Active Surface Compensation for Large Radio Telescope Antennas

Table 7

Design parameter specifications of SRT actuators.

Weight	8.5 kg
Specifications	280 mm × 185 mm × 288 mm
Stroke	30 mm
Peak positioning accuracy	±0.015 mm
Axial load	250 kg at work (maximum is 1000 kg)
Radial load	100 kg at work (maximum is 700 kg)
Rate	360 μm/s
Power supply	115 V AC
Communication protocol	RS485 + LAN gateway
Operating temperature range	−10°C/60°C
Min/max power consumption	16/23 VA
Power consumption	4 VA
Service life	20 years