公开(公告)号：US20180172614A1

公开(公告)日：2018-06-21

申请号：US15313234

申请日：2016-03-30

Applicant: TOSHIKOGYO CO., LTD.

Inventor： Yasuo TAJIRI ,  Mitsuo ISHIKAWA ,  Nobuyuki KAMIYA

IPC: G01N27/22 ,  G01N33/18 ,  G01N17/04 ,  G08B21/18 ,  C02F1/30 ,  C02F1/00

CPC classification number: G01N27/228 ,  C02F1/005 ,  C02F1/30 ,  C02F2103/02 ,  C02F2209/05 ,  C02F2307/14 ,  G01N17/04 ,  G01N27/22 ,  G01N33/18 ,  G08B21/182

Abstract: A determination device for determining an improvement in water quality, capable of determining it in no time, is provided. The device has a first measuring device for measuring by AC terminal electric conductimetry a capacitance of a first capacitor formed between a pair of electrodes immersed in untreated water to be supplied to a water quality-improving apparatus; a second measuring device for measuring by AC terminal electric conductimetry a capacitance of a second capacitor formed between a pair of electrodes immersed in water discharged by the apparatus; and a processor for calculating a ratio (Y/X) of a capacitance Y to a capacitance X wherein the capacitance X is a capacitance of the first capacitor outputted by the first measuring device when an AC frequency is 100 Hz or less, and the capacitance Y is a capacitance of the second capacitor at the same frequency outputted by the second measuring device.