The VS30-SIC-V2-0dB is a piezoelectric AE sensor with integrated preamplifier. The low frequency response makes it especially suited for monitoring large objects or objects made of highly attenuating material. The preamplifier has no gain and just converts the high impedance piezoelectric transducer output to a low impedance signal suitable for long cable transmission. It is therefore suited for detecting high energy AE sources such as tendon or wire rupture in tensioned concrete. The watertight design allows outdoor usage. The integrated preamplifier supports pulse through for automatic sensor testing.

Technical Specification

Frequency Range (fPeak) [kHz] 25 to 80
Power Supply [VDC] 28 ± 2
Integrated Preamplifier Yes
Preamplier Gain [dB] 0
Operating Temperature [°C] -40 to +85
Vibration @ Sinus Sweep 2 Oct/Min, 5 to 50 Hz, 20 g
Size (D x H) [mm] 28.6 x 51.8
Weight [g] 172
Case Material Stainless Steel (1.4571/ 1.4404)
Wear Plate Ceramics
Connector SMA
Ingress Protection Rating (IP) IP68, max. 0.2 bar with connected cable
Shield Cross-Talk [dB] < -80
Noise (max. 1/s) [dBAE Peak] 54 @ 25 – 45 kHz
Noise (max. 1/s) [µVRMS] 163 @ 25 – 45 kHz
Pulse Through Yes