This paper introduces the Handan Co generation Power plant, intermediate pressure rotor's last stage-bladefrequency 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。
2
The portable bladefrequency 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。
3
It usually appears at the RF, blade passage frequency and commutator brush frequency, and their higher harmonics.