容积式自选量程油耗仪的设计

Design of Volumetric Type Auto-Selected Range Fuel Consumption Meter

本文主要介绍容积式自选量程油耗仪的设计、工作原理、信号处理、测量精度以及使用硬件逻辑设计 ,实现油耗仪自选量程的功能 (使用 EPROM实现量程直读和小数点浮动处理 )。文中还较为详细的介绍使用 CD40 6 3数值比较器 ,将手表用晶振 32 76 8Hz的脉冲经扣脉冲处理得到 10 0

This paper mainly introduces the design, operational principle, signal processing, measurement precision of volumetric type auto selected range fuel consumption meter, applied hardware logic design and the function of realizing auto selected range (realizing direct range reading and decimal point floating processing with EPROM). It also introduces the method of using CD4063 data comparator and obtaining 100Hz time base signal from watch crystal oscillating 32768Hz through reducing pulses in detail.