By neglecting the value change of the charge to mass ratio caused by the different pesticide solution,the corona charging method was used with water solution replacing pesticide solution.

• 在对不同药液引起的荷质比值的变化不作考虑的情况下,以水溶液代替药液,运用电晕充电法进行荷电喷雾,研究了测量系统对荷质比测量精度的影响。