A mounting bracket and calibration system for attitude calibration of marine nodal instruments

Abstract

This utility model belongs to the field of marine geophysical exploration and discloses a device mounting frame and calibration system for attitude calibration of marine nodal instruments. The device mounting frame includes a three-axis rotary table and a device mounting part assembled at the moving platform connection end of the three-axis rotary table for synchronizing the attitude of the marine nodal instrument and the fiber optic inertial navigation system. The device mounting part includes an upper mounting part for mounting the marine nodal instrument and a lower mounting part for mounting the fiber optic inertial navigation system. The system includes the aforementioned device mounting frame, as well as the fiber optic inertial navigation system and computer equipment. This utility model is used after the attitude sensor's self-calibration operation and before the marine nodal instrument is officially deployed to the seabed. It is equivalent to further calibrating the entire marine nodal instrument with the attitude sensor, thereby improving the accuracy of the data collected by the marine nodal instrument and reducing exploration risks. This utility model is applicable to the marine oil and gas reservoir development industry for further calibration of marine nodal instruments after the attitude sensor has been placed.

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