利用哈根波耶定律测定液体粘度系数与专业测试仪控制原理

Lia Adini, O. Okimustava
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引用次数: 1

摘要

用Hagen-Poiseuille定律和微机实验室法测量了液体物质的粘度系数。粘度是衡量流体在剪切压力下对形状变化的排斥作用。在这项研究中使用了Hagen-Poiseuille定律,因为所用的液体是牛顿液体。连接到液体物质填充型传感器上的毛细管粘度计罐,然后通过长度为(9,8±0,09)×10-2 m、直径为(21620±00096)×10-3 m的毛细管移出。使用Vernier Tecnology型传感器记录质量下降数据,并使用Logger Pro软件进行拟合数据分析。从拟合数据结果中获得的时间特性值,用于使用Hagen-Poiseuille定律计算液体物质的粘度系数。该实验产生的水粘度系数为1063±0113)mPa.s(对应1002mPa.s的理论急性值)、SAE油为10W-30(79,01±8,90)Pa.s(对应76,8Pa.s的理论急性度值),用Hagen-Poiseuille定律和微机实验室法测定了液体粘度系数。粘度是流体在绝对压力下对形状变化的测量。本研究中使用了Hagen-Poiseuille定律,因为所用的液体是牛顿液体。连接到力传感器的毛细管粘度计罐中充满液体,液体将通过长度为(9.8±0.09)×10-2 m、内径为(2.1620±0.0096)×10-3 m的毛细管流出。使用游标技术力传感器记录液体质量降解数据,同时使用Logger Pro软件进行数据拟合分析。从数据拟合中获得的时间特征值用于使用Hagen-Poiseuille定律计算液体粘度系数。通过该实验,获得的水粘度系数值为(1.063±0.113)mPa.s,对应于理论参考值为1.002mPa.s,SAE油10W-30为(79.01±8.90)Pa.s对应于理论基准值76.8Pa.s和甘油为(593.4±56.7)mPa.s.对应于理论参考值612mPa.s。
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Penggunaan Hukum Hagen-Poiseuille dalam Penentuan Koefisien Viskositas Zat Cair dengan Prinsip Kontrol Berat Berbantuan Software Logger Pro
Pengukuran koefisien viskositas zat cair menggunakan hukum Hagen-Poiseuille dengan metode Microcomputer Based Laboratory telah dilakukan. Viskositas merupakan ukuran penolakan fluida terhadap perubahan bentuk di bawah tekanan shear. Hukum Hagen-Poiseuille digunakan dalam penelitian ini karena zat cair yang digunakan merupakan zat cair Newtonian. Tangki viskometer kapiler yang dikaitkan ke sensor gaya diisi zat cair untuk kemudian dialirkan keluar melalui pipa kapiler dengan panjang (9,8±0,09)×10-2 m dan diameter dalam (2,1620±0,0096) ×10-3 m. Data penurunan massa zat cair direkam menggunakan sensor gaya buatan Vernier Tecnology dan analisis fitting data menggunakan software Logger Pro. Nilai karakteristik waktu diperoleh dari hasil fitting data digunakan untuk perhitungan koefisien viskositas zat cair menggunakan hukum Hagen-Poiseuille. Dari percobaan ini diperoleh nilai koefisien viskositas air sebesar (1,063±0,113) mPa.s yang sesuai dengan nilai acuan teori yaitu 1,002 mPa.s, oli SAE 10W-30 sebesar (79,01±8,90) Pa.s sesuai dengan nilai acuan teori 76,8 Pa.s, dan gliserin sebesar (593,4±56,7) mPa.s sesuai dengan nilai acuan teori 612 mPa.s. Measurement of liquid viscosity coefficient using Hagen-Poiseuille law with Microcomputer-Based Laboratory method has been done. Viscosity is the fluid declination measure of form changes under sheer pressure. Hagen-Poiseuille law is used in this study because the liquid used is a Newtonian liquid. Capillary viscometer tanks attached to force sensors are filled with liquid to be streamed out through capillary tubes of length (9.8 ± 0.09) × 10-2 m and the inner diameter (2.1620 ± 0.0096) × 10-3 m. Data on the mass degradation of liquids was recorded using a Vernier Technology force sensor while the data fitting analysis using Logger Pro software. The time characteristic values which obtained from the data fittings are used in the calculation of the liquid viscosity coefficient using Hagen-Poiseuille law. From this experiment, the obtained water viscosity coefficient value is (1.063 ± 0.113) mPa.s corresponds to the reference value of the theory is 1.002 mPa.s, the SAE oil 10W-30 is (79.01 ± 8.90) Pa.s corresponds to the reference value of the theory 76.8 Pa.s, and glycerin is (593.4 ± 56.7) mPa.s corresponds to the reference value of the theory 612 mPa.s.
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