Fluke Defines Terms Associated With Vibration
Fluke provides a basic glossary of vibration terms for those involved in equipment maintenance and vibration diagnosis. Vibration is said to be one of the earliest indicators of a machine's health. Understanding why vibration occurs and how it manifests itself is a key first step towards preventing vibration from causing trouble in the production environment, according to the company. Acceleration is the rate of change of velocity often depicted as 'g' or in 'mm/s2' in the metric system and 'in/sec2' in the English system. Acceleration is not constant but will vary through the vibration cycle, reaching maximum levels as velocity reaches its minimum. This is typically when a particular mass has decelerated to a stop and is about to begin accelerating again. Next, an accelerometer is described as a transducer whose electrical output responds directly to acceleration. Accelerometers typically cover a much wider frequency range, along them to pick up signals n