# Interpreting Nyquist plot

When implementing the control for my application I got this Nyquist plot which made me flabbergasted.

If I zoom on the point $$-1 + 0j$$ I get the following image

How do I interpret this contour going to infinity? Do I have 1 or 2 counter-clockwise turns around $$-1 + 0j$$?

• How many integrators does your open loop have? – fibonatic Jun 16 '19 at 5:47