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介绍测频式转速测量的基本原理,分析了欲获得瞬时转速采用倍频技术的必要性和可能性,并分别介绍了传感器倍频和相环倍频各自特点和应用.
This paper introduces the basic principle of frequency measurement speed measurement, analyzes the necessity and possibility of using frequency doubling technology for obtaining instantaneous speed, and introduces respectively the characteristics and applications of frequency doubling and phase - frequency multiplication.