Phase rulers (called rotation rulers in PicoScope

Automotive) are a set of lines that can be drawn over a scope trace to help measure phase angles. This is particularly useful for analyzing rotating machines and AC power waveforms.

Place two phase rulers at the start and end of a cyclic waveform. Next, drag one or two time rulers onto the scope view, and PicoScope will then display time ruler measurements as phase angles as well as times.

Optionally, PicoScope can draw additional rulers to divide the waveform into equal partitions (for example, four partitions of 90 degrees each).