Fluke PM3370B user manual Oversh Overshoot, 100%, Falling presh =

5 - 94 FUNCTION REFERENCE

-oversh (OVERSHOOT)

Measures the overshoot (in %), related to the amplitude of the signal. There are two types of overshoot: rising overshoot and falling overshoot (undershoot).

rising oversh = max (of 1st rising slope) -high *100% high - low

falling oversh = low - min (of 1st falling slope) *100% high - low

-presh (PRESHOOT)

Measures the preshoot (in %), related to the amplitude of the signal. There are two types of preshoot: rising preshoot and falling preshoot.

rising presh =	low - min (of 1st rising slope)		*100%
		high - low
falling presh =	max (of 1st falling slope) -high		*100%
		high - low

It is possible to perform measurements on the part of the waveform between the two cursors. This function is called cursor limited measurements and is turned on via the key sequence MEASURE >> CURSOR LIMIT & STATIST >> CURSOR LIMITED yes. Cursor operation is done via the TRACK and Δ controls and via the CURSOR menu.

Results of the measurements MEAS1 and MEAS2 are displayed in the top left corner of the screen. When you press the key sequence MEASURE >> CURSOR LIMIT & STATIST >> STATIST on, the screen displays three values per MEAS function. These values are measured over the total number of acquisitions for that particular measurement and are updated instantly. The statistic measurement values are as follows:

-absolute minimum value

-absolute maximum value

-mean value