Labmaster 9 zi-a, Histogram – Teledyne LeCroy LabMaster 9Zi-A User Manual

Page 176

Advertising
background image

LabMaster 9 Zi-A

168

922157-00 Rev A

In general, Track is the tool to use if you want to capture a continuous
stream of data spaced closely together. To understand the change in a
parameter with time, Trend can be used if your data is spaced widely apart
and longer than the dead-time of the oscilloscope between acquisitions.
Think of Trend as a strip chart recorder for your oscilloscope.

Histogram

Histograms are graphical representations of data which divides it into
intervals or bins. These intervals/bins are plotted on a bar chart such that
the bar height relates to the number of data points inside each interval/bin.
Various histograms can be setup using Measure or Math dialogs.
Thumbnail versions of Histograms are called Histicons. Also, Persistence
can be applied to Histograms.

PLEASE NOTE THE FOLLOWING:

The number of sweeps comprising the histogram is shown on the trace
descriptor label:

The range of a histogram is limited to the portion of the trace that is
visible on screen. That is, if you zoom in on a trace, the histogram does
not contain data for that part of the original (no longer visible) trace.

Single Parameter Histogram Setup

Setup a single parameter histogram can be done from Measure or Math
dialogs. The following sections demonstrate both methods.

S

INGLE

P

ARAMETER

H

ISTOGRAM

S

ETUP

U

SING

M

EASURE

Touch Measure → Measure Setup... on the menu bar to access the
Measure dialog. The My Measure button should be selected by default on
the Measure dialog.

There are two ways to access parameters when setting up your
measurement. They only differ in the order of the steps.

Use the Px buttons on the Measure Dialog

Use the Measure button on a Px Dialog

Choose the parameter from the Select Measurement pop-up dialog.

Advertising