Piezo-actuator stack control method - is formed on N single piezo discs, only one of which is charged with electrical energy at one time

摘要

The actuator (1) is formed from N single piezo discs (2). The actuator is supplied with electrical energy in such a way that, at any point in time, only one piezo disc (2) is charged with the electrical energy, and the energy is converted into a mechanical form. After the conversion of the electrical energy of the charge on the disc, as soon as its mechanical stroke is retained the piezo actuator disc can be separated and another disc e.g. the next in the pile is charged with energy. ADVANTAGE - Achieves an adequate temporal change of pile length for most requirements.