Fitting the sensitivity response curve for mechanism initiated pyrotechnics

To research the fitting of sensitivity response curve for mechanism initiated pyrotechnics, the response data which came from the same type but different groups of pyrotechnics were tested and summarized by virtue of the testing theory of the same ensemble. Based on the data, probability unit method was used to estimate the type of response curve roughly. Furthermore, the maximum likelihood estimation of parameters and X²- test for model were discussed. The fitting method was applied to ten kinds of mechanical initiated pyrotechnics. The ln-logistic distribution is the most common type of distributions for mechanical initiated pyrotechnics.