Description
The Graphtec GL7-CHA is a high-precision charge amplifier module designed for use with piezoelectric sensors, making it ideal for measuring acceleration, pressure, and force. The module features 4 isolated input channels with simultaneous sampling, supporting both charge output and IEPE (voltage output) sensors. It offers flexible input ranges, high-speed sampling from 100 kS/s to 1 sample/hour, and built-in RAM capable of storing 2 million samples per channel. The module also provides excitation power for sensors, high input impedance, and robust isolation, ensuring reliable and accurate signal acquisition.
The GL7-CHA supports IEEE 1451.4 TEDS, allowing sensor information to be read and set directly from the module, simplifying setup and calibration. It includes a variety of high-precision filters—high-pass, low-pass, and anti-aliasing—enabling precise measurements even in challenging environments. With calculation functions for integration and double integration, the module can convert measured signals into velocity and displacement, making it a versatile tool for dynamic testing with a wide range of piezoelectric sensors.