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                  测功机也称测功器,主要用于测试发动机的功率,也可作为齿轮箱减速机变速箱的加载设备,用于测试它们的↓传递功率。主要分为『水力测功机、电涡流测功机电力测功机。电力】测功机利用电机测量各种动力机械轴上输出的◤转矩,并结合转速以确定功率的设备。因为□ 被测量的动力机械可能有不同转速,所以用作电力测功机的▲电机必须是可以平滑调速的电机。目前用得较多的是直流测功机、交流测功机和涡流测功机。

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