown to be particularly useful for large data series and day-to-day measurements.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- March 1983
- Bibcode:
- 1983STIN...8326054S
- Keywords:
-
- Data Systems;
- Gyroscopic Stability;
- Laser Gyroscopes;
- Optical Resonators;
- Computer Programming;
- Computer Programs;
- Servocontrol;
- Signal Processing;
- Instrumentation and Photography