Patent ID: 6083368
Filing Date: 2000-07-04
Classification: G01N

Abstract:
A probe device vertically partially dipped in running molten metal in a runner for a continuous measurement of oxygen in the running molten metal, the probe device comprising:a vertically extending cylindrical first tube member made of a solid electrolyte material and closed at a lower end thereof;a reference electrode contacting an inside of the first tube member;detection means for detecting a potential difference between a first node connected to the reference electrode and a second node;a vertically extending conductive second tube member connected to the second node, the second tube member coaxially enclosing the first tube member for protection against the running molten metal and having an open bottom region;a vertically elongated first slot formed in a first region of a lower wall part of the second tube member and communicating with the open bottom region;a vertically elongated second slot formed in a second region of the lower wall part opposing the first region with the first tube member therebetween; anda reinforcing plate partially closing the open bottom region and facing the runner.