What is the piezoelectric effect?
Piezoelectric effect is a unique feature of certain crystals where they will generate electric fields or current if they are subjected to physical stress. The same effect can also be observed, where the stored electric field on the crystal voltage on its structure. Piezoelectric effect is essential for converters, which are electrical components used in a wide range of sensor and peripheral applications. Despite the versatility of the phenomenon for applications in electromechanical devices, it was discovered in 1880, but did not detect widespread use only about half a century later. Types of crystalline structures that show a piezoelectric effect include quartz, topaz and rochelle salt, a type of potassium salt with a chemical formula of KNAC 4 4 o 4H> 2
Known about 1903. Physics for Research with his wife Marie is attributed with a wonder in 1880 with his brother Jacques Curie in 1880 stored the piezoelectric effectEC. At that time, however, the brothers did not discover an inverse piezoelectric effect where electricity deforms crystals. Gabriel Lippmann, Franco-Luxembourgish physicist, is credited the discovery of an inverse effect in the following year, led to its invention of the Lippmann electrometer in 1883.
Piezoelectric effects have a unique feature that often develops thousands of volts with electricity with very low current levels. As a result, even small piezoelectric crystals are useful objects for generating sparks in ignition devices such as gas furnaces. Other common uses for piezoelectric crystals are to check precise movements in microscopes, printers and electronic hours.
Process where the piezoelectric effect occurs is based on the basic structure of the crystal grid. Crystals haveGenerally, the charge balance, if negative and positive charges are accurately disturbed along the solid planes of the crystal grid. When the charge is disturbed by the application of the physical voltage to the crystal, the energy is transmitted by electric charge carriers and creates a current in the crystal. With a rotary piezoelectric effect, it will apply an external electric field to the crystal to not use the condition of the neutral charge, resulting in mechanical voltage and slight reading of the grid structure.
Since 2011, the piezoelectric effect has been widely monopolized and used in everything from quartz clock to water heater lighter, portable grills and even some pocket lighters. In computer printers, tiny crystals are used on inkjet jets to block the ink flow. When the current is applied to them, deformation, and ink for flow on paper in carefully controlled bundles to form text and images.
Piezoelectric effect can also be used to generate sound for miniatureWatches' speakers and audio converters for measuring distances between objects, such as TOD search engines in the construction store. Ultrasonic converters are also based on piezoelectric crystals and on many microphones. Since 2011, they have used crystals made of Barria Titanate, lead or lead titanate, which produce lower voltages than Rochelle salt, a standard crystal in early forms of these technologies.
One of the most advanced forms of technology to earn a piezoelectric effect Since 2011, the scanning tunnel microscope (STM), which is used to visually explore the structure of atoms and small molecules. STM is a basic tool in the field of nanotechnology. Piezoelectric crystals used in STM are capable of generating measurable movement on a scales of several nanometers or a billion meter.