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粘度是流体的物理性质,在物理、物理化学和专业实验中经常要测定流体的粘度。目前广泛采用操作简便的旋转粘度计,例如RV型、NDJ-型、NDJ-2型和NXS—11型等。在使用过程中,为了获得准确的实验数据,按“旋转粘度计检定规程”(下称“规程”)规定,每隔两年必须用标准液检定。同时,由于流体的性质不同(如牛顿性、塑性、假塑性和胀塑时性、时变性和粘弹性等等),测定粘度时对仪器的要求也不同。针对这些问题,我们对装置进行了检定和改装,不仅使测得的数据正确,并扩大仪器的应用,提高了实验质量。
Viscosity is the physical property of a fluid. It is often the case that the viscosity of a fluid is measured in physics, physics and chemistry, and in specialized experiments. Currently widely used rotary viscometer, such as RV type, NDJ-type, NDJ-2 and NXS-11 and so on. In use, in order to obtain accurate experimental data, according to “Rotary Viscometer test procedures” (hereinafter referred to as the “rules”), every two years must use the standard test. At the same time, due to the different nature of the fluid (such as Newtonian, ductile, pseudoplastic and intumescent properties, time-dependent and viscoelastic, etc.), the viscosity of the instrument when the requirements are different. In response to these problems, we test and modify the device, not only the measured data is correct, and expand the application of the instrument, improve the quality of the experiment.