Aiming at the problem that when some of the output signals of the parallel six-axis acceleration sensor occur interference distortion

system decoupling algorithm will completely fail

a fault self-diagnosis and self-repair algorithm suitable for multi-dimensional sensors is proposed. The six force coordination equations of the system are derived by excavating the deformation coordination conditions in the topological configuration of the sensor elastomer. According to this

an ideal coordinated closed chain of a regular polygonal structure with respect to the transition parameters is constructed. The sensor fault diagnosis group is given by analyzing the constraint relationship of the closed chain to the force coordination equation

and the sensor fault self-diagnosis and selfrepair algorithm are established. By defining the fault self-repair rate indicator and statistically calculating the repairable condition

the highest repair rate that the algorithm can achieve is 72. 62 %. In addition

when the sensor branch failure probability is less than 22 %. The prototype test results show that the comprehensive decoupling error of the reconstruction system does not exceed 0. 18 % after the failure of the local branch

which verifies the feasibility of the scheme.