using changes in luminescence, e.g. at the distal end of the fibres

Full Title

Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 > using changes in transmittance, scattering or luminescence in optical fibres > at discrete locations in the fibre, e.g. using Bragg scattering > using changes in luminescence, e.g. at the distal end of the fibres