Title :
Quasi-Synchronous Microcontroller-Based Highly Accurate Digital Sampling of AC Signals
Author :
Ihlenfeld, Waldemar G Kürten ; Mohns, Enrico ; Serra, M. ; Dauke, Kristian ; Suchy, Andreas
Author_Institution :
Phys.-Technische Bundesanstalt, Braunschweig
fDate :
4/1/2007 12:00:00 AM
Abstract :
An easy-to-use and low-cost quasi-synchronous multichannel digital sampler controller to aid routine laboratory ac measurements by digital sampling is described. Using a single digital sampling voltmeter, accurate measurements of ac quantities can easily be done with uncertainties of a few microvolts per volt. Measurement results and consistent uncertainty calculations are described
Keywords :
digital voltmeters; electric current measurement; measurement uncertainty; microcontrollers; signal processing equipment; signal sampling; ac measurements; ac signals; digital sampling voltmeter; measurement uncertainty; quasisynchronous microcontroller; quasisynchronous multichannel digital sampler controller; Analog-digital conversion; Clocks; Decision support systems; Discrete Fourier transforms; Frequency conversion; Hardware; Phase locked loops; Phase measurement; Sampling methods; Voltmeters; Accurate ac measurements; a nalog-to-digital conversion; alternating current (ac) ratio; effective value; sampling methods;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2007.891039
