Rolls-royce Corporation

Werner P Schiffers

John Richard Webster

Daniel Clark

Huw Llewelyn Edwards

Faidon Mitzalis

Vishal K Dhutia

Edoardo G Frau

Mathias H Broman

Mathias Broman

Vishal Dhutia

Edoardo Frau

Apparatus to control transmission of data, the apparatus comprising: a controller configured to: receive data from at least a first sensor within an azimuth thruster; control storage of the received data in memory; determine whether at least one criterion is satisfied, the at least one criterion varying with the relative positioning of a first antenna mounted on a lower housing of the azimuth thruster and a second antenna mounted on an upper housing of the azimuth thruster, the lower housing being configured to rotate relative to the upper housing; and control transmission of the stored data from the first antenna in response to determining that the at least one criterion is satisfied.

Apparatus and methods for controlling transmission of data

A component including a substrate with dielectric coating on the substrate. The electrical reactance of the dielectric coating configured for the propagation of electromagnetic surface waves. The dielectric coating is arranged as a plurality of discrete pathways. Also a signal transmission system including a component, an electromagnetic surface wave transmitter coupled to the substrate, and an electromagnetic surface wave receiver also coupled to the substrate.

Signal transmitting component

A strain sensor apparatus for a rotatable shaft including a radiation emitter/receiver, a vibration element attached to the shaft and a reflector that is positioned to reflect radiation onto the vibration element.

Torque measurement

A strain sensor apparatus for a rotatable shaft including an emitter/receiver, a vibration element attached to the shaft and arranged for receiving and reflecting signals to and from the emitter/receiver wherein the vibration element includes asymmetric stiffness properties between a radial and axial and/or circumferential directions relative to a rotational axis of the shaft.

Strain measurement of rotating components

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.

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Ashby-de-la-Zouch, United Kingdom

Werner P Schiffers