Device for detecting the spatial orientation of excessively heated points
First Claim
1. A device for detecting the spatial orientation of excessively heated points of wheel bearings and/or wheel running treads of rail vehicles comprising deflecting means, said deflecting means receiving radiation from said wheel bearings and/or wheel running treads, said deflecting means being periodically changeable in its slope and being arranged in a path of rays from a measuring point to a heat radiation sensor (7), characterized in that an autocollimation mirror element (10), (13), (19) is provided, the mirror surface of which faces the path of rays coming from the heat radiation sensor (7), and, in at least one periodically recurring position of the periodically changeable deflecting means, the rays arriving from the heat radiation sensor (7) are reflected back into said heat radiation sensor (7).
3 Assignments
0 Petitions
Accused Products
Abstract
In the case of a device for detecting the spatial orientation of excessively heated points of wheel bearings and/or wheel running treads of rail vehicles, it is suggested that a deflecting device, such as an oscillating mirror 5, that can be varied periodically in its slope, be inserted into the path of the rays from a measuring point to a heat radiation sensor 7. The ray that is deflected when the slope of the deflecting device is changed can in this way also arrive on reflecting surfaces 10 for the purpose of autocollimation, thereby enabling an improvement in measuring precision. Radiation emitted from the detector is periodically reflected back onto the detector to provide a reference signal.
8 Citations
10 Claims
- 1. A device for detecting the spatial orientation of excessively heated points of wheel bearings and/or wheel running treads of rail vehicles comprising deflecting means, said deflecting means receiving radiation from said wheel bearings and/or wheel running treads, said deflecting means being periodically changeable in its slope and being arranged in a path of rays from a measuring point to a heat radiation sensor (7), characterized in that an autocollimation mirror element (10), (13), (19) is provided, the mirror surface of which faces the path of rays coming from the heat radiation sensor (7), and, in at least one periodically recurring position of the periodically changeable deflecting means, the rays arriving from the heat radiation sensor (7) are reflected back into said heat radiation sensor (7).
Specification