TSA (Time Synchronous Averaging) Spectrum Viewer

NI InsightCM™ 3.3 Help

Edition Date: December 2018

Part Number: 374498G-01

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Parent Topic: Available Viewers

Supported Sensors: Vibration sensors that acquire waveform data, such as acceleration.

The TSA (Time Synchronous Averaging) Spectrum viewer displays the power spectrum of the TSA waveform data from a specific acquisition. Move the cursor along a trend curve to update this viewer with the spectrum measurement at different times.

What do you want to do?

Task Action
Set the number of averages NI InsightCM performs to create the waveform. Click Settings on the viewer toolbar and select Viewer Settings. In the resulting dialog box, enter the number of averages you want NI InsightCM to perform.
Display fault frequencies. Click the Settings menu and select Fault Frequencies. In the resulting dialog box, select the fault frequency you want to display.
Display each plot in a separate axis system. To display each feature or spectral band plot in a separate, stacked axis system rather than overlaying all curves, click Stacked Charts .
Compare measurements from different sources or times. Create a data event reference.

Related link: Comparing Measurements from Different Sources or Times
Move the cursor to the nearest peak. Click Find Peak on the viewer toolbar to move the cursor to the nearest peak.
Note  The peak may not be a point represented on the graph because it may fall between two recorded points.
Disable auto-scaling to manually set the scale for the viewer. Click Set Scale on the viewer toolbar. Uncheck Auto-scale and set the maximum and minimum values you want the viewer to use.
Determine if a peak in the spectrum is synchronous with the running speed of the equipment. Click Cursor on the viewer toolbar and select Harmonic.

Related link: Adding Harmonics and Sidebands to Viewers
Use logarithmic scaling for the y-axis. Click Set Scale on the viewer toolbar. In the Set Scale dialog box, enable Logarithmic Y axis.
Select the source sensor. If you have more than one feature selected in the asset tree, you can select the source sensor for the viewer by clicking Choose Assets on the viewer toolbar.

Related Information

TSA (Time Synchronous Averaging) Waveform Viewer

Adding, Changing, and Removing Viewers

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