Instruments and Systems: Monitoring, Control, and Diagnostics Annotation << Back Measurement of phase and vibration monitoring of rotary equipment O.B. SKVORTSOV The paper gives an analysis of the application of correlation methods for evaluating phase signals. The obtained results show the equivalence of application of the correlation method using the discrete Fourier transform. It provides an assessment of the impact of the additive phase noise measurements. The possibility of reducing errors in the assessment phase is justified due to the normalization of the correlation coefficients. The obtained results can be used to construct control systems of the phases of oscillations of rotary equipment. Keywords: phase, phase shift, vibration, coefficient of correlation, normalization, signal to noise, measurement error, random process, rotor balancing. Contacts: E-mail: skv@balansmash.ru Pp. 53-56.