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Piezoelectric transducer pressure
- Thread starter pilafa
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MikeHalloran
Mechanical
The transducer supplier should have some help available. ... probably in a fairly dense technical document that an ordinary salesperson could not even read.
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
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
Pressure as in sound pressure, or physical pressure?
The latter is usually a design criteria, based solely on the electromechanical properties of the device:
TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! faq731-376 forum1529 Entire Forum list
The latter is usually a design criteria, based solely on the electromechanical properties of the device:
TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! faq731-376 forum1529 Entire Forum list
MikeHalloran
Mechanical
To get units of voltage per unit pressure, you need a charge amplifier, which is strictly speaking a charge to voltage transducer.
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
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
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