思考题与习题················································································································ 228 第七章 控制电机············································································································· 229 **节 概 述··············································································································· 229 第二节 伺服电动机······································································································ 229 第三节 测速发电机······································································································ 235 第四节 步进电动机······································································································ 238 第五节 自整角机·········································································································· 246 本章小结······················································································································ 249 思考题与习题················································································································ 250 第八章 电动机的选择······································································································· 251 **节 电动机的一般选择····························································································· 251 第二节 电动机的发热与温升························································································· 254 第三节 电动机额定功率的选择······················································································ 257 本章小结······················································································································ 264 思考题与习题················································································································ 265 第九章 电机实训············································································································· 266 技能训练一 小型直流电机检修工艺················································································ 268 技能训练二 小型交流电动机检修工艺············································································ 271 参考文献·························································································································· 274

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