Abstract
A fast meter of the phase difference of two arbitrarily shaped signals at a frequency of 0.2 to 6 MHz is proposed. The device allows measuring the phase difference for the first harmonic with an error of not more than 1° within ∼20 μs. The signal frequency and amplitude may vary at a speed of up to 20 MHz/s and 40 dB/sec, respectively. Basic signal processing and phase calculation are implemented digitally in a field programmable gate array. The electronics design features are presented, the signal processing methods are described, and the meter parameters and the results obtained on the physical facility are given.
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Original Russian Text © G.V. Karpov, A.S. Styuf, 2015, published in Avtometriya, 2015, Vol. 51, No. 1, pp. 87–91.
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Karpov, G.V., Styuf, A.S. Fast digital meter of the phase difference between the ion beam and accelerating voltage signals. Optoelectron.Instrument.Proc. 51, 72–75 (2015). https://doi.org/10.3103/S8756699015010112
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DOI: https://doi.org/10.3103/S8756699015010112