This paper introduces the Handan Co generation Power plant, intermediate pressure rotor's last stage-blade frequency reach dangerous resonance area when 200mw units were overhauled.
介绍了邯郸热电厂2 0 0 MW机组大修中，中压转子末级叶片组频率落入危险的共振区。
The portable blade frequency measurement instrument based on DSP is designed next. The DSP-based circuit board is made and the software program for testing hardware circuit board is coded.
论文完成基于DSP芯片的便携式叶片频率测试仪的硬件电路设计和电路板的制作，并完成对电路板的测试。
It usually appears at the RF, blade passage frequency and commutator brush frequency, and their higher harmonics.
它通常出现在射频，叶片通过频率和整流子刷频率，其高次谐波。
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