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分析了影响条纹相机最小可探测能量密度的主要因素，通过采用两级增强器级联的方法降低了条纹最小可探测能量密度。利用超短激光脉冲经过标准具后形成一个能量等比衰减的脉冲序列，对ＺＰＴ－３Ｋ紫外／可见皮秒条纹相机的最小可探测能量密度进行了测量。测量表明：相机最小可探测能量密度在可见波段（５３２ｎｍ）达１×１０－１３Ｊ／ｃｍ２。
The main factors influencing the minimum detectable energy density of streak camera are analyzed. The minimum detectable energy density of streaks is reduced by using two-stage enhancer cascade. The minimum detectable energy density of the ZPT-3K UV / visible picosecond stripe camera was measured by using an ultrashort laser pulse passing through the etalon to form a series of energy attenuated pulse sequences. Measurements show that the minimum detectable energy density of the camera reaches 1 × 10-13 J / cm 2 in the visible band (532 nm).