Tektronix TDS5000B Series Online Help

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Offset, Position, and Scale
The settings that you make for offset, scale, and position affect the math waveform you obtain.
Here are some tips for obtaining a good display:
 Scale and position the source waveform so that it is contained on the screen. (Off-screen
waveforms may be clipped, resulting in errors in the derivative waveform).
 Use vertical position and vertical offset to position your source waveform. The vertical
position and offset will not affect your derivative waveform unless you position the source
waveform off screen so that it is clipped.
Math Waveform Sources
Math waveforms can be created from:
 Channel waveforms
 Reference waveforms
 Measurement scalars (automated measurements) that measure channel, reference, or math
waveforms, or histograms.
 Other math waveforms
 Variables
Dependencies
In general, math waveforms that include sources as operands are affected by updates to those
sources:
 Shifts in amplitude or DC level of input sources that cause the source to clip also clip the
waveform data supplied to the math waveform.
 Changes to the vertical offset setting for a channel source that clip its data also clip the
waveform data supplied to the math waveform.
 Changes to the acquisition mode globally affects all input channel sources, modifying any
math waveforms using them. For example, with the acquisition mode set to Envelope, a Ch1
+ Ch2 math waveform will receive enveloped channel 1 and channel 2 data, and will also be
an envelope waveform.
 Clearing the data in a waveform source causes a baseline (ground) to be delivered to any math
waveform that includes that source until the source receives new data.
Math Waveform Expression Syntax
Build math waveforms using the Predefined Expressions or Equation Editor control window To
help you create valid math waveforms, these tools block most illegal entries by disabling any
window element that would create an invalid entry in the math waveform expression.
Predefined expressions are performed from the Math Setup control window by selecting an
expression.
The syntax that follows describes valid math expressions using the Equation Editor:
<MathWaveform> := <Expression>
<Expression> := <UnaryExpression> | <BinaryExpression>
<UnaryExpression> := <UnaryOperator> ( <Term> )

Tektronix TDS5000B Series Specifications

General

Brand	Tektronix
Model	TDS5000B Series
Category	Test Equipment
Language	English