The VS75-SIC-V2-40dB is a piezoelectric AE sensor with integrated preamplifier. Its frequency response is characterized by a peak at 75 kHz where it exhibits a resonance. The low frequency response makes it suited for monitoring large objects or objects made of highly attenuating material. The VS75-SIC-V2-40dB can be used for integrity testing of bitumen coated pressure vessels and for detecting partial discharge. The VS75-SIC-V2-40dB has a full metal housing that makes it especially suited for adhesively mounting it to a test object.
The integrated preamplifier has 40 dB gain and supports pulse through for automatic sensor testing.
Technical Specification
| Frequency Range (fPeak) [kHz] | 30 to 120 (75) |
| Power Supply [VDC] | 28 ± 2 |
| Integrated Preamplifier | Yes |
| Preamplier Gain | 40 |
| Operating Temperature [°C] | -5 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] | 174 |
| Case Material | Stainless Steel (1.4571/ 1.4404) |
| Wear Plate | Stainless Steel (1.4571/ 1.4404) |
| Connector | BNC |
| Ingress Protection Rating | IP40 |
| Shield Cross-Talk [dB] | < -80 |
| Noise (max. 1/s) [dBAE Peak] | 29.5 @ 25 – 300 kHz |
| Noise (max. 1/s) [µVRMS] | 7.3 @ 25 – 300 kHz |
| Pulse Through | Yes |