里用单片机、2个计数器以及D触发器对被测信号脉冲与标准信号脉冲利用单片机、2个计数器以及D触发器对被测信号脉冲与标准信号脉冲,同时计数，实现频率测量功能。在保证产品质量和提高产品功能的同时降低制作成本, 对产品进行简化设计。-Lane used microcontroller, two counters, as well as D flip-flop on the measured signal pulse with the standard signal pulses using single-chip, two counters, as well as D flip-flop on the measured signal pulse with the standard signal pulse, at the same time counting, frequency measurement realize function. In ensuring product quality and enhance the functions of the product while reducing production costs, simplify the design of products.