International Journal of Antennas and Propagation / 2018 / Article / Tab 8

Review Article

Active Surface Compensation for Large Radio Telescope Antennas

Table 8

Design parameters of Tianma actuators.

Weight<13 kg
Height<330 mm
Stroke30 mm
Repositioning precision0.015 mm
Axial load300 kg (maximum is 1000 kg)
Radial load150 kg (maximum is 700 kg)
Maximum speed>0.36 mm/s
Operating temperature range−10°C/60°C
Service life20 years