OPTICAL SENSOR FOR MEASUREMENT OF DO AND PH

The present invention relates to an optical composite sensor device to simultaneously detect dissolved oxygen and pH. The optical composite sensor device to simultaneously detect dissolved oxygen and pH comprises: a housing having an accommodation unit formed on one surface thereof, whose upper port...

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Bibliographische Detailangaben
Hauptverfasser: PARK, KIU HA, JUNG, CHANG HWAN, JUNG, YOON SEOK, KIM, JUN HYONG, LEE, YOUNG BAE, PARK, IN CHUL, HONG, YOUN SIK, RYU, KWANG CHUN
Format: Patent
Sprache:eng ; kor
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Beschreibung
Zusammenfassung:The present invention relates to an optical composite sensor device to simultaneously detect dissolved oxygen and pH. The optical composite sensor device to simultaneously detect dissolved oxygen and pH comprises: a housing having an accommodation unit formed on one surface thereof, whose upper portion is opened to store water; a first sensor film to measure acidity installed in a bottom surface of the accommodation unit of the housing; a second sensor film to measure dissolved oxygen installed in the bottom surface of the accommodation unit of the housing, and separated from the first sensor film to measure acidity; a first light source to emit light of 460-480 nm to the first sensor film; a second light source to emit light of 460-480 nm to the second sensor film; a first light detection unit installed in the housing to detect light having a wavelength of 500-520 nm received through the first sensor film; a second light detection unit installed in the housing to detect light having a wavelength of 600-620 nm received through the second sensor film; and a control unit to control drive of the first and the second light source, calculate acidity of a solution stored in the accommodation unit from the light received from the first light detection unit, and calculate dissolved oxygen of the solution stored in the accommodation unit from the light received from the second light detection unit. 본 발명은 용존산소 및 PH 동시 검출용 광학식 복합센서 장치에 관한 것으로서 담수가 가능하게 상부가 열린 수용부가 일면에 형성된 하우징과, 하우징의 수용부의 바닥면상에 설치된 산도측정용 제1센서막과, 하우징의 상기 수용부의 바닥면상에 상기 산도 측정용 제1센서막과 이격되어 설치된 용존산소 측정용 제2센서막과, 제1센서막에 460 내지 480nm의 광을 출사하는 제1광원부와, 제2센서막에 460 내지 480nm의 광을 출사하는 제2광원부와, 하우징 내에 설치되어 상기 제1센서막을 통해 수신되는 500 내지 520nm 파장의 광을 검출하는 제1광검출부와, 하우징 내에 설치되어 상기 제2센서막을 통해 수신되는 600 내지 620nm 파장의 광을 검출하는 제2광검출부와, 제1광원부와 상기 제2광원부의 구동을 제어하고, 상기 제1광검출부에서 수신된 광으로부터 상기 수용부에 담수된 용액의 산도를 산출하고, 상기 제2광검출부에서 수신된 광으로부터 상기 수용부에 담수된 용액의 용존산소를 산출하는 제어유니트를 구비한다.