Instantaneous slag thickness measuring device

Details Instantaneous slag thickness measuring device Instantaneous slag thickness measuring device

1996-08-30

1998-07-14

Snow, Walter E.

Electricity: measuring and testing

Magnetic

With means to create magnetic field to test material

324226, 324234, G01B 706, G01R 3312

Patent

active

057810087

ABSTRACT:
An apparatus for measuring the thickness of a slag layer on a metal melt in a metallurgical vessel comprises a first inductive eddy current sensor which indicates the distance of the apparatus from the metal melt as it is moved toward the melt. A second sensor detects when the apparatus reaches a predetermined distance relative to or contacts the slag layer and triggers the inductive eddy-current sensor when such distance is attained. The sensors are arranged in predetermined spatial relation and the thickness of the slag layer is determined by an evaluation device which analyzes the received signals. The apparatus permits measurement of the thickness of the slay layer without the need of additional equipment (e.g. mechanical lance movement or distance measurement).

REFERENCES:
patent: 5523685 (1996-06-01), Kasai et al.

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