Practical applications of specific piezoelectric ceramics materials

   Practical applications of specific piezoelectric ceramics materials

Biological field

Biological piezoelectric ceramics are combined with lead free piezoelectric ceramics to form bio-piezoelectric ceramics. Nano-generators use zinc oxide to convert mechanical energy generated by human movement, muscle contraction, and body fluid flow into electrical energy, and supply devices to detect cells. The health status PVDF film is used in the ultrasound imaging measurements of human and animal organs.

Military aspect

Piezoelectric ceramic materials can be generated in the water, receiving sound waves is used in underwater detection, geophysical detection, ultrasonic testing, etc.; PZT piezo thin films are applied to night vision devices and infrared detectors due to their pyroelectric effects; The intelligent function actively controls the noise of aircraft and submarines; piezoelectric composite materials are used in the pressure sensors to detect the situation outside the fuselage and satellite remote sensing detection devices.

Photoelectric information field

PZT materials piezo ceramics have electro-optical properties, nonlinear optical effects, photorefractive effects and other optoelectronic properties. Applications in optoelectronics include acoustic filters, optical shutters, optical waveguide modulators, optical displays, and optical storage; The electrical pyroelectric effects can process, transmit, and store signals generated by the outside world. They are used in robots and other intelligent structures. Tactile sensors are made of PVDF piezoelectric materials which can sense temperature, pressure, and identify corners.

Renewable Energy

The piezoelectric effect is used to collect the vibration energy generated by waves, wind, manpower and automobiles to realize the regeneration of mechanical energy. Crisis electrical system may provide the average output power of the power 250-950W, other high energy output with a small volume of the piezoelectric structure is to achieve the multilayer piezoelectric resonator, the open circuit voltage of about 30V output through a parallel circuit of all types of small means; waves using wave power generation of the piezoelectric material stretching and relaxation, it becomes a low voltage current through the electronic components; speed of 16 km extrusion or stretch breeze windmill miniature piezoelectric material can produce electrical energy,which have 18% of the wind energy into electrical energy; high power piezoceramic deformed by the impact of the sole of the foot is generated currents, which can produce energy at 250mW standard weight and stride; shock vibration energy is generated in cars with high energy density, and power with efficient mechanical structure of the piezoelectric material for power generation becomes possible.which has laid a large number of piezoelectric crystals in the pavement asphalt, Piezoceramic cylinder tubes have successfully generated current and ignited the bulb through the piezoelectric transformation when the car passed.