Shaft speed and vibration sensor apparatus

摘要

A rotary apparatus comprises a shaft having a rotational axis, a rotation indicator formed on the shaft, a target feature proximate the rotation indicator, and a sensor proximate the target feature. The target feature extends circumferentially about the shaft, with a radial face transverse to the rotational axis and a circumferential face along the rotational axis. The sensor is oriented toward the rotation indicator to sense a rotational speed of the shaft, and oriented toward the target feature to sense transverse vibrations based on a radial distance to the target feature and longitudinal vibrations based on an axial distance to the target feature.

主权项

1. A rotary apparatus comprising:
a shaft having a rotational axis; a rotation indicator located on the shaft; a target feature proximate the rotation indicator and extending circumferentially about the shaft, wherein the target feature has a circumferential face extending along the rotational axis and a radial face extending transversely to the rotational axis; and a sensor proximate the target feature and oriented toward the rotation indicator to sense a rotational speed of the shaft, wherein the sensor is further oriented toward the target feature to sense transverse vibrations of the shaft based on a radial distance to the target feature and longitudinal vibrations of the shaft based on an axial distance to the target feature; wherein the circumferential face of the target feature is axially arcuate proximate the sensor.