The primary mirrors of modern telescope are equipped with an active optics support that not only supports the weight of the mirror but also provides accurate force corrections to maintain the mirror in the optimum shape.
A novel type of electro-pneumatic actuators, originally developed for the INO340 3.4-m telescope, is now offered as a general and cost-convenient solution for all modern active optics telescopes.
The main characteristics are:
- Force range 10 - 1000 N
- Force resolution 0.15 N @ 10 Hz
- Large stroke ±3 mm
- Low dissipation electronics can be integrated in the actuator body