What is a piezoelectric engine?
Piezoelectric motor is a device that creates movement when the electric field creates movement in certain crystals or human materials. Piezoelectrics were first demonstrated in the 80s of the 20th century, when it was found that quartz crystals had created electric currents when they were stressed by affecting or compression. This effect is the opposite of what is driven by a piezoelectric engine, where electricity is used to create a movement from a material sensitive material.
The need for these engines grew at the end of the 20th century with increasing demand for miniaturization. Standard electric motors have a practical minimum size limit under which they cannot work reliably. The piezoelectric engine can be made on a miniature scale, provides accurate movement in very small increments and uses very little energy during or at rest.
There are very few parts in the piezo engine. The high -frequency oscillator provides a frequency that excites piezoelectric material. TheIt will change the shape based on its crystal properties. The resulting movement causes the material to enter into contact with a glass or roller.
A shift or roller is covered with a soft rubber or polymer called a friction coat that allows the piezoelectric material to grasp and move. Every time the oscillator creates a frequency pulse, the material is excited and moves. This causes a slide or cylinder.
The piezoelectric motor uses this effect by quick turn of the oscillating frequency. Each pulse creates a small but well -defined movement of piezo material and fast frequency cycles create a continuing movement. Slides can replace rotors with movement that can act as a switch.
The biggest advantage of these engines was miniaturization. There are other advantages, including low energy requirements, and you need maintenance. Piezoelectric engine is also relatively affectedMagnetic and electrical interference because the crystalline structure requires to create specific frequencies to create movement.
natural crystals including quartz and tourmaline can provide piezoelectric properties. Ceramics based on titanium and other minerals are commonly used. Some polymers based on fluoropolymer technology may also show piezoelectric properties.
Standard electric motor can provide high low torque speed, twisted force that causes rotation. Piezo engines on the other side work at lower speeds, but have a high torque for their size. In addition, they can provide very accurate movements that are not possible for electric motors. The ability to miniaturize to nanoparticles or microscopic size allows them to use in a variety of medical, industrial and consumer applications.