| 摘要 |
PROBLEM TO BE SOLVED: To provide a new instrument for measuring metal sludge in glass melting furnace that makes it possible to exactly grasp whether the metal sludge deposits or not and its quantity deposited. SOLUTION: A pair of electrodes 12 are inserted into the body 11 of a tubular instrument which is to be inserted into the body 2 of the glass melting furnace 1 and are insulated and supported in the body 11 of the instrument with an insulating material 13, the side face of the insertion tip of the body 11 of the instrument is opened, and the tips of the electrodes 12 are exposedly located in the opening part 14. Since the value of the resistance between the electrodes 12 varies if metal sludge exists, consequently, the existence or absen of the metal sludge and the condition of its deposition can be grasped exactly by detecting the value of the resistance.
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