Definition
A vibration sensor (most commonly an accelerometer for industrial use) is the instrument physically mounted on or near a machine to measure its mechanical vibration and convert that motion into an electrical signal, which is then recorded or fed into vibration analysis software. It is the measurement instrument, distinct from the vibration itself and from the analysis performed on the resulting data.
Key facts
- The physical measurement instrument, not the vibration phenomenon itself or the analysis applied to its output.
- Mounting location and orientation directly affect what the sensor actually captures: poor mounting can produce misleading data.
- Can be permanently installed for continuous monitoring or used as a handheld tool for periodic route-based readings.
- Sensor frequency response range must match the fault frequencies of interest to be effective for a given diagnostic purpose.
How does Vibration sensor work or appear?
A vibration sensor converts the physical mechanical motion of a machine into a proportional electrical signal, typically using a piezoelectric or MEMS accelerometer element, so that vibration data can be recorded, transmitted, and subsequently analyzed rather than only felt or heard by a person nearby.
What should technicians inspect for Vibration sensor?
Vibration is the physical phenomenon being measured. A vibration sensor is the instrument that captures it. Vibration analysis is the subsequent interpretive step applied to the sensor's recorded signal, extracting frequency content to diagnose a specific mechanical condition: the sensor supplies the raw data, analysis supplies the meaning.
FAQ
Frequently asked questions
How are mechanical vibrations captured as a measurement signal?
Through a vibration sensor: an instrument, typically an accelerometer, mounted on or near a machine to convert its mechanical motion into an electrical signal for recording and subsequent vibration analysis.
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