An Open Aperture for Lasers or Mechanics
A ring actuator is similar to a 1-axis stack actuator, except that is has a center aperture for light or instruments to pass through. These are often used in microscopy, laser or other photonic applications.
Piezo-electric ring actuators consists of a large number of contacted ceramic rings. Based on this design they provide a 9 mm or 14 mm open aperture.
Ring actuators are available with housing, series RA, and without housing, series R. The R series of actuators are not pre-loaded. For dynamic applications those Actuator have to be pre-loaded. The RA series of actuators are internally pre loaded by a mechanical spring making them ideal for dynamic applications.
High power hpower ring actuators are available.
A closed loop version equipped with strain gauge sensors is available as well.
Ring actuators are capable of generating large forces and can be easily integrated in experimental set-ups and machines. Due to their high natural frequency ring actuators are perfectly suitable for many scanning applications.
RA actuators with housing are always delivered with a mirror holder.
hpower actuators are high power, high force.
- Motion up to 130 µm
- Open aperture diameter 9 mm to 14 mm
- Sub nm resolution
- Blocking force up to 20,000 N
- µsec response time
- Flexible epoxy insulation