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US 4,290,067 AGranted
Radiant energy profilometer
AssigneePaul Wurth S.A.
InventorsEdouard Legille, Victor Kremer
Life of this patent
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Abstract
A non-contacting surface contour measurement device includes movable member which can selectively be actuated to form a hermetic enclosure about a transmit and/or receive antenna. The measurement device, when employed in a blast furnace, need be exposed to the furnace environment only during measuring modes which constitute a small portion of the furnace operating cycle.
Claims23
In apparatus for measuring the contour of a surface from a location remote from the surface, the improvement comprising:
- means for transmitting radiant energy to the surface of interest and receiving the transmitted energy reflected from the surface;
- support means for said transmitting and receiving means;
- and
- chamber defining means movable relative to said support means between a first position commensurate with measurement of the surface and a second position wherein the transmitting and receiving means is hermetically isolated from the surface within a chamber.
1 more element
Dependencies are inferred from the claim text.