本文针对国产中、大功率柴油机(船舶主、辅机)长期沿用测速发电机装置所存在的问题,提出一种基于电子电路原理实现的新颖转速监测系统。通过实验装置、样机和实船验证试验,证明本系统具有测速精度高、性能稳定、结构简单、工作可靠等优点,能满足柴油机对转速监测方面的多项要求。 In this paper, aiming at the existing problems of long-term tachogenerator devices for medium- and high-power diesel engines (ship’s main engine and auxiliary engine), a novel speed monitoring system based on electronic circuit principle is proposed. Through the experimental device, prototype and real ship verification test, the system proves that the system has the advantages of high speed accuracy, stable performance, simple structure and reliable work, which can meet the requirements of diesel engine for speed monitoring.