Micromechatronics, Inc. (MMech)

www.mmech.com - Ph: 814-861-5688

MTDD Series - Magnified Piezoelectric Actuators

MTDD_Series_med

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.

Standard Actuators

Product Mod
PZ
L
PZ W PZ H

Disp. 150V

Force Stiff. Res Freq Cap
Units mm mm mm ┬Ám N N/um Hz uF
MTDD03S50F3 15 3 5 50 3 0.06 1500 0.030
MTDD06S100F10
20 6 7 100 10 0.10 700 0.2
MTDD06S100F11 20 6 7 100 11 0.11 900 0.36
MTDD06S330F7 22 6 7.8 330 7 0.02 400 0.86
MTDD08S180F32 28 8 8 180 32 0.18 900 0.9
MTDD08S300F16 26 8 7 300 16 0.053 460 0.7
MTDD08S350F18 26 8 8 350 18 0.051 500 0.8
MTDD12S90F5 22 12 5.12 90 5 0.06 700 0.36
MTDD16S750F90 52 16 14 750 90 0.12 230 8.0
MTDD16S830F80 52 16 14 830 80 0.10 230 11.8
MTDD16S860F64 52 16 14 860 64 0.07 195 11.7

Quality / Testing

Each actuator is individually tested for displacement range, blocking force, and resonance frequency.

Illustration of operation

mdd_2A

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.

MTDD_FreeFree       MTDD_FixedFree

Tension Force

The maximum tensile force generated by the actuator is approximately 10% of the compressive or blocking force.

Displacement Range

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

The required current is I=C dV/dt where I is the current, C is the effective capacitance, and dV/dt is the voltage rate of change. For a sine-wave, the required peak current is equal to:

MTDD_Form_1B

where Vp-p is the peak-to-peak voltage. For a triangle wave, the required peak current is equal to:

 

Ipiezo = 2Cf Vp-p

Customization

Custom dimensions and travel ranges can be produced. Please contact us for details.

More Information

200 Innovation Blvd. Suite 155
State College, PA 16803, USA
Ph: (814)-861-5688
Fax: (814)-861-1418
contact@mmech.com
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