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자료유형
학술저널
저자정보
홍성호 (동국대학교)
저널정보
한국트라이볼로지학회 Tribology and Lubricants Tribology and Lubricants 제37권 제2호
발행연도
2021.4
수록면
41 - 47 (7page)

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An experimental device was developed for analysis of hydraulic oil characteristics with dielectric constant sensors. Online analysis is the most effective method of the three methods used for analyzing lubricant oils. This is because it can monitor the machine condition effectively using oil sensors in real time without requiring excellent analysis skill and eliminates human errors. Determining the oil quality usually requires complex laboratory equipment for measuring factors such as density, viscosity, base number, acid number, water content, additive, and wear debris. However, the dielectric constant is another indicator of oil quality that can be measured on-site. The dielectric constant is the ratio of the capacitance of a capacitor using that material as a dielectric, compared with a similar capacitor that has a vacuum as its dielectric. The dielectric constant affects the factors such as the base oil, additive, temperature, electric field frequency, water content, and contaminants. In this study, the tendency of the dielectric constant is investigated with a variation of temperature, water content, and dust weight. The experimental device can control working temperature and mix the contaminants with oil. A machine condition monitoring program developed to analyze hydraulic oil is described. This program provides graph and digital values with variation of time. Moreover, it includes an alarm system for when the oil condition is bad.

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Abstract
1. 서론
2. 본론
3. 실험결과 및 고찰
4. 결론
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