Patent ID: 9574570
Date: 2017-02-21
CPC Classifications: F01D,F04D,F05D

Claim:
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.