25.7 Transducer Location

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The placement (location) of a vibration transducer is a critical factor in machine condition monitoring

and fault diagnostics. Using several locations and directions when recording vibration information is

recommended. As always, it depends on the application and whether or not the expense is warranted. If

the vibration component which relates to a given fault condition is not recorded, no amount of analysis

will extract it from the signal. When selecting sensor locations consider the following:

* Mechanical independence

* The vibration transmission path

* Locations where natural frequency vibrations may be excited (flexible components or attachments)

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