Bistable actuators

MMT has developed a complete family of mono-stable, bi-stable or event vibrating actuators (linear or rotary type) providing a force (torque) which is not necessarily proportional to the current applied.

The interaction between the magnetic circuit and the permanent magnet gives stable "parking" positions without current, a the ends of the stroke. ON-OFF systems are for example taking advantage of such structures. The main features of these magnetic structures are:

• Linear or rotary actuators
• Mono- or bi-stable or vibrating structures
• Calibrated detent force (torque)
• Proportional mode against a spring
• Bi-directional actuation
• Very fast actuation on a limited stroke
• Stable position without current at ends of the stroke
• A simple, robust and compact actuator structure
• Operational on a large temperature range : -40°C to +150°C
• Compatible with basic electronics
• Additional functions available on request

More information available on demand

Click on the following pictures to enlarge