Understanding the Correct Sensor Orientation for Vibration Measurement

When it comes to monitoring equipment health, the orientation of vibration sensors is critical for accurate data collection. Our sensors measure vibration in three axes: X, Y, and Z. To ensure proper sensor orientation, the sensor has a sticker we can use as a guide, with the reference point often being the axis of a shaft.

Placement: Sensors should ideally be placed at the 3, 6, 9, or best at 12 o'clock positions relative to the shaft. The "best" recommended position is at "12 o'clock," which means the sensor is vertically aligned with the shaft.

Alignment: The axis of the sensor should be aligned with the shaft axis. This means one axis should be parallel and another perpendicular to the shaft's axis.

Y-Axis Alignment: Below the sensor ID number, there are two white arrows below the sensor ID. These arrows will help you align the Y-axis of the sensor. For proper orientation, the Y-axis needs to be squared off to the shaft as much as possible.

Axes Reference: When using the sensor sticker as a reference, the X and Y axes represent the base of the sensor, while the Z-axis represents the height.

Alignment Tool: To easily align the axis of the sensor, you can use a Slotted Washer, such as an 18-8 Stainless Steel washer with a 9/32" wide slot and a thickness of 0.02"- 0.026", available from McMaster-Carr (shown below).

By following these guidelines, you can ensure that your vibration sensors are correctly oriented, providing accurate and reliable data for monitoring equipment health.