Horizon Research Publishing
Based on achievements of the classical circuit theory, one of the most natural initial approaches to the diagnostics of electric chains is representation of diagnosed circuit in the form of a passive multi-pole network. Certain problems of test diagnosing of electric circuit on the basis of application of a matrix which elements are linearly related with the desired internal parameters are considered. Use of redundant experiments is presented. Analytical solutions of a task when the part of required parameters is known and way of diagnosis of multi-pole network with inaccessible nodes are received.