| 摘要 |
<P>PROBLEM TO BE SOLVED: To measure stably an oxidation-reduction potential of liquid to be measured. <P>SOLUTION: This oxidation-reduction potential measuring device 100 has a measuring vessel 101 for storing reduction water 115 which is a measuring object of the oxidation-reduction potential; a working electrode 105 and a reference electrode 107 arranged in contact with the reduction water 115 in the measuring vessel 101, for measuring the oxidation-reduction potential of the reduction water 115; a communication port of a liquid supply tube 109 provided near the bottom part of the measuring vessel 101, for supplying the reduction water 115 to the measuring vessel 101; and a communication port of a drain tube 111 provided near the bottom part of the measuring vessel 101, for discharging the reduction water 115 from the measuring vessel 101. A communication port of an overflow tube 113 for overflowing and discharging excessive reduction water 115 in the measuring vessel 101 is provided on a furthermore upper part of the communication port of the liquid supply tube 109. The working electrode 105 and the reference electrode 107 are arranged on the furthermore lower side than the communication port of the overflow tube 113. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
