Views: 1 Author: Site Editor Publish Time: 2020-02-19 Origin: Site
Piezoelectric ceramic is a kind of functional PZT piezoceramics material that can transform mechanical energy and electrical energy. In addition to piezoelectric properties, piezoelectric ceramic transducer also have dielectric properties and elasticity, which are widely used in medical imaging, acoustic sensors, acoustic transducers, ultrasonic motors and other fields. Piezoelectric ceramic is made of its material under the action of mechanical stress, which causes the relative displacement and polarization of the internal positive and negative charge center, and causes the opposite sign of bound charge on the surface of both ends of the material, i.e. piezoelectric effect. Piezoelectric ceramic transducers are mainly used to make ultrasonic transducer, underwater acoustic transducer, electroacoustic transducer, ceramic filter, piezoelectric ceramic chip transformer, ceramic frequency discriminator High voltage generator, infrared detector, surface acoustic wave device, electro-optic device, ignition device, piezoelectric gyroscope, etc. in addition to being used in high-tech fields, it also provides more services for people in daily life and strives to create a better life for people.
The maximum displacement of the packed PST 1000 / 35 / 200 vs45 is 260 μ m, the rigidity of the Pzt piezoceramic ring actuator c is 150 n / μ m, and the rigidity of the external mechanism is 70 n / μ M. the displacement generated by the above calculation formula is 177 μ M. at this time, the effective thrust of the external mechanism of the piezoelectric ceramic is 12450 n. when the rigidity of the external mechanism is 500 N / μ m, the displacement generated is 60 μ m, and the effective thrust is 30000 N.
When the stiffness of the external load is the same as PST 150 / 5x5 / 20, the piezoelectric ceramic can output a maximum displacement of 10 μ m and a maximum output of 800 n.
Under the same external mechanical structure, because PST 150 / 7x7 / 20 has greater rigidity,it can output larger displacement and output under large driving voltage.
