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Hydrophones
| Name | Design | Nominal Sensitive Element Diameter (mm) | Integral Pre-amplifier? |
|---|---|---|---|
| EP | PVDF ellipsoid (capsule) | 0.2 | yes |
| NP | PVDF needle | 0.6 | no |
| NC | Piezoelectric ceramic needle | 0.4 | no |
| M1 | Single-layer PVDF membrane with rubber backing | 0.5 | yes |
| M2 | Bilaminar PVDF membrane | 0.4 | no |
| M3 | Bilaminar PVDF membrane | 0.5 | yes |
| M4 | Single layer PVDF membrane | 1.0 | yes |
| FO | Fiber Optic | 0.01 | yes |
