The Elliptecmotor is suited for applications that require actuation at moderate forces, typically up to 5N. Lower speed applications can range up to 100N. Not only is the Elliptecmotor the right choice for simple applications such as for the actuation of protective lids or locks, the Elliptecmotor also satisfies the demand for motions of the highest precision with fast reaction speeds in adverse environmental conditions, and also for other specialized requirements.
Through the use of a piezoelectric element in the Elliptecmotor and due to patented and patent-pending designs, entirely new applications are now possible.
Elliptecmotors distinguish themselves from traditional piezoelectric motors. They are easily adaptable and controllable, which keeps system costs low. The Elliptecmotors provide the technological advantage to elevate your products above those of the competition. Many attributes of the Elliptecmotor, such as speed, step size, and power, are software-controlled. Many applications can utilize the cost-effective standard model X15G, but customer specific motors can be manufactured on demand where necessary.
Features:
Highly responsive: Vo within 100 µs
High resolution: < 10 µm
Ultralight: 1.2 g
Operation:
The operation of the Elliptecmotor is based on the inverse piezoelectric effect. A microcontroller and two tiny transistors are all that is needed to supply the piezoelectric ceramics with a sufficient electric voltage to cause the ceramics to expand by less than one micrometer and to let it contract again when the voltage is turned off. During motor operation, this interplay occurs about 100,000 times per second.
The repeated expansions and contractions of the piezoelectric element excite a resonator to vibrate. The research team of Elliptec AG has optimized the shape of the patented resonator so that the vibrations of the piezoelectric element are magnified and transformed into elliptical motions at the motor tip. A spring maintains a steady pressure between the resonator tip (aka the stator) and a driven element (aka the rotor), which in turn is moved by up to a few micrometers with every oscillation of the piezoelectric element. As this process occurs at supersonic frequencies, the motion of the driven element is continuous and smooth.
Technical Data: (Summary)
Force:
0.2 - 0.4 N Larger forces by way of simple lever mechanisms or by using several motors in parallel
Blocking Force:
> 1 N
Signal Amplitude: (at Motor)
5 - 8 V ,
5 - 10 V
Supply Voltage: (at control electronics)
2.4 - 30 V Requires appropriate power stage.
Current Draw: (at control electronics)
1 - 450 mA @ 5 V supply voltage Depends on motor speed
Weight
1.2 g
Length without Spring:
20 mm
Width without Spring:
3 mm 8 mm in the area of the piezoelectric element.
Height without Spring:
3 mm 4 mm in the area of the piezoelectric element.