Nyquist diagram

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Nyquist diagram

[′nī‚kwist ‚dī·ə‚gram]
(control systems)
A plot in the complex plane of the open-loop transfer function as the complex frequency is varied along the Nyquist contour; used to determine stability of a control system.
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An impedance method measurement was utilized to study the pattern of semicircle Nyquist plots as measured by the capacitor sensor.
The Nyquist plots for 2 days and 4 days of drying duration as shown in Fig.
Although a higher number of nodes in the Nyquist plot would be better, the low frequency problems due to the low corrosion rate influences the measurement reading (PRCM, 2007).
The Nyquist plots for steel in 1 M HCl in the absence and presence of different L.
dl]) are calculated from the Nyquist plots and presented in Table 3.
Comparison of Nyquist plots of phosphated MS substrates under galvanically coupled and uncoupled conditions with varying area ratios (1:1, 1:2, and 1:3) in 3.
d1]) were determined from Nyquist plot by fitting the data using Boukamp software.
The parameters describing the equivalent circuit of these composites can be obtained from Nyquist plots [7].
Nyquist plots are nothing but the complex plane diagram of the complex impedance Z* = Z' [+ or -] jZ" where j = [square root of -1] is the imaginary unit.
EIS is commonly used to evaluate the barrier properties of protective coatings, and the results are commonly presented as Bode and Nyquist plots.
The AC impedance measurements are shown as Nyquist plots and polarization data as Tafel plots.
The existence of a single semicircle in Nyquist plot shows that there was only single charge transfer process during the anodic dissolution of MS and remained unaffected in the presence of N-Benzylimidazole added in the acid.