Experimental Study on Seafloor Vertical Deformation Monitoring Based on MEMS Accelerometer Array

摘要

Seafloor vertical deformation is important during the methane hydrate production. A monitoring system for seafloor vertical deformation based on Micro Electro Mechanical Systems (MEMS) accelerometer is proposed. The output of the accelerometer is transferred to tilt angle. Then the amount of the seafloor vertical deformation is calculated. A lab experiment and error analysis are carried out. The maximum absolute error is 8.552 mm, the minimum absolute error is 0.795 mm, and the mean absolute error is 4.16 mm. The results demonstrate the system has a good monitoring effect.