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남성기,이선규 한국정밀공학회 2014 International Journal of Precision Engineering and Vol.15 No.11
The effect of Ti adhesion layer on the thermoelectric noise of Microelectromechanical system (MEMS) thermopile sensor isinvestigated in this study. Although the adhesion layer does not affect the thermoelectric voltage through the Seebeck effect, it caninfluence the thermoelectric noise. Two kinds of samples are prepared, both with and without Ti adhesion layers between the contactjunctions of thermopile which are patterned with the 30-array of Au and Cr (Gold-chromium). The Ti layer is used to provide adhesionto the gold film. The surface contact resistance is evaluated by the geometric resistance obtained from a FEM model. Theseexperiments show that the adhesion contact thermopile results in total resistance of 32.64 kΩ and noise amplitude of 313 μV, whereasthe direct contact thermopile results in 24.49 kΩ and 187 μV, respectively. The surface of the contact junction are inspected withscanning electron microscopy(SEM), and atomic force microscopy(AFM) to investigate how the Ti adhesion layer affects theincrement of the surface contact resistance. Furthermore, a heat flux sensor fabricated with the direct contact junctions of thethermopile achieves sensitivity of 62.9 mV/nW and resolution of 1 nW.
계란 자동세척 선별 포장기 (Ⅱ) : Washer & Candler, 2nd year 계란자동 세척 파란선별기 : 2차년도
남성기,최승일,안돈영,신광섭,이환,한복수,이소영,정태규,백고길 大田産業大學校 1997 한밭대학교 논문집 Vol.14 No.1
The poultry automation of the management in the farm and the poultry, the production and the marketing of egges should urgently be needed to overcome the severe competition of the WTO environment. But almost of all large scale machines have been imported from overseas and run in the poultry farm and company concerned. The expected effects and the applications with this farmpacker development are as follows: 1. The specially designed cleaner and dryer were developed. 2. The poultry machine maker could obtain the technical know-how ill the design, and the production of the poultry automation machinery. 3. The poultry producers could supply the hygenic egges in the market and plolong the sales period. 4. The maker could rise up the domestic sales of amounts of about 300 million won and export 0.4 million fellers during the next 3 years..