FFT display
Create a spectral analysis display that uses a Fast Fourier Transform (FFT) to measure the relative signal intensity as a function of frequency.
Note
If monitoring data at high sample rates, you must set the Recording Mode to Fast Monitor Mode .
-
Scaling Tools
-
Scale Vertical Axis
Click to automatically scale the vertical axis so that all the data is in view.
-
Auto Sample Rate
Automatically adjust the sample rate and number of bins as the frequency axis scale changes. Capstone activates this tool by default.
-
Normalize Data
Select to change the vertical scale to make 1 the maximum value.
-
-
Plot Tools
-
Run Selector
Change the visibility of individual data runs without deleting the data.
-
Coordinates Tool
Click to add a coordinates tool to determine the coordinates of a single data point. Use the delta tool to determine the difference between two data points.
-
Record Trace
Use this tool to record a snapshot of the trace to analyze in a graph display.
-
Annotation Tool
Use the annotation tool to label a data point with a brief note.
-
-
Number of Bins
Increase or decrease the number of bins on the display. These tools are only available if the automatic sample rate adjustment tool is not selected.
-
Axis Tools
-
Add y-axis
Click to add an additional y-axis to the plot area.
-
Add Plot Area
Display an additional measurement on a separate plot area located below the current plot area.
-
Remove y-axis
Click the axis you want to remove, then click the remove button.
-
Rearrange Axes
Use to rearrange y-axes. Click the tool, then drag a y-axis to a different location.
-
-
Display Tools
-
Pin Toolbar
Click to prevent the toolbar from hiding automatically.
-
Display Properties
Click to access the display properties.
-
Show or Hide Tools
Click to show or hide specific tools from the toolbar.
-
-
Measurement Selector
Click the measurement to select a different measurement to display. Click the unit to select a different unit for the current measurement.
-
Axis
- Click and drag to scale each axis individually.
- Double-click the maximum or minimum value to set to a specific value.
- Right-click to access axis properties and lock the scale.
- Plot Area
- Click and drag to move the plot area.
- Right-click the plot area to access the Plot Area Properties.
- Right-click the trace to access the Run Properties.
- Legend
- Click a run to apply the trace tools to that run.
- Right-click a run name to access the Plot Area Properties.
- Right-click a symbol to change the run color and access the Data Set Properties.
-
Display Title
Click, then enter a custom title for the display.