Control servo system-GMRT
- 1. CONTROL SERVO SYSTEM-GMRT BY....... 133248, SHRIJEEB GHOSH, THIRD YEAR, ELECTRONICS AND TELECOMMUNICATIONS, INSTITUTE OF TECHNOLOGY(ULHASNAGAR)
- 2. CONTROL SERVO SYSTEM-GMRT Index: i. ii. iii. iv. v. vi. vii. viii. Types of antennas Introduction Context Nested control loops Alt-Azimuth Positioning Control System Control Servo System Block Diagrams Observations Advantages and advancements
- 4. INTRODUCTION: Giant Metrewave Radio telescope World’s largest radio telescope at metrewaves Designed and fabricated in India
- 5. INTRODUCTION: Over One of the 30 nos. of 45m diameter Dish Antenna of the GMRT Microwaves Antennas for Radio Astronomy Applications
- 6. CONTEXT: Important to be controlled by a precession control system to point to the radio source The GMRT servo system has designed with three Nested control loops in weight Antenna altazimuth Positioning Control System Heavy
- 7. General process of nested control loops
- 8. nested control loops in antennas
- 9. alt-azimuth Positioning Control System Moves the dish in a plane parallel to earth surface Also moves the dish in a plane perpendicular to earth surface 2 motor drive per axis, for backlash
- 11. Schematic of AltAzimuth control system
- 12. simplified diagram of alt-azimuth control system
- 13. PRINCIPLE OF POSITION CONTROL SYSTEM
- 14. GMRT SERVO CONTROL BLOCK DIAGRAM
- 15. CONTROL SERVO SYSTEMGMRT observation: Conclusion: Observe and study the control servo system used for turnable antennas Study a special type of motor(A-Z motor) Highlight the Limitations of altazimuth servo system
- 16. CONTROL SERVO SYSTEMGMRT advantages: Economical(once installed, the position is adjusted using such system) Provides high accuracy to space researchers advancements: Limit power consumption of motors