IMPROVED DIGITAL PHASE MEASUREMENT

C. Zet, C. Fosalau

Proceedings of 17th Symposium IMEKO TC 4 - Measurement of Electrical Quantities

September 8 - 10, 2010, Kosice, Slovakia

The paper presents a new method for measuring the phase shift between two signals. The method can be used as full FPGA implementation or in microcontroller based systems. In contrast with the classic method, where the measuring time is obtained from the reference clock signal by dividing it with high value factors, this method gets the measuring time from one of the signals by dividing it with a small factor, 10 for example. Thus, it results a dramatically diminish of the measuring time or a significant error improvement.