Department News

PROF. LEE JUNGCHUL PAPER WAS PUBLISHED IN SENSORS AND ACTUATORS, B: CHEMICAL IN ONLINE

관리자 22.05.2019

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Prof. Lee Jungchul team(Manufacturing and Instrumentation Laboratory ) and Prof. Thomas Thundat of the University of New York, Department of Chemical and Materials Engineering at the University of Buffalo in the United States jointly developed a mechanical resonator-based humidity sensor was developed for the first time. A hair hygrometer, first demonstrated by Swiss physicist and geologist Horace Bénédict de Saussure in 1783, exploited the ability of hair to shrink/expand with changes in humidity. However, this traditional hair hygrometer has the disadvantage of a slow reaction rate. In this study, a mechanical resonator was used as a short hair part, and a fast sensor was created to cause resonance frequency change according to change of tensile force and inertial mass caused by the change of hair length due to humidity change. Because it uses abandoned hair, it is more meaningful because it is environment-friendly technology and it is highly likely to develop into an application that monitors not only humidity but also specific diseases or health conditions. This paper was published in online the name of “Resonant hair humidity sensors for disposable applications: Revisit the hair hygrometer” at Sensors and Actuators, B: Chemical (SCI IF: 5.667)