一、引言 火花放电点火式汽油发动机、在目前国内外汽车中仍普遍采用。对点火系检测、调整的方法与手段、国内各汽车修理和运输部门多数尚待改进。例如靠测量分电器触点间隙的方法调整触点闭合角度,无法克服凸轮磨损和触点烧蚀带来的误差;测量点火线圈峰值电压除依靠示波器外,尚无简便方法与手段;发动机转速测量,检测仪表化也尚未普遍推广。因此,必 First, the introduction spark ignition spark-type gasoline engine, the current domestic and foreign cars are still commonly used. On the ignition system detection and adjustment methods and means, the domestic auto repair and transportation departments have yet to be improved. For example, by measuring the distributor contact gap method to adjust the contact closure angle can not overcome the cam wear and contact ablation caused by the error; ignition coil peak voltage measurement in addition to rely on the oscilloscope, there is no easy way and means; engine speed measurement , Instrumentation has not yet been widely promoted. Therefore, must