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喷射冲量是电子束辐照靶结构时引起其结构响应的加载条件。本文论述了近年来我们采用电涡流传感器和直接测量特定时间间隔的探头原理，在“闪光二号”装置上，进行电子束辐照平板靶产生喷射冲量的实验研究。使用的靶材为硬铝和玻璃钢，靶上能通量为７０～１００Ｊ／ｃｍ￣２，实测冲量为１５０～２１０Ｐａ·ｓ，实测冲量耦合系数基本稳定在２．０６Ｐａ·ｓ／Ｊ／ｃｍ￣２。
The jet impulse is the loading condition that causes the structure to respond when the electron beam irradiates the target structure. In this paper, we discuss the probe principle of using eddy current sensor and direct measurement of specific time interval in recent years, and experimentally study the jet impulse generated by electron beam irradiating flat target on “Flash II” device. The targets used are duralumin and fiberglass. The target flux is 70 ~ 100J / cm ~ 2, the measured impulse is 150 ~ 210Pa · s, the measured impulse coupling coefficient is basically stable at 2.06Pa · s / J / cm ~ 2.