Solid marine seismic cable

A marine seismic cable comprising:

• a. a cable interior including a plurality of electrical conductors;
• b. a carrier body comprising:
• i. an upper half cylinder and a lower half cylinder coupled together around the cable interior;
• ii. a pair of elongated sensor element channels formed in each of the upper half cylinder and the lower half cylinder;
• iii. a plurality of piezoelectric sensor elements mounted in each sensor element channel, the piezoelectric sensor elements in each sensor element channel coupled together to form a group;
• iv. an elongated circuit channel between the sensor element channels;
• and
• v. a flexible circuit in the circuit channel and extending into each of the sensor element channels.

A hydrophone support in a marine seismic cable, the cable including a plurality of signal carrying conductors, the support comprising:

• a. upper and lower cylindrical support body halves;
• b. a plurality of piezoelectric elements;
• c. first and second elongated sensor element channels in the upper support body half, the first and second elongated sensor element channels adapted to retain first and second subsets of the plurality of piezoelectric elements;
• d. an access for electrically coupling the piezoelectric elements to a signal carrying conductor;
• and
• e. wherein each of the subsets of piezoelectric elements is graded in respect of sensitivity, and wherein piezoelectric elements are grouped together according to grade, and wherein subsets of piezoelectric elements having the same grade are mounted 180° opposite one another on their respective support body half.