EP 0424570 B1 19930901 - DEVICE FOR CONTACTLESS DETECTION OF OVERHEATED PARTS ON PASSING RAILWAY VEHICLES
Title (en)
DEVICE FOR CONTACTLESS DETECTION OF OVERHEATED PARTS ON PASSING RAILWAY VEHICLES
Publication
Application
Priority
EP 89119943 A 19891027
Abstract (en)
[origin: EP0424570A1] A device for the contactless detection of overheated parts, such as, for example, axle bearings, brakes, wheel tyres, on passing rail vehicles is described. The device has a sensor (2), which is provided with an infrared optical system, and an infrared detector (12) with subsequent electronics and evaluation circuit (15) connected downstream. The device is characterised in that the sensor with the infrared optical system (3) on the one hand and the infrared detector (12) with subsequent electronics on the other are arranged spatially separated from one another and in that in order to pass on the infrared beams from the optical system to the detector at least one fibre which guides the infrared light in the wavelength range of approximately 2-12 micrometers is provided. In a preferred embodiment, a plurality of fibres (16, 17, 18) which run parallel to one another are used, the sensor-side light injection surfaces of which are directed towards different heat targets and whose detector-side light emergence surfaces have a scanner element (19, 20) opposite them which successively guides the beams which emerge from these emergence surfaces onto the detector in a constantly repeating fashion. An assignment electronic system (25) connected downstream receives an item of information relating to the current position of the scanner element (19, 20) and assigns the individual temperature-analogous electrical signals unambiguously to the respective fibres (16, 17, 18). <IMAGE>
IPC 1-7
IPC 8 full level
B61K 9/06 (2006.01)
CPC (source: EP)
B61K 9/06 (2013.01)
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0424570 A1 19910502; EP 0424570 B1 19930901; AT E93787 T1 19930915; DE 58905479 D1 19931007; ES 2045341 T3 19940116
DOCDB simple family (application)
EP 89119943 A 19891027; AT 89119943 T 19891027; DE 58905479 T 19891027; ES 89119943 T 19891027