Piezoelectric transducer pressure
Piezoelectric transducer pressure
(OP)
Hi,
Does anyone know if there is an equation to calculate the pressure produced by a piezoelectric transducer (maybe in function of electrical power, density of media, etc).
Thanks,
pilafa
Does anyone know if there is an equation to calculate the pressure produced by a piezoelectric transducer (maybe in function of electrical power, density of media, etc).
Thanks,
pilafa






RE: Piezoelectric transducer pressure
Off the top of my head, I think that a piezo transducer produces mechanical strain in proportion to electrical charge, and conversely.
Mike Halloran
Pembroke Pines, FL, USA
RE: Piezoelectric transducer pressure
The latter is usually a design criteria, based solely on the electromechanical properties of the device:
http://www.pi-usa.us/piezo_motion_tutorial/
TTFN (ta ta for now)
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RE: Piezoelectric transducer pressure
What else do you need besides sensitivity mv/Pa or mv/PSI?
Walt
RE: Piezoelectric transducer pressure
Between the charge amp and the piezo, you need gold plated terminals and teflon coax, which you have to bake regularly to keep out atmospheric moisture.
I don't think charge amps are bidirectional, so you need a different box to take a voltage input and pump charge into/out of the piezo to make it move.
Mike Halloran
Pembroke Pines, FL, USA
RE: Piezoelectric transducer pressure
Google: piezoelectric actuator force
A lot of information there.
Walt