MTDD Series - Magnified Piezoelectric Actuators
The MTDD Series of magnified actuators utilize an advanced frame and high performance piezoelectric stack actuators to provide an large range of motion, fast response, and sub-nanometer resolution. The advanced design of the flex frame allows the MTDD actuator to outperform similar devices largely due to its higher in-plane and out-of-plane stiffness, greater mechanical efficiency, and higher resonance frequency. The dual-hinge flexure design of the frame results in an extremely compact actuator.
Applications include: Nanopositioning, Biomedical, Microscopy, Precision machining, Vibration control, High-speed valves, and Optics.
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Quality / Testing
Each actuator is individually tested for displacement range, blocking force, and resonance frequency.
Illustration of operation
Mounting of actuators
The MTDD actuators can be mounted in a free-free or fixed-free configuration using the threaded mounting holes. When a voltage is applied, a proportional expansion is developed in the vertical direction, as illustrated below.
The maximum tensile force generated by the actuator is approximately 10% of the compressive or blocking force.
The displacement range is specified for an applied voltage of -20V to +150V. The displacement listed in the charts is the nominal displacement @ 150V. If the input voltage is unipolar (0V to +150V) the specified range is reduced by a factor of 0.9.
Electrical Current Requirements
Ipiezo = 2Cf Vp-p
Custom dimensions and travel ranges can be produced. Please contact us for details.