![]() Examples of artificial piezoelectric materials include lead zirconate titanate (PZT), barium titanate, cane sugar, and lithium niobate.Ĭompared to biological materials, manufactured materials are more effective and have better material use. The piezoelectric materials come in two main categories:Įxamples of naturally occurring piezoelectric materials are Berlinite, quartz, Rochelle salt, tourmaline, etc. And this is the only way the piezoelectric effect can occur. When you apply pressure (mechanical stress) and deform applying high voltage, they produce electricity.Īs a rule, these materials are non-conductive. Various materials, both natural and artificial, exhibit piezoelectric effects. Likewise, the same principle applies to devices such as sonar transducers and medical ultrasounds. Such piezoelectric devices are very functional as they are thin and can fit into various small appliances. ![]() Utilizing this method helps make devices that produce acoustic sound, e.g., piezoelectric speakers and piezoelectric microphones. Thus, this creates an inverse piezoelectric effect – converting electrical energy into mechanical energy. You create an inverse piezoelectric when you apply a direct electrical voltage to make a piezoelectric material expand or shrink. ![]() The electric current produced creates a current – known as the piezoelectric effect. The metal plates act as the transmitter of this electric current. In the illustration, when you place a non-conducive piezoelectric material between two metal plates and squeeze or compress them together, they produce an electric current. ![]() Illustration of piezoelectric and converse piezoelectric.Īs stated before, squeezing a piezoelectric crystal produces piezoelectricity. ![]()
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