Vibrations are converted by a Vibration Sensor into an electrical output that is directly proportionate to the vibration it senses. Rotating machines have these sensors placed to track the vibration levels. Vibration monitoring and analysis are crucial to quality control. A common vibration sensor uses three variables—acceleration, displacement, and velocity—to determine the vibration levels. The frequency and the intensity of these three equipment-related characteristics influence the choice of vibration sensors.
A Vibration Sensor, sometimes known as a piezoelectric sensor, is a piece of mechanical gear that transforms object vibrations into an electrical output. When a machine malfunctions, it is used to detect and record changes in velocity, acceleration, and displacement as well as to correct any external stimulation, uneven centrifugal force, or surface friction.
Velocity Sensor measure the velocity of an object or structure in response to vibration. They are less sensitive than accelerometers, but can provide more accurate data on low-frequency vibrations.Velocity sensors are often used in rotating machinery, such as motors and turbines, where they can detect bearing faults and other mechanical problems. They are also used in automotive and aerospace applications, where they can provide data on engine and structural vibration.
Proximity sensors are used to detect the proximity of an object or structure to a fixed point, such as a machine frame or foundation. They are often used in conjunction with accelerometers or velocity sensors to provide additional data on vibration amplitude and frequency. Proximity sensors can be designed to measure either linear or angular displacement, and are available in various ranges and sensitivities. They are often used in industrial machinery, where they can detect misalignment, imbalance, and other mechanical problems.
