A new method for measuring the 3D motion of balls in angular contact ball bearings fitted with a magnetized ball is proposed, in which Hall Sensor is fixed to its outer ring and cage side face.
提出了通过在装有一个磁化钢球的轴承外圈及保持架侧面配置霍尔传感器，测量钢球三维运动的新方法，阐述了该测试方法的基本原理；
The softening point of these materials was determined by ring and ball method. The gardner method was used to evaluate the colorimetry and grade. The materials were characterized in detail by IR.
通过环球法和加特纳法分别测定这类物质的软化点及评定其色价、等级，并测定了这类物质的红外光谱、紫外光谱、 荧光光谱和差热-热重变化。
The softening point of these materials was determined by ring and ball method. The gardner method was used to evaluate the colorimetry and grade. The materials were characterized in detail by IR.
通过环球法和加特纳法分别测定这类物质的软化点及评定其色价、等级，并测定了这类物质的红外光谱、紫外光谱、 荧光光谱和差热-热重变化。
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