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PtOEP/PS 박막을 이용한 용존 산소 농도장의 정량적 가시화
송대헌(Dae hun Song),김현동(Hyun Dong Kim),김경천(Kyung Chun Kim) 한국가시화정보학회 2010 한국가시화정보학회 학술발표대회 논문집 Vol.2010 No.11
It is highly powerful to get the dissolved oxygen concentration field in water for a variety of purposes such as biological, industrial, environmental monitoring and medical application. Application of PSP (Pressure Sensitive Paint) which is sensitive to oxygen concentration has been carried out in PSP measurement to measure dissolved oxygen concentration field on sub-milli scale. Dissolved oxygen concentration field around oblique jet are obtained using PtOEP/PS film and intensity based method.
마이크로 유동에서 PtOEP/PS 박막을 이용한 용존 산소 농도장의 정량적 가시화
송대헌(Dae Hun Song),김현동(Hyun Dong Kim),김경천(Kyung Chun Kim) 한국가시화정보학회 2011 한국가시화정보학회지 Vol.9 No.1
It is highly needed to measure the dissolved oxygen (DO) concentration field in water for a variety of purposes such as biological, industrial, environmental monitoring and medical application. Application of PSP (Pressure Sensitive Paint) which is sensitive to oxygen concentration has been carried out to measure DO concentration field using PtOEP/PS film and intensity based method under the UV-LEDs illumination. A micro round water jet having 100% of DO was obliquely impinged on to a PtOEP/PS film coated plate placed in a 0% of DO water container. DO concentration fields on the impinging plate were quantitatively visualized with a 2.94 ㎛ of spatial resolution. Through pixel-by-pixel calibration, uncertainty of each pixel by different sensitivity, different dye concentration and non-uniformity of illumination was removed. It is demonstrated that the high DO concentration region was coincided with the impingement area. The DO concentration gradient due to DO diffusion was affected by Reynolds number.