DISSOLVED OXYGEN SENSOR AND DEVICE FOR MEASURING DISSOLVED OXYGEN

摘要

The present invention relates to a dissolved oxygen sensor and a device for measuring dissolved oxygen using the same, and more specifically, to a dissolved oxygen sensor which shows optimal oxygen permeability and a stable current flow, and a device for measuring dissolved oxygen using the same which can measure dissolved oxygen in a poor condition. The dissolved oxygen sensor comprises: an oxygen permeable membrane which can optimize oxygen permeability by using a polymer material exhibiting an oxygen permeable property and improve use life of the sensor by controlling an oxidation speed of a cathode in the sensor; and a dual blocking device which blocks contact between an anode and internal sediment created by an oxidation reaction of the cathode to compensate a disadvantage of noticeably decreasing a current flow by a reaction with oxygen on the surface of the anode if the sediment accumulates on the surface of the anode. The device for measuring dissolved oxygen using the dissolved oxygen sensor can stably measure dissolved oxygen without distortion by external noise even in a poor condition.