Submersible transducer configured to impede fluid penetration

A submersible cable comprising:

• electrical conductors;
• a venting tube;
• a cable jacket;
• and
• an inner layer that is surrounded by the cable jacket, wherein the electrical conductors are positioned around the venting tube, wherein the inner layer surrounds the electrical conductors, wherein an empty space exists within the cable along an outside surface of the venting tube, wherein the inner layer comprises a non-hygroscopic polymer that is more resistant to absorbing an aqueous liquid than the cable jacket.

A submersible transducer comprising:

• a transducer housing configured to be submerged within a designated liquid;
• a sensor disposed within the transducer housing and operable to obtain data for determining a parameter of the designated liquid;
• and
• a submersible cable having electrical conductors disposed within the cable and operably coupled to the sensor, the submersible cable also including a cable jacket and an inner layer that is surrounded by the cable jacket, wherein the electrical conductors are bundled together and the inner layer is disposed only along an external region of the bundled electrical conductors, wherein the inner layer comprises a polymer that is more resistant to absorbing the designated liquid than the cable jacket, wherein a liquid-absorption percentage of the cable jacket is at least ten times (10×) a liquid-absorption percentage of the polymer of the inner layer;
• wherein the inner layer is a first sub-layer and the cable jacket is a second sub-layer, the first and second sub-layers forming a co-extruded layer in which the first and second sub-layers are distinct but inseparable portions of the co-extruded layer.