Is it possible to drive a piezoelectric stack with just DC.. ie. if you want to use a piezo to move something a set distance can you just apply a constant voltage to keep the piezo "activated" at the desired length, or do you always have to drive them sinusoidally. For example with the piezo microscope stages are they AC driven with some complicated synchronising stuff to only take images when they are at the right place, or fixed in a position with a DC voltage?
Dear Phil Denby,
I suggest you to see links and attached files in topics. -Modeling Piezoelectric Stack Actuators for Control of Mlcromanlpulatlonhttps://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.../19970023035.pd...
- Control of an experimental piezoelectric actuators system - Materials ...
www.mate.tue.nl/mate/pdfs/12175.pdf
- Piezo Motion Control, Piezo Actuator, Precision Positioning, and ...
www.pi-usa.us/tutorial/
Best regards
I suggest you can read this publication about control of piezoelectric actuator.https://www.researchgate.net/publication/304614348_A_novel_model_of_PZT_actuator_and_its_application_in_hysteresis_and_vibration_controls?_iepl[viewId]=iGeb1BQXTF9Gc2Cdl0kNCnEdNXKI0Vz9nIpq&_iepl[contexts][0]=prfhpi&_iepl[data][standardItemCount]=3&_iepl[data][userSelectedItemCount]=0&_iepl[data][topHighlightCount]=2&_iepl[data][standardItemIndex]=2&_iepl[data][standardItem2of3]=1&_iepl[targetEntityId]=PB:304614348&_iepl[interactionType]=publicationTitle
Dear Phil Denby,
Look the link, may be useful.
https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19970023035.pdf
Article A charge controller for linear operation of a piezoelectric ...
Regards, Shafagat
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