An application of an LMS adaptive algorithm for a digital AC bridge

Abstract

This paper describes a new microprocessor controlled ac bridge method using an LMS adaptive algorithm. The main advantages of the method include: (i) the algorithm is simple to implement because no complex computations are actually involved, and (ii) slowly time varying impedances may also be measured or monitored. A realtime implementation of the bridge has been made and test results obtained have been incorporated in the paper.