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Vibration Sensors for Motors and Pumps Make Waves

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Well, they don’t make waves, they measure them! Read up on how vibration sensors for motors and pumps work.

It is important to check up on a machine’s calibration and outputs. You can also measure speed, temperature, pressure, and vibration to know how to ensure machinery works best.

Any delay that happens is because the machine broke down. It broke down because the team didn’t check it enough to know if it was making a funny noise, vibrating badly, shaking, or getting too hot. Avoid this by investing in vibration sensors for motors.

Meaning and Forms of Vibration

Vibration is described as the mechanical oscillation of a machine or device at its equilibrium point (or just the back-and-forth motion of a system or component).

Some vibration in industrial equipment is often unavoidable, but it can also be a warning indication of a problem.

There are two types of vibration in machine monitoring:

  1. Axial Vibration – A transverse shafting vibration or oscillation parallel to the axis of a motor (which is called vibration).
  2. Radial Vibration – Radial Vibration is caused by a force exerted from the shaft outward. When there is a heavy point in the motor as it spins, radial vibration will occur.

Types of Vibration Sensor

  1. Accelerometer

Accelerometers are instruments that measure a structure's vibration (or acceleration of motion).

They have a sensor that uses “the piezoelectric effect” to transform mechanical force induced by vibration or a shift in motion into an electrical charge.

Piezoelectric accelerometers are divided into two categories:

  • High Impedance
  • Low Impedance
  1. Strain Gauge

A strain gauge is a device that measures the amount of pressure on a machine component.

A strain gauge is a sensor whose impedance changes in response to force applied; it transforms force, pressure, tension, weight, and other variables into a change in electrical resistance that can be measured.

Stress and strain are produced when additional forces are exerted on a fixed object.

  1. Eddy-Current or Capacitive Displacement Sensor

Non-contact Eddy-Current sensors detect the position and/or change of position of a conductive device. Magnetic fields are used to control these sensors. The sensor is equipped with a probe that generates an alternating current at its tip.

Eddy currents are tiny currents created by the alternating current (AC) in the component.

Factors to Choose a Vibration Sensor

  • Range and precision
  • Situational factors
  • The measuring surface's structure

The accelerometer is the most frequent of these three sensors since it has a wide frequency range.

NOTE: Medium-accuracy eddy current or capacitive sensors are not ideal for high-resolution purposes.

Strain gauges are flexible and precise, and they are safe to use in prone situations.

Choose the ideal vibration sensors for motors or pumps to get the best results in commercial processes.

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