Title:
CONDUCTIVITY METER, METHOD FOR MEASURING CONDUCTIVITY AND INSTRUMENT FOR CONTINUOUS MEASUREMENT OF OXYGEN CONCENTRATION
Document Type and Number:
Japanese Patent JP3368868
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an instrument capable of continuously controlling the hydrochloric acid concentration of a final pickling tank among plural pickling tanks constituting continuous pickling equipment.
SOLUTION: This instrument 1 for continuous measurement of oxygen concentration is constituted by combining a main body 3 which has a flow passage 2 to continuously pass a pickling liquid housed in the pickling tank to one direction, a densitometer 4 which is installed in this main body 3 and continuously measures the pickling liquid flowing in the flow passage 2, a thermometer 5, a conductivity meter 6 and an arithmetic unit 14 which computes the oxygen concentration of the pickling liquid in accordance with the results of the measurement. The conductivity meter 6 has a detecting part in which the acid liquid to be measured passes. The inside surface and base surface of the detecting part are formed toward a direction intersecting with both of a horizontal direction and a perpendicular direction.
Inventors:
Toshihiko Nonaka
Mr. Ebane
Mr. Ebane
Application Number:
JP12041799A
Publication Date:
January 20, 2003
Filing Date:
April 27, 1999
Export Citation:
Assignee:
SUMITOMO METAL INDUSTRIES,LTD.
International Classes:
C23G1/08; C23G3/02; (IPC1-7): C23G1/08; C23G3/02
Domestic Patent References:
| JP941158A |
Attorney, Agent or Firm:
Shoichi Hirose