Power Amplifiers designed for APS ELECTRO-SEIS® Long Stroke Shakers
The APS 125 and APS 145 DUAL-MODE Power Amplifiers are designed specifically to provide drive power for electrodynamic shakers. The amplifiers have features which make them uniquely suited for studying the dynamic characteristics of structures.
They may be operated in either a voltage or current amplifier mode, selectable from the front panel. A remote control 'Mute' input allows to remove the drive signal while the amplifier mode is retained. This feature can be used e.g. for observation of resonance decay in structures.
There are also some Featured Protection Functions. Please follow the link for further information.
PA 500 DM
PA 500 DM
For all vibration exciters that require a 500 VA power amplifier (load impedance 4 Ω). The PA 500 DM offers a max. frequency range DC ... 200 kHz, small harmonic distortion, excellent stability even with temperature or supply line variations and helpful protection functions.
800 VA power amplifier for low-frequency vibration exciters