Piezoelectric
Piezoelectric ultrasonic engine
Piezoelectric ultrasonic motors offer great advantages over conventional electromagnetic motors (such as torque to size and weight ratio, reduced noise, small and compact, etc.).
Linear engine
The linear engine is another type of piezoelectric engine. In this example, by applying an adequate harmonic voltage to the two piezoelectric stacks of the actuation system, we can obtain an elliptical movement of its upper face.
Actuators and sensors
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Piezo-resistive pressure sensor (top left), MEMS based gyrometer (top right), In the case of actuators, the analysis focuses mainly on the mechanical response due to an electrical loading and in the case of sensors, on the inverse phenomenon. The harmonic response of accelerometers and gyrometers enters in this class of problems. |
Sensors and actuators functionality is often based on the combination of physical phenomena
- Capacitive - Electrostatics
- Piezoresistivity
- Piezoelectriity
- Thermal
- Magnetics
As components are scaling down (e.g. MEMS), Oofelie truly becomes the simulator of choice for your transducer design: Governing time-constants inside the components reach similar orders of magnitude. This neccessitates Strongly Coupled Simulation techniques for best accuracy and convergence of your results.