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How to Design a Good Vibration Sensor Enclosure (Part 1) (Download)

June 7, 2022

Read this article online.

A well-constructed mechanical enclosure design for a MEMS accelerometer will ensure that high-quality vibration data for condition-based monitoring (CbM) is extracted from the monitored asset. The mechanical enclosure used to house a MEMS accelerometer needs to have a frequency response better than the integrated MEMS.

This article uses modal analysis to deliver the natural frequencies possible with enclosure designs. Guidance on vibration sensor design is provided using theoretical and Ansys modal simulation examples. It’s shown that geometry effects, such as enclosure shape (e.g., a cylinder or a rectangle) and height, dominate the natural frequencies in enclosure design.

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