Section 4 — Measurement Types and their Uses
71
Measuring cross channel phase
Cross Channel Spectrum (ODS)
This section explains how to use the Cross Channel Spectrum (ODS)
measurement mode. This process is similar to modal impact testing. It
involves:
1. Planning and noting the locations and directions for your recordings.
2. Setting up your channels and sensors to measure the frequency you
are interested in.
3. Taking recordings at the specific locations and directions used.
4. Reviewing the data:
• On your instrument
• In Ascent
• In Operating Deflection Software (ODS) such as ME’scope
MORE: Contact your local sales representative for more details
about this feature.
1 — Plan Cross Channel Spectrum (ODS) Recording
Routine
We recommend you draw a quick sketch of the machine you are
investigating and number the points you plan to measure “1”, “2”, “3”,
etc. Doing so will ensure you can specify the names, locations, and
directions for your readings once you have taken these.
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