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1·Using resistance strain gage, dynamic pressure sensor, slip ring and tape recorder, the blade vibration strain and exit pressure signals of rotor blades are recorded and then processed.

利用电阻应变片、动态压力传感器、滑环式引电器和磁带记录仪等，录取叶片振动应变和动叶出口压力信号，然后回放磁带，做信号处理。