八、皮带和皮带轮 皮带和皮带轮是热成像检测的良好对象。皮带轮和皮带间存在互动，即皮带接触或离开皮带轮时会产生摩擦。另外，皮带本身的不断胀缩也产生内部摩擦。这些过程都能导致热的产生，这是用红外成像机可以看到的。比较几个皮带轮系统的热图形，就可以提供不良运行的 Eight, belts and pulleys Belt and pulley is a good object of thermal imaging test. There is interaction between the pulley and the belt, which means friction occurs when the belt contacts or leaves the pulley. In addition, the continuous expansion and contraction of the belt itself also produces internal friction. These processes can all cause heat generation, which can be seen with an infrared imaging machine. Comparing the heat patterns of several pulley systems can provide poor performance