The VS75-SIC-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-40dB can be used for integrity testing of bitumen coated pressure vessels and for detecting partial discharge. 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] | 162 |
| Case Material | Stainless Steel (1.4571/ 1.4404) |
| Wear Plate | Ceramics |
| 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 |