The paper introduces an advanced hydraulic pump/motortester for mine, combining frequency-modulated control with power recovery techniques, and an engineering application example is given.
介绍采用变频调速和功率回收加载技术的新型矿用液压泵和液压马达试验系统，并有应用实例。
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The control system of WX-042 grinder consisted of 8031 single chip computer, stepping motor servo device and grating displacement tester, can automatically compensate the wear of the wheel.