In order to study the mechanical properties of the fuse striker which is used to impact and push a loadswitch disconnected

a set of pendulum-type impact energy testing system is designed.Furthermore

according to thetheorem of moment of momentum for a system of particles

a new method that is used to study its impactcharacteristics is proposed by moment of momentum.In a moment of arcing and releasing of the fuse striker

the dataabout impact force with time is gathered on high sampling frequency and processed with numerical integration.Thennot only stroke time and distance but also accurate impact energy can be achieved.Through comparing calculatingdata by the traditional experiment method with that by current analysis method

the energy loss from the mechanicaldevice has a little effect on such measurement and analysis method during test procedure

and the accuracy of thequantitative analysis for the process of impact is improved greatly.The experiment and analysis method is simple andquick

and it is not only valuable to guide calculating low energy impact accurately

but also useful to fuse striker’sresearch and development.