| 摘要 |
PROBLEM TO BE SOLVED: To provide a micro current sensor which offers reduced initial failure rate, improved durability, and reduced cost for recovering performance.SOLUTION: A micro current sensor having counter electrodes mounted in an electrolytic material provided in a counter electrode mounting section of a housing allows micro current to flow between a sample electrode, which is defined as a reinforcement rod embedded in a concrete structure, and the counter electrodes to acquire information associated with the reinforcement rod. Since the counter electrodes are detachably mounted in the housing, measurement accuracy is recovered just by replacing the counter electrodes with new ones when the measurement accuracy of the micro current sensor deteriorates. Compared to conventional cases where an entire micro current sensor has to be replaced for the purpose, cost required for recovering accuracy is significantly reduced, which makes the micro current sensor economically more efficient. |
