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半硬支承动平衡机的电测系统,在结构上与软支承动平衡机的电测系统类似。然而半硬支承动平衡机的信噪比比软支承动平衡机的信噪比低得多,本系统采用锁相环提供高质量的参考方波,采用前置自动跟踪带通滤波器提高不平衡量信号的信噪比,采用全波相敏差压低通滤波器提高相关检测的精度。实践表明,设计上的这些努力,使得本系统的各项技术指标均达到或超过原先的设想。
Semi-hard support dynamic balancing machine electrical measuring system, the structure and soft-supported dynamic balancing machine electrical measuring system similar. However, the signal to noise ratio of semi-hard bearing dynamic balancing machine is much lower than the signal-to-noise ratio of soft supporting dynamic balancing machine. The system uses PLL to provide high quality reference square wave and the front automatic tracking band-pass filter to improve unevenness Measure the signal to noise ratio, the use of full-phase phase-sensitive differential pressure low-pass filter to improve the accuracy of related tests. Practice shows that the design of these efforts, making the system of technical indicators have reached or exceeded the original idea.