ELECTROLYTE CONCENTRATION MEASURING DEVICE

• Main Authors: ONO TETSUYOSHI, KISHIOKA JUNJI
• Format: Patent
• Language: English; Japanese
• Published: 19.03.2020
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

To provide an electrolyte concentration measuring device with which it is possible to exactly detect various abnormality symptoms of a device while keeping the device in operation and optimize calibration frequency, as well as improve substantial throughput.SOLUTION: This electrolyte concentration measuring device 10 comprises: an ion selective electrode 101 to which a liquid is supplied; a comparison electrode 102 that serves as a potential reference; a potential measurement unit 171 for acquiring the potential of the ion selective electrode; a concentration calculation unit 172 for calculating the concentration of ions included in the liquid from the potential acquired by the potential measurement unit; a potential monitoring unit 181 for continuously monitoring the potential of the ion selective electrode and generating a potential response curve; a timing signal acquisition unit 182 for acquiring a timing signal relating to the timing of various operations; and a potential response curve analysis unit 183 for detecting the abnormality symptom of a device on the basis of a correlation of the potential response curve and the timing signal.SELECTED DRAWING: Figure 1 【課題】装置を稼働させつつも装置の各種の異常予兆を的確に検知することができ、キャリブレーション頻度を適正化することが可能になると共に、実質的なスループットを向上させる電解質濃度測定装置を提供する。【解決手段】この電解質濃度測定装置１０は、液体を供給されるイオン選択性電極１０１と、電位の基準となる比較電極１０２と、イオン選択性電極の電位を取得する電位測定部１７１と、電位測定部にて取得した電位から液体中に含まれるイオンの濃度を算出する濃度算出部１７２と、イオン選択性電極の電位を継続的に監視して電位応答曲線を生成する電位監視部１８１と、各種動作のタイミングに関するタイミング信号を取得するタイミング信号取得部１８２と、電位応答曲線及びタイミング信号の関連性に基づき装置の異常予兆を検知する電位応答曲線解析部１８３とを備える。【選択図】図１