The HEA (S) series power amplifier is specially designed for the use of the exciter (mainly matched with the HEV series exciter developed by the Vibration Research Institute of Nanjing University of Aeronautics and Astronautics), which can provide a stable and adjustable exciting current for the exciter. Under the action of exciting current, the exciter produces a exciting force corresponding to the exciting current of the tested component. The magnitude and phase of this force are only related to the exciting current and the characteristics of the exciter itself, but not to the tested component.

        This series of power amplifier is a linear power amplifier with stable performance, strong protection function, simple and clear operation, no impulse starting, no pollution to the environment, safe and reliable use. In addition, the series of power amplifiers have good adaptability. Although they are designed for the exciter, they are also suitable for the load with impedance matching basically. In particular, HEAS series power amplifiers have the characteristics of one machine and many others. They can also be used as signal sources and frequency meters, which are very popular with users.

Main performance and technical parameters of HEA series power amplifier