International Journal of Antennas and Propagation / 2018 / Article / Tab 7

Review Article

Active Surface Compensation for Large Radio Telescope Antennas

Table 7

Design parameter specifications of SRT actuators.

Weight8.5 kg
Specifications280 mm × 185 mm × 288 mm
Stroke30 mm
Peak positioning accuracy±0.015 mm
Axial load250 kg at work (maximum is 1000 kg)
Radial load100 kg at work (maximum is 700 kg)
Rate360 μm/s
Power supply115 V AC
Communication protocolRS485 + LAN gateway
Operating temperature range−10°C/60°C
Min/max power consumption16/23 VA
Power consumption4 VA
Service life20 years