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Our new 12-channel hydrophone string is a skinny thing!
This new, slender hydrophone string is just the ticket for collecting seismic data in a narrow borehole. With a maximum outside dimension of only 1.25", the cable will easily fit into any 2" ID borehole. The cable is outfitted with (12) HTI-96 hydrophones (unamplified) at 3-foot intervals and has a 250 foot lead terminated with a Geometrics-type Bendix 61 connector at one end and a small stainless stress anchor at the other.
SPECIFICATIONS
Element Sensitivity: -201dB re: 1V/uPa
Capacitance: 10nF (nominal)
Frequency Response: DC to 30KHz
Operating Depth: 3048 meters
Sensitivity/Depth loss at 3048 meters: 2dB
Size: 5/8” diameter X 1.625 long
Encapsulant: Polyurethane
Testing: Sensitivity (measured to known Navy Standard using comparison method), pressure testing, leak testing to water, capacitance, dissipation, polarity, and resonance.