一种发动机转速数字测量方法

A digital measuring method of engine rotate speed

介绍了利用EPLD器件实现发动机转速数字化测量的原理及硬件设计,给出了试验结果及误差分析,根据分析结果提出了硬件及软件的电磁兼容性设计措施,提高了系统的抗干扰能力,保证了系统测量准确度,是一种实用的数字测量方法,可应用于其它数字化测试系统中。

*'The digital measure principle of engine rorate speed and the hardware design by means of erasable programmable logic device are introduced.The test result curve and error analysis are given, and according to the analysis result,the electromagnetic compatibility measure of hardware and software for system is showed.The antijamming ability of system can be advanced,and the measure accuracy can be assured.It is an useful digital measure method,and it can be used the other digital measure system.