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22 November 2023

Two Benefits Of Accelerometers For OEMs

Industrial accelerometers play an important role in machine vibration monitoring and position measurement applications, and can benefit OEMs of turbines, motors, and rotating devices in several ways. By investing in the right accelerometers, velocity sensors, eddy current proximity probes and other monitoring equipment, OEMs can ensure that their products operate within the required parameters, and that potential problems are identified and addressed quickly and at an early stage.

In this article, we look at the two main benefits of accelerometers for OEMs, focusing first on accelerometers for slow rotational speed tests (a requirement of the main input shaft/main bearing) and, secondly, for low-frequency test facility requirements.


Slow Rotational Speed Testing

Accelerometers can be deployed to measure the rotational speed of a turbine or other low speed rotating machinery with high precision and accuracy, achieving consistent results in two ways. Firstly, accelerometers use a high sensitivity rating (500 mV/g) to detect amplitudes in the lower frequency range, which is ideal for measuring slow rotations. And secondly, accelerometers measure acceleration by detecting changes in an object’s velocity per second – rather than calculating how speed changes over time – allowing the sensors to accurately measure rotational angles and speeds even when the rotation is slow.

Accelerometers can also be used to monitor overall machine vibrations on slow rotational speed turbines and shafts, providing valuable feedback and simplifying sensor installation and maintenance.

Low-Frequency Test Facility Requirements

Accelerometers are essential tools for low-frequency testing, enabling OEMs to measure both ‘absolute vibration’ – which is the acceleration an object experiences relative to freefall – and linear acceleration, as well as various inclination and vibration measurements. 

The most common type of accelerometer used in low-frequency testing is a Micro Electro Mechanical System, or MEMS accelerometer, which uses microscopic capacitors to measure the motion of a mass attached to a spring or other flexible component.

Low frequency testing depends on accurate monitoring and measurements of vibration and shock forces to ensure the safety and reliability of rotating products and components. The main challenges for OEMs meeting low-frequency test facility requirements are ensuring that all components used in the test facility meet the required safety standards, and that the components are accurately calibrated prior to testing, to ensure accurate results during the testing procedures.

An accelerometer will provide reliable data on these forces that can be used by OEMs to make informed decisions on product design, test procedures, and performance, as well as identify potential problems before they cause a safety risk.

Find Out More

To find out more about our accelerometers and industrial monitoring solutions for OEMs, please contact Sensonics today on 01442 876833, or click here to arrange a call back with one of our experienced team.

Turbine Supervisory Guide Long CTA 3

Image source: Canva