QAWRUMS GI150 Piezoelectric AE Sensor, >75dB, 150 kHz, -20℃~50℃, BNC

No, the GI150 features a built-in 40dB preamplifier operating at 28V. This integrated circuit amplifies the raw piezoelectric signal, providing a conditioned output directly via the BNC connector, which simplifies wiring and is often sufficient for direct connection to data acquisition systems or AE analyzers.

The GI150 is designed to operate reliably within an ambient temperature range of -20°C to +50°C. This range makes it suitable for most industrial monitoring and laboratory environments where Acoustic Emission testing is performed.

The sensor is equipped with a standard BNC connector. For optimal signal integrity with minimal noise and attenuation, it is recommended to use a high-quality, shielded coaxial cable (e.g., RG-58) with BNC connectors matched to your data acquisition system's input.

The GI150, with its ceramic sensing face, is designed for direct coupling onto flat, smooth metallic surfaces commonly found in industrial testing. For effective acoustic coupling and signal transmission, a thin layer of acoustic couplant gel or grease must be applied between the sensor face and the test surface.

Yes, the GI150's sensitivity in the 60–400 kHz frequency band makes it well-suited for detecting the high-frequency acoustic emissions generated by partial discharge (PD) events within transformers, switchgear, and other high-voltage electrical insulation systems, aiding in predictive maintenance.