Apparatus for measuring level of molten metal and method for measuring level of molten metal

摘要

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.

主权项

1. An apparatus for measuring a level of molten metal which measures a level of molten metal in a mold, comprising:
an omnidirectional transmitting antenna; an omnidirectional receiving antenna; and a signal processor, wherein the omnidirectional transmitting antenna and the omnidirectional receiving antenna are installed at a level which is higher than a surface of molten metal in the direction which is parallel to the surface of molten metal such that they are opposite each other, and wherein the apparatus measures the level of molten metal in the mold using an electromagnetic wave emitted into the mold by the omnidirectional transmitting antenna, and wherein the apparatus measures the level of molten metal in the mold by detecting a phase difference between an electromagnetic wave transmitted by the transmitting antenna and an electromagnetic wave received by the receiving antenna.