Title :
Heterodyne Measurement System (HMS) for Determining Phase Angles
Author :
Mohns, Enrico ; Kahmann, Martin
Author_Institution :
Phys.-Technische Bundesanstalt, Braunschweig
fDate :
4/1/2007 12:00:00 AM
Abstract :
This paper describes a method to determine the phase angle between two voltages via complex ratio of frequency-shifted sinusoidal signals. This allows the use of precision-sampling methods for signals with frequencies up to the audio-frequency range and with rms voltage levels up to 7 V and a maximum voltage ratio of 1:10
Keywords :
measurement systems; phase measurement; signal sampling; frequency-shifted sinusoidal signals; heterodyne measurement system; phase angle measurement; precision-sampling methods; signal sampling; Discrete Fourier transforms; Filters; Frequency measurement; Goniometers; Helium; Phase measurement; Power measurement; Sampling methods; Signal generators; Voltage; Modulation; phase angle; sampling methods;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2007.890624
