论文标题
使用快速相机
A high precision falling-ball viscometer using a fast camera
论文作者
论文摘要
本文描述了一种简单且廉价的方法，即使用球下降技术和廉价的点测量牛顿流体的粘度，每秒摄像机射击约1000帧。我们成功地测量了甘油和甘油 - 水混合物的粘度，高精度。我们使用了三个不同尺寸的直径铜球0.8毫米，1.59毫米和2.38毫米，以检查不同浓度的甘油 - 水混合液溶液的准确性，范围从50％到100％（纯甘油）。我们的测量与其他标准技术进行的测量非常吻合。我们在本手稿中提出的简单且廉价的技术和物理学也可以用来创建简单的粘度测量设置，即使在本科实验室和高中教学实验室，也可以学习复杂的流体力学。
This paper describes a simple and inexpensive method of measuring viscosity of a Newtonian fluid using the ball drop technique and an inexpensive point and shoot ~1000 frame per second camera. We successfully measured the viscosity of glycerol and glycerol-water mixture with high precision. We used three different size copper balls of diameters 0.8 mm, 1.59 mm, and 2.38 mm to check the accuracy of the measured viscosity in different concentrations of glycerol-water mixer solutions ranging from 50% to 100% (pure glycerol). Our measurements are in excellent agreement with the measurements conducted by other standard techniques. The simple and inexpensive techniques and physics we present in this manuscript can be employed to create a simple viscosity measurement setup for learning about complex fluid mechanics even at the undergraduate laboratory and high school teaching laboratory.
