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US 7,029,172 B2Granted
Temperature profile determination
AssigneeIsis Innovation Limited
InventorsPaul Jones, Stephen Richard Duncan, Ronald Daniel
Life of this patent
Estimating the term…
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AssigneeIsis Innovation Limited
InventorsPaul Jones, Stephen Richard Duncan, Ronald Daniel
Estimating the term…
Apparatus for determining the temperature profile of the surface being sprayed or otherwise treated, the apparatus comprising four electric arc spray guns (1) spraying molten steel. The guns (1) are connected to a six-axis industrial robot (2) which is adapted to move them over the surface of the ceramic substrate (3). The metal deposited by the spray builds up a metal shell referred to as the sprayform. The temperature profile of the sprayform surface (3) is recorded periodically by a thermal imaging camera (4) positioned directly above the surface (3). The apparatus includes a pruning filter for receiving each pixel of an image captured by the camera (4) and for applying at least a lower temperature limit to it so as to reject or disregard any pixels determined to have a temperature less than the lower temperature limit.
A method of estimating, predicting or determining the temperature profile of a surface being sprayed or otherwise treated, the method comprising the steps of capturing one or more thermal images of said surface, said surface being sprayed or otherwise treated by means of one or more devices located such that they obscure said thermal image(s) at least at some time during a spraying or treatment process, determining the temperature profile of portions of said surface in a thermal image not obscured by said one or more devices and estimating or predicting the temperature profile of portion(s) of said surface in a thermal image obscured by said one or more devices, so as to estimate, predict or determine the temperature profile of substantially the whole of said surface.
Dependencies are inferred from the claim text.