What Are The Applications Of Piezoelectric Ceramics In The Field Of Ultrasound
Piezoelectric ceramics are information functional ceramic materials that can convert mechanical energy and electrical energy into each other - piezoelectric effect. In addition to piezoelectricity, piezoelectric ceramics also have dielectric properties, elasticity, etc., and have been widely used in medical imaging, Acoustic sensors, acoustic transducers, ultrasonic motors, etc. It is made by using its material under the action of mechanical stress to cause the relative displacement of the internal positive and negative charge centers to cause polarization, resulting in the appearance of bound charges with opposite signs on the surface of the material, that is, the piezoelectric effect. It has sensitive characteristics. Piezoelectric ceramics are mainly used in the manufacture of ultrasonic transducers, underwater acoustic transducers, electroacoustic transducers, ceramic filters, ceramic transformers, ceramic discriminators, high voltage generators, infrared detectors, surface acoustic wave devices, electro-optic devices, ignition and detonation, and piezoelectric gyroscopes, etc. In addition to being used in high-tech fields, it serves people more in daily life and strives to create a better life for people.
Because focused ultrasound has good tissue penetration, positioning and energy storage, focused ultrasound piezoelectric ceramics are widely used in the medical industry. People use biological effects such as thermal effect, mechanical effect and cavitation effect of ultrasound to affect the diseased tissue, and finally degenerate the diseased tissue and promote tissue reconstruction and microcirculation, so as to achieve the purpose of treatment. Ultrasound therapy is a non-invasive treatment technique because the energy in the area outside the focal point is very low and does not cause any damage to normal human tissue, and does not require surgical incision or destruction of surface tissue. In addition, focused ultrasound is also widely used in the medical beauty industry such as fat burning and facelifting, which is a good assistant for women to become beautiful.
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