What is an accelerometer primarily used for?

The correct choice indicates that an accelerometer is primarily used for vibration measurement. This is because accelerometers are devices specifically designed to measure the acceleration forces acting on an object, which can include vibrations caused by movement or dynamic forces. They can detect changes in velocity over time, making them valuable in various applications where monitoring vibrations is crucial, such as in machinery health monitoring, automotive systems, and structural health assessments.

In addition, since vibrations can indicate potential issues in equipment operation or structural integrity, utilizing accelerometers helps in predictive maintenance and Total Productive Maintenance (TPM) strategies. By identifying abnormal vibrations, organizations can address problems before they lead to failures, thus improving reliability and efficiency.

The other options—pressure measurement, temperature measurement, and sound level measurement—highlight other types of sensors or measurement instruments that serve different purposes, but these are not the primary functions of an accelerometer.