A Hardware Platform for Frequency Domain Spectroscopy and Frequency Response Analysis

This paper describes a development of a hardware platform suitable for the frequency domain spectroscopy (FDS) and frequency response analysis (FRA) applied for high-voltage machine diagnostics. The principle of the FDS and FRA methods widely used by maintenance technicians are briefly reviewed. Important technical requirements for the instruments utilizing these methods are stated. A design of a hardware platform with parameters fitting both of the method and engagement of the latest electronics components is discussed. In order for verification of the design platform, a basic implementation of a vector voltmeter is described. Long-term stability, phase shift sensitivity, and accuracy of the platform are evaluated.