Another sonar history lesson ...
Why are piezos sometimes labeled "crystals" or "crystal elements" ...??
Rickie
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Another sonar history lesson ...
Why are piezos sometimes labeled "crystals" or "crystal elements" ...??
Rickie
Has to do with the arrangement of the atoms in the material forming elements that repeat in a three dimensional lattice to form a crystalline structure. Or something like that. Or, could be as simple a early piezos were quartz crystals.
Remember something like this in physics when studying semiconductors and silicon structures (1,0,0),(0,0,1), (0,1,0) Miller Indices, etc.. Now my head hurts thinking about it..
-danny
That is an easy one. The left side of the page is in English so it reads crystals and the right side is in Spanish so it reads piezos.:biggrin
:dono0:dono
HMMMM .... I would have thought it was the other way around .....certain crystals exhibit piezoelectric characteristics ..... so the term piezo is actually a shortcut name for a piezoelectric crystal...:dono:banghead
We must have mistakenly been signed up for the advanced class ...:biggrin
Quote ... in part ...
The word "piezo" is derived from the Greek word for pressure. In 1880 Jacques and Pierre Curie discovered that pressure generates electrical charges in a number of crystals such as quartz and tourmaline; they called this phenomenon the "piezoelectric effect". Later they noticed that electrical fields can deform piezoelectric materials. This effect is called the "inverse piezoelectric effect".
Fundamentals of Piezo Technology
Quartz and Tourmaline = crystal Earth elements ...
From that same link ... Quote ...in part ...:
The industrial breakthrough came with Piezoelectric Ceramics, when scientists discovered that barium titanate adopts piezoelectric characteristics on a useful scale when an electric field is applied.
Rickie
I am with Kozmo on this one! Good to learn something for the day!