Apparatus for measuring level of molten metal and method for measuring level of molten metal
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United States of America Patent
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Apr 26, 2016
Grant Date -
Apr 3, 2014
app pub date -
Dec 9, 2013
filing date -
Jun 24, 2011
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Abstract
Provided is an apparatus for measuring a level of molten metal which has a simple structure and is highly robust against a change in level at a local portion of the surface of molten metal. The apparatus for measuring a level of molten metal according to a first aspect of the present invention is an apparatus which measures a level of molten metal in a mold. The apparatus includes an omnidirectional transmitting antenna; an omnidirectional receiving antenna; and a signal processor. The apparatus measures the level of molten metal in the mold using electromagnetic wave in ultra-high frequency range emitted into the mold by the omnidirectional transmitting antenna.
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