Patent ID: 6012507
Filing Date: 2000-01-11
Classification: B22D,G01K

Abstract:
Apparatus for measurement of a temperature of a moving surface of a metal slab to provide a measured temperature indication corresponding to an actual temperature at a location on said surface, said apparatus comprising:a first temperature measuring sensor mounted to move between a first position in which the first sensor is out of contact with a surface of the slab, and a second position in which the first sensor contacts said surface at said location, said first sensor generating an output corresponding to a detected temperature when said contact is made with said surface;a drive mechanism to move said sensor between said first and second positions of said first sensor;at least one additional temperature measuring sensor mounted adjacent to said third sensor to move between a first position in which the second sensor is out of contact with said surface of the slab, and a fourth position in which the second sensor contacts said surface at said location, said at least one additional sensor generating an output corresponding to a detected temperature when said contact is made with said surface;a drive mechanism to move said at least one additional sensor between said first and second positions of said at least one additional sensor; anda comparator for comparing said outputs of the first and at least one additional measuring sensors for determining whether or not said detected temperatures of said first and at least one additional sensors at said location differ by less than a predetermined amount, and an indicator for providing a measured temperature indication representing said actual temperature of said surface at said location based on one or more of said outputs, only if said detected temperatures differ by less than said predetermined amount.