A New Ultra-small Preloaded Piezo Actuator
A New Ultra-small Preloaded Piezo Actuator Preloaded piezo actuator is a device which uses piezo effect to generate displacement. It is composed of piezo ceramic material, metal electrode and packaging material. Piezo ceramic materials will deform under the action of electric field, resulting in displacement. Metal electrodes are used to apply electric fields to control the deformation of piezo ceramics. The packaging material is used to protect piezo ceramics and metal electrodes, while also improving the mechanical strength and protective performance of the device. The preloaded piezo actuator has the advantages of fast response speed, high precision, low power consumption and long life, and is widely used in precision instruments, automatic control, medical equipment, aerospace and other fields. CoreMorrow has hundreds of preloaded piezo actuators that use the inverse piezo effect for micro and nano motion control, and their outer diameter sizes range from 9mm to 45mm, and their blocking force can also be up to 50kN or more. These piezo actuators are available in threaded, flat or ball connections.
A preloaded piezo actuator introduced in this paper is different from conventional piezo actuators, it has no mechanical interface, and very small dimension, we name it VS6.