Teledyne LeCroy AORM - Advanced Optical Recording Measurements - Manual (Page 76)

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ISSUED: June 2013 923133 Rev A
PRES PIT RESOLUTION
Description
Pit Resolution measures the ratio of the Pit Average Amplitude (see paa measurement
description) of the smallest of the ‘nT’ pits or spaces in the data signal to that of the largest:
PRES
paa
paa
low n
high n
= ⋅ _
_
100%
The low and high ‘nT’ values for performing the calculation must be provided by the user through the
associated measurement configuration options. The value shown is in units of percent. The
measurement calculation is compliant with the definition of Pit Resolution as defined by IEC
13549:1993 Section 15.3.1.
Display Options
ORM parameter calculations can be displayed, histogrammed, and trended in a variety of ways.
The table provides a concise description of the value or values displayed using each approach.
DISPLAY TYPE VALUE DISPLAYED
Parameter Statistics Off Single value of the pit resolution for the last acquisition.
Parameter Statistics On
Overall average, minimum, maximum, and sigma of the single
pit resolution value calculated per acquisition for all acquisitions
since the last C
LEAR S WEEPS operation.
Histogram Function
Histogram of the single pit resolution value calculated per
acquisition for all acquisitions since the last C
LEAR S WEEPS
operation.
Trend Function
Trend of the single pit resolution value calculated per acquisition
for all acquisitions since the last C
LEAR S WEEPS operation.