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The GMRT Servo System Specifications

A summary of the GMRT Servo Specifications is given in Table 20.1.


Table 20.1: GMRT Servo system summary
Dish mount Altitude-Azimuth mount.
Drive Dual drive in counter torquing mode.
Dish movement Azimuth +270 to $-$270 deg.
  Elevation 15 deg to 110 deg.
Dish slewing speed Azimuth 30 deg/min.
  Elevation 20 deg/min.
Minimum Tracking speed Azimuth 5 arcmin/min.
  Elevation 5 arcmin/min.
Maximum Tracking speed Azimuth 150 arcmin/min.
  Elevation 15 arcmin/min.
Tracking & pointing accuracy 1 arcmin for wind speed $<$20 kmph.
Gear reduction ratio Azimuth 18963.
  Elevation 25162.
Antenna acceleration Full speed in $\ge$ 3 sec for both axes.
Design Wind speed 40 kmph Operational.
  80 kmph Parking.
  133 kmph survival.
System operating voltage 415 VAC, 3 Phase, 50 Hz.
Antenna parking Antenna parking using 96 V DC battery.


next up previous contents
Next: Control System Description Up: The GMRT Servo System Previous: Objectives of the GMRT   Contents
NCRA-TIFR