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US 8,505,394 B2Granted
Strain measurement of rotating components
AssigneeROLLS-ROYCE plc
InventorsWerner Schiffers, John R. Webster
Life of this patent
Estimating the term…
Abstract
A strain sensor apparatus for a rotatable shaft including a radiation emitter/receiver, a vibration element attached to the shaft and a radiation-reflective annulus surrounding the shaft and vibration element.
Claims8
A strain sensor apparatus for a rotatable shaft, the strain sensor apparatus comprising:
- a radiation emitter/transceiver;
- a vibration element attached to the shaft, a direct line-of-sight between the emitter/transceiver and the vibration element being interrupted by a rotation of the shaft;
- and
- a radiation-reflective annulus, wherein
- the radiation-reflective annulus surrounds the shaft and vibration element, and
- radiation emitted by the emitter/transceiver is guided between the shaft and annulus and continuously impinges on the vibration element.
3 more elements
Dependencies are inferred from the claim text.