Piezoelectric ceramic devices used in the military
Conventional piezoelectric ceramics are polycrystalline materials multidomain grains from a few microns to tens of microns and consisting of high-frequency and ultra-low-voltage devices and micro-electromechanical brake system applications, such as particle size is close to the device size, so the traditional coarse grain piezoelectric ceramics can not meet the needs. The particle size is reduced to sub-micron level, the material can be improved workability can be made thinner and the substrate, can increase the frequency of the array, the transducer array to reduce losses, improve the mechanical strength of the device, each of the multilayered device is reduced the thickness of the layer, thereby reducing the driving voltage, which is to improve the laminate transformers brake are useful. Reducing the size of the above so many benefits, but it also brings the piezoelectric effect to reduce the impact.
Piezoelectric ceramic ultrasonic transducer produces toxic wastewater treatment and water. Ultrasonic motor with a small radial size, output torque, controllability, and other characteristics of; theft, altimeter, car crash, remote control switches and robotic ultrasonic distance measuring sensor; displacement servo brake, mirror optical strain, strain grating, ultra-precise guiding mechanism, Cutting error compensation brakes, hydraulic servo valves, etc. Special attention should be. In terms of high-temperature high-performance piezoelectric ceramic materials, with iron and steel, chemicals, energy, aerospace development, the need for high-precision drive, detection sensors, transducers and piezoelectric devices operate in high temperature harsh environments. Field of vibration control of an aircraft engine, contained liquid metal pipes NDT, NDT steel and chemical industries, thermal network, power and high-temperature flow detection and control of the nuclear power industry, welded pipe, high-precision sensor-driven devices such as, for pressure electrical materials for high temperature applications have made an urgent request.
Piezoelectric ceramic devices not only on industrial and consumer products in wide range of uses in the military also get a lot of applications. Such as the piezoelectric ceramic transducer made of water, as the nuclear submarine pair of bright "eyes" that can successfully carry out underwater navigation, communications, reconnaissance enemy, cleaning cloth enemy mines and other work; made of piezoelectric ceramics piezoelectric fuze, warhead detonation ignition, etc. can be accurately WMD; Again piezoelectric ceramic piezoelectric gyroscope making, aerospace indispensable "helmsman" and so on. Piezoelectric ceramic ultrasonic transducer produces toxic wastewater treatment and water. Ultrasonic motor with a small radial size, output torque, controllability, and other characteristics of; theft, altimeter, car crash, remote control switches and robotic ultrasonic distance measuring sensor; displacement servo brake, mirror optical strain, strain grating, ultra-precise guiding mechanism, Cutting error compensation brakes, hydraulic servo valves, etc. Special attention should be.
Today, as a raw material for a moving coil speaker rare, because the country's resources and comprehensive price control policies, as well as handheld consumer electronics products demands increasingly thin piezoelectric ceramic speaker needs will become increasingly common, but in view of the piezoelectric ceramic speaker the unique sound characteristics, some friends may not fully understand how it works, and cause cognitive bias, and errors in design. Piezoelectric ceramic devices not only on industrial and consumer products in wide range of uses in the military also get a lot of applications. Such as the piezoelectric ceramic transducer made of water, as the nuclear submarine pair of bright "eyes" that can successfully carry out underwater navigation, communications, reconnaissance enemy, cleaning cloth enemy mines and other work; made of piezoelectric ceramics piezoelectric fuze, warhead detonation ignition, etc. can be accurately WMD; Again piezoelectric ceramic piezoelectric gyroscope making, aerospace indispensable "helmsman" and so on.
