Advances in Piezo Actuators for High Frequency, High Duty Cycle Industrial Applications
both applications (Fig. 7, Table 1). While the E-618 amplifier can provide very high peak currents for high repetition rate pulse applications, the E-617KDYN is designed for high frequency continuous operation [...] conventional linear amplifier (see Table 1). Table 1: Comparison of the amplifier specifications E-618 / E-617KDYN (see Fig. 7). In addition, both amplifiers have an input for a PT1000 temperature sensor. [...] rate) and water (15°C, 40l/h) were tested. The piezo actuators were driven by the above mentioned E-617 and E-618 amplifiers (see illustration in section 4), either with a sinusoidal signal or with a rectangular