<p>Measurement algorithms were developed and a numerical simulation of data processing was performed to adjust a multi-channel tensor SQUID system. Measurement algorithms involve changing the spatial orientation of the magnetic signal source or measuring channels. Measurement algorithms in a uniform magnetic field of a Helmholtz coil system are considered. The proposed algorithm assumes that the distribution of values of spatial invariants of the magnetic signal is used to evaluate the obtained results. This allows us to explicitly estimate the systematic errors in the analysis of magnetic signals. The results of magnetic field source localization are presented, which show a significant increase in accuracy when using the proposed algorithm for processing magnetic signals.</p>