1-20
IM 701830-01E
Automated Measurements
≡
Page 9-4.
≡
Automatic measurement of waveform parameters
This feature automatically measures selected waveform parameters, such as rise time and pulse
width. You can select parameters separately for each channel, although you are limited to a total
of 16 parameters for the entire system. There are 26 parameters available for selection.
Statistical processing
You can perform statistical processing on any one of the parameters selected for automatic
measurement, based on a specified number of acquisitions.
Measurement
range
Measurement
values
Waveform Math
≡
Chapter 9.
≡
Simple computation (BASIC mode)
→
page 9-10.
Adds, subtracts, or multiplies two waveforms (Channels 1 and 2, 1 and 5, 1 and 3, or 3 and 7).
Results are displayed as waveform Math1 or Math2.
Addition and subtraction are useful for phase comparison, signal-logic checking, and for
comparison with the reference signal. Multiplication is useful for checking power signals
created by simultaneous input of voltage and current signals.
Subtraction-
computed waveform
Addition-
computed waveform
Multiplication-
computed waveform
Binarization (BASIC mode)
→
page 9-11.
Converts selected waveform into a binarized waveform. All voltages below the threshold
become 0, while voltages above the threshold become 1. This operation is available for Channel
1, Channel 2, and the Math1 waveform.
Phase-shifted computation (PHASE mode)
→
page 9-13.
Executes a phase shift of either Channel 2, 3, 5, or 7 (with respect to Channel 1), then adds,
subtracts, or multiples the result against the Channel 1 waveform.
All-channel binarization and D/A conversion (BINARY mode)
→
page 9-15.
Binarizes waveforms on all channels: all values below the threshold become 0, Voltages above
the threshold become 1. You can choose to generate an analog waveform through exponential
summation of the binarized waveforms.
Scaling of Math1 and Math2 waveforms
→
page 9-18.
The instrument normally auto scales when displaying the computed waveform, but manual
scaling can also be selected.
If you select auto scaling, the most suitable scaling value for displaying the waveform is
determined from the maximum and minimum values of the computed result.
If you select manual scaling, then the upper and lower limits of the computed waveform display
can be set to any desired values.
Note
Waveform computation cannot be performed on channels that have logic input modules installed.
1.5 Analyzing the Waveform
