Piezoelectric actuator application

In recent years, with the semiconductor integrated circuit to the high density, micro-development and the high precision of various processing requirements, as the key device actuator also put forward higher requirements. In recent years, piezoelectric ceramic actuators developed in recent years have attracted great attention due to their characteristics of high precision, fast response, low driving power, large generating force, low heat generation and small and light weight. People satisfied with the results. The development of ceramic actuators has become a new branch between electronic ceramic and structural ceramics, which has broad prospects for development.

Given its simple design, minimal moving parts, no requirement for lubrication to operate and the high reliability characteristics, the piezoelectric actuator is used in a variety of industrial, automotive, medical, aviation, aerospace and consumer electronics applications. Piezo actuators are found in precision knitting machinery and braille machines. The silent drive characteristics make piezo actuators an excellent auto focusing mechanism in microphone-equipped video cameras and mobile phones. Finally, since piezo actuators require no lubrication to operate, they are used in cryogenicand vacuum environments.

Using a stack actuator, extremely fine, virtually infinite resolution is possible with very high voltages corresponding to minute movements of expansion. A piezoelectric actuator can operate billions of times without wear or deterioration. Its response speed is exceptional and it is limited only by the inertia of the object being moved and the output capability of the electronic driver. When operating in an energized state, a piezo actuator consumes virtually no power and generates very little heat.