Hydrophone cables use hydrophones (waterproof pressure sensors, natural freq. 10Hz) instead of traditional geophones, thus allowing fast seismic surveys in lakes, rivers, wells (downhole & crosshole), etc. Since transverse waves are not transmitted in liquids, it will obviously be possible to detect only P waves (compression waves): for surveys in P&S wave wells, we recommend the 3D borehole geophone Mod. GFA. Hydrophone cables are available with fully customized length, number of hydrophones and spacing; because of their large size, hydrophone cables are supplied without cable reel.

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