【摘要】 利用热式空气流量传感器直接测量空气质量流量的特点,设计了一种应用于测量内燃机进气系统进气量的热线式空气流量传感器。通过对传感器输出信号进行温度补偿、放大及线性化处理,其输出电压与质量流量近似呈线性关系。试验结果表明:热线式空气流量传感器应用于汽车电喷系统中,可以为发动机提供准确的进气质量流量。更多还原

【Abstract】 The characteristic of which thermal air flow sensor can directly measure air mass flow is used,a hot-wire air flow sensor which can be applied to intake system for an internal combustion engine is designed.The air flow sensor output signal is compensated,magnified and linearized in the range of temperature,relation of the output voltage and mass flow is approximately linearity.The experiment results show hot-wire air flow sensor applied to electronic jet system of motor,can provide accurate information about the air mass flow for the engine.更多还原