36
Subject to change without notice
M e a s u r e m e n t s
9 Analysis
The HMO series oscilloscopes features an analysis function for
the collected data records which are displayed on the screen.
Simple mathematical functions can be performed with the func
-
tion “Quick mathematics” while more complex functions and
the linking of functions can be accomplished with the formula
editor. The MATH menu includes mathematical functions for
the recorded signal types. The mathematical functions track
the changes of the included signals and only apply to the vis
-
ible area. You can also activate the
frequency analysis (FFT) by
pressing the respective key. The function
QUICKVIEW
provides
a quick overview for the signal properties. A masked-based
PASS/FAIL
test allows you to monitor signals automatically.
9.1 Mathematical Functions
The MATH menu includes mathematical functions for the
recorded signal types. The mathematical functions track the
changes of the included signals and only apply to the visible
area of the screen. If a signal is cut off at the edge of the screen
may indicate that the corresponding mathematical curve is also
truncated. The DIV encoder can be used to scale an activated
mathematical curve.
The MATH menu is divided into Quick Mathematics and formula
sets. Quick Mathematics is designed for simple and quick cal
-
culations. The formula sets, however, allow more complicated
links.
Fig. 9.1: Mathematics short menu
9.1.1 Quick mathematics
Pressing the MATH key
26
in the VERTICAL control panel will
activate a short menu. The lowest soft menu key
QM/MA
activates
Quick Mathematics or the formula editor.
QM
stands for Quick
Mathematics and
MA
for die Mathematics Advanced (formula
editor). You can toggle between the two
mathematical functions
by pressing this soft menu key.
The
soft menu keys in the QM menu allow you to configure the
Quick Mathematics function. With the first and the third soft
menu key, you can choose the respective channel (
source) for
the
Quick Mathematics calculation. You may only choose acti-
vated analog channels. The central soft menu key allows you
to select the calculation type addition (ADD), subtraction (SUB),
value applies to the total number of measurements. The total
number of measurements will be displayed in the statistics.
The key RESET STATISTIC resets the statistics. All recorded
values are erased. This function can be used to restart the
statistics at a defined point. The key CLEAR MEASUREMENTS
deactivates the automatic measurements.
Fig. 8.3: Statistic for Automeasurements
