When AFR closes to stoichiometric value,the maxi- mum values of ionic signal will occur and the time from ignition to peak value will be minimized.

• 通过在定容燃烧弹中对点火电极附近离子信号与过量空气系数的研究,证明了无论是信号峰值还是到达峰值所用时间均与过量空气系数有关。