KAIST, 스마트폰으로 공기오염 측정 기술 개발 Fine dust measurements anytime, anywhere with your smartphone
ultra wide array of manufactured nanomaterials at the same time in the micro- region
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케이콘텐츠
스마트폰만 있으면 오존이나 자동차 배기가스, 가스누출 사고 등 각종 공기오염 물질을 언제어디서나 측정할 수 있게 될 전망이다. KAIST 기계공학과 박인규 교수팀은 ‘초소형·초절전 공기오염 측정 센서 원천기술’ 개발에 성공했다고 24일 밝혔다.  박인규 교수 공기오염측정센서는 이미 개발돼 있지만 여러 종류의 가스를 동시에 측정하기 어렵고, 크기도 커 휴대하기도 불편했다. 박 교수팀은 수백 μm(마이크로미터=100만분의 1m) 크기의 초소형 가열장치를 개발한 다음, 공기오염 측정 센서로 흔히 사용되는 ‘반도체성 금속산화물’을 가열할 수 있도록 만들었다. 이 기술을 이용해 머리카락 굵기보다 작은 금속을 가열해 기체 흐름을 조절하면 스마트폰 등에 내장해도 표가 나지 않을 만큼 작은 초소형 가스측정 센서를 만들 수 있다. 여러 종류의 금속산화물를 나란히 배열하면 다양한 기체를 정밀 분석하는 것도 가능하다. 연구진은 이 기술이 도시 공기오염 측정, 산업현장용 휴대용 가스센서 등의 분야에 쉽게 이용될 것으로 보고 있다. 박 교수는 “휴대용 공기오염 센서 뿐 아니라 실험실용 바이오센서 등의 다양한 융합기술 발전에 기여할 수 있을 것”이라고 말했다. 이 연구 결과는 세계적 과학저널 ‘네이처’의 자매지인 ‘사이언티픽 리포트’ 1월 30일자 온라인판에 실렸다. 동아사이언스 대전=전승민 기자 enhanced@donga.com |
Fine dust measurements anytime, anywhere with your smartphone
Posted by turtleteam KAIST has 24 days of Mechanical Engineering, Park In-kyu ’s team smartphone with mobile devices such as compact as possible , ultra-low power source of air pollution in the development of sensor technology, today announced successful. Scientific research results were published in a report dated January 30 online edition of Nature jamaeji various air pollutants increases and the interest in the health of the people As the need for increased measurement technology on the surrounding air pollution level of the individual , but larger conventional air pollution sensor is greater the power consumption and volume . Further lower the accuracy in measuring a number of toxic gases at the same time . these points remains the challenge is resolved by using the semiconductor manufacturing process has been developed in the existing not easy . Park In-kyu ’s team has developed a microfluidic device with very small heating by using a micrometer only be locally heated to a temperature minimum area section control technique , that quickly and easily integrated technology several types of the functional nanomaterial in a single electronic chip of several hundred micrometer width said .representatively to prepare a sensor material in the semiconducting metal oxide -based nanomaterial of the electronic chip that is used for measuring air pollution . Knowledge of night ’s team also nanomaterials for sensors of many kinds can be simultaneously produced in small quantities can create a compact , ultra-low power gas sensors to be mounted on a mobile device. This technique is a high-density electronic circuits, biosensors , power generation element and the like , and can be applied to various fields , particularly expected to bring a reduction in size and power consumption in a portable gas sensor innovation in the field who have difficulty reduced . Professor Park said:” Air pollution sensors , as well as biosensors for mobile devices , electronic devices , will be able to contribute to the development of various fusion techniques such as display” . baksuhyeong journalist (psooh@zdnet.co.kr) http://10korea.com/fine-dust-measurements-anytime-anywhere-with-your-smartphone/ |
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