Kidde Technologies Incorporated

Beth A Dutson

Paul Alan Rennie

Paul David Smith

Robert G Dunster

Paul W Weller

Paul Rennie

Paul D Smith

Paul Smith

A temperature sensing system comprises a conductive tube, a shape memory alloy (SMA) element, and a detector. The SMA element is disposed to create an electrical contact with the electrical tube when subjected to at least a critical temperature, and the detector is configured to identify an alarm condition when the conductive tube and the SMA element form a closed electrical circuit.

Heat detector with shape metal alloy element

A temperature sensing systemcomprises an optical waveguide, a shape memory alloy (SMA) element, and an interrogator. The SMA elementis deformable as a function of temperature and at least partially surrounds the optical waveguide. The interrogatoris configured to detect distributed temperature along the optical waveguideusing spectroscopy and to detect strain in the optical waveguideinduced by deformation of the SMA elementto identify local hot spots along the optical waveguide

Optical fibre distributed LHD with SMA element for discrete alarm

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Hook, United Kingdom

Beth A Dutson