Loading ...
Loading ...
Loading ...
Application Examples
DS O5000 Series Digital Storage Oscilloscope User Manual
58
Note:
Note:
Note:
Note: The
The
The
The difference
difference
difference
difference between
between
between
between the
the
the
the overtime
overtime
overtime
overtime and
and
and
and the
the
the
the delay
delay
delay
delay triggers
triggers
triggers
triggers is
is
is
is that
that
that
that the
the
the
the overtime
overtime
overtime
overtime
trigger
trigger
trigger
trigger can
can
can
can identify
identify
identify
identify the
the
the
the pulse
pulse
pulse
pulse you
you
you
you need
need
need
need according
according
according
according to
to
to
to your
your
your
your set
set
set
set time
time
time
time and
and
and
and trigger
trigger
trigger
trigger on
on
on
on any
any
any
any point
point
point
point
of
of
of
of the
the
the
the pulse.
pulse.
pulse.
pulse. In
In
In
In the
the
the
the other
other
other
other word,
word,
word,
word, the
the
the
the overtime
overtime
overtime
overtime trigger
trigger
trigger
trigger occurs
occurs
occurs
occurs based
based
based
based on
on
on
on pulse
pulse
pulse
pulse identification.
identification.
identification.
identification. It
It
It
It
is
is
is
is similar
similar
similar
similar to
to
to
to the
the
the
the >
>
>
> mode
mode
mode
mode of
of
of
of the
the
the
the pulse
pulse
pulse
pulse width
width
width
width trigger,
trigger,
trigger,
trigger, but
but
but
but not
not
not
not the
the
the
the same.
same.
same.
same.
6.10
6.10
6.10
6.10 Example
Example
Example
Example 10:
10:
10:
10: Using
Using
Using
Using Math
Math
Math
Math Functions
Functions
Functions
Functions to
to
to
to Analyze
Analyze
Analyze
Analyze
Waveforms
Waveforms
Waveforms
Waveforms
Using math functions to analyze input waveforms is another advantage of the digital oscilloscope.
For example, you want to get the instantaneous difference between two channel waveforms. By
us ing the math function of the oscilloscope , you can get a better representation of the waveform
on the screen.
To
observe this signal, follow the steps below.
1. S e t the Probe option attenuation to 10X.
2. Open CH1 and CH2 at the same time, both with the attenuation of 10X.
3. Push the AUTOSET button to trigger a stable waveform.
4. Push the MATH MENU button to see the Math menu.
5. Push the Operation option button and select ‘ CH1+CH2 ’ .
6. Turn the horizontal SEC/DIV and the vertical VOLTS/DIV knobs to properly scale the
waveform for easy check.
In addition, the oscilloscope also supports the - and FFT functions. For a detailed analysis on FFT,
refer to Chapter 5.3.1 Math FFT .
Note:
Note:
Note:
Note: You
You
You
You should
should
should
should compensate
compensate
compensate
compensate both
both
both
both probes
probes
probes
probes before
before
before
before performing
performing
performing
performing the
the
the
the math
math
math
math operation;
operation;
operation;
operation;
otherwise,
otherwise,
otherwise,
otherwise, d
d
d
d ifferences
ifferences
ifferences
ifferences in
in
in
in probe
probe
probe
probe compensation
compensation
compensation
compensation will
will
will
will appear
appear
appear
appear as
as
as
as errors
errors
errors
errors in
in
in
in the
the
the
the differential
differential
differential
differential
signal.
signal.
signal.
signal.
As illustrated in the above figure, input a 1KHz sine wave from CH1 and a 1KHz square wave from
Loading ...
Loading ...
Loading ...