| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an immersion measuring probe having improved accuracy and reliability of measurement. <P>SOLUTION: A sensor carrier 4 installed in a longitudinal direction perforation 3 at the center of a measuring head 1 has under a protection cap 7, one or more heat elements and/or electric sensors for determining the gas content in a molten metal in analysis using this immersion measuring probe, and a ring 9 made of molding sand is arranged on a peripheral position of the sensor carrier 4 on the immersion end. During the time the measuring head 1 is allowed to penetrate a slug layer on the molten metal surface, or when the measuring head 1 is immersed into the molten metal, gas in holes in the molding sand is suddenly discharged from the ring 9 by sudden volume increase caused by being suddenly heated by the molten metal temperature, to thereby strip off slug adhering to the sensor carrier 4 or the protection cap 7. <P>COPYRIGHT: (C)2007,JPO&INPIT |
