摘要
设计了一种高精度汽油油号智能检测仪,信号采集通过电容传感器和C/F变换器完成,利用温度传感器DS18B20进行温度补偿。采用AT89C51为主控制器,在数据处理时利用多元线性回归得到汽油油号的拟合表达式。系统实现电路简单、功耗低、精度高,适合在家用汽车和远距离测量设备中使用。
An intelligent and high-accuracy instrument for gas value measurement is designed in this paper.The signal is acquired through the capacitance sensor and C/F converter.The temperature sensor DS18B20 is used for temperature compensation.AT89C51 is used as a host controller.Fitting expression of gasoline label is obtained by using multiple linear regression in the data processing.System has the advantage of simple circuit,low power consumption and high precision.So it is suitable for using in the family car and distance measuring equipment
出处
《微型机与应用》
2010年第21期88-90,共3页
Microcomputer & Its Applications
关键词
辛烷值
C/F转换器
多元线性回归
octane number
C/F converter
multiple linear regression
