Ultrasonic batch sensing apparatus for glass-melting furnaces
AssigneeOwens-Corning Fiberglass Corporation
InventorSheldon A. Canfield
Life of this patent
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Abstract
An apparatus for sensing the level of the glass batch in a glass-melting furnace. The apparatus comprises means for transmitting an ultrasonic signal toward the surface of the batch in the furnace, means for receiving the ultrasonic signal after it has been reflected by the surface of the batch, and means for distrubing a thermal inversion layer in the path of the ultrasonic signal in the gaseous medium between the means for transmitting and the surface of the batch. The means for transmitting, means for receiving and means for disturbing are positioned above the glass batch.
Claims10
An apparatus for sensing the level of the glass batch in a glass-melting furnace, said apparatus comprising:
- a. means for transmitting an ultrasonic signal toward the surface of said batch in said furnace;
- b. means for receiving said ultrasonic signal after said signal has been reflected by said surface;
- and
- c. means for disturbing a thermal inversion layer in the path of said wave in the gaseous medium between said means for transmitting and said surface, said means for transmitting, said means for receiving and said means for disturbing being positioned above said batch.
Dependencies are inferred from the claim text.