为了满足基于低温辐射计的115?nm～400?nm波段探测器绝对光谱响应度高精度标定的需求,研制了一种由斩波片、转轴、伺服电机、U型光电开关、降温组件、支架和控制电路等组成的适用于真空环境的光学斩波器,使其在真空低温环境下将微弱的真空紫外-紫外辐射信号调制为频率已知的交变辐射信号,并由锁相放大器进行测量.实验结果表明,该光学斩波器的频率在80?Hz时的稳定性为±0.05?Hz,满足115?nm～400?nm波段探测器绝对光谱响应度标定对斩波器在10?4?Pa的真空环境下的使用要求.

为解决光电跟踪仪跟踪精度测量过程中光束大范围指向的模拟问题,设计了一种大口径、高精度二维快速控制反射镜(fast steering mirror, FSM)。采用微晶材料设计了长、短轴分别为230 mm和160 mm的椭圆形平面反射镜,面形精度优于λ/30。采用音圈电机驱动,通过柔性支撑铰链设计及DSP嵌入式控制系统,运动行程达到±30 mrad,运动控制精度达到5 μrad,运动控制线性度优于±0.20%,角分辨率优于1 μrad。通过软件控制,实现对入射光束圆形轨迹运动、直线轨迹运动、随机运动等形式的运动模拟。最后,对设计指标进行实际测试,可以满足跟踪精度光束动态模拟的测试需求。

研究了脉冲光源有效光强空间分布的Blondel-Rey法,采用复合梯形数值积分实现了瞬时光强的测量,并对高色温光源测量时的光谱失配校正进行了分析.构建了基于双反射镜同步测量原理的脉冲光源有效光强空间分布测量装置,详细分析了全空间分布式旋转平台、脉冲光强探测系统、光谱失配校正用高分辨率光谱仪等重点组成部件.采用高色温调制光源对测量装置进行了校准.最后,对该装置的测量不确定度进行了分析,其扩展不确定度可以达到3.0％.

紫外像增强器作为导弹紫外告警系统、紫外预警系统以及各类紫外辐射监测系统的核心部件，其参数准确与否，直接影响到系统的图像质量。为保证测试数据的准确性，研制紫外像增强器分辨力校准装置，校准装置所用紫外光源是波长范围为200 nm～400 nm的紫外光，相对应的分辨力靶、滤光处、光学成像系统均要求能够透射紫外光，由于紫外波长较短，容易引起散射效应而产生大量的杂散光，设计的分辨力靶采用紫外级石英，紫外光学成像系统采用透射式结构，选用同轴共轭透镜作为紫外光学成像系统。实验和测量不确定度分析验证校准装置的测量不确定度为5%。

紫外像增强器是紫外探测系统的核心器件,是一种电真空成像器件,可将微弱的紫外光图像转换并增强为肉眼可见、亮度可见的光图像,其研制与应用是微光夜视技术的重要发展方向.辐射灵敏度是评价紫外像增强器的重要参数,直接决定了紫外探测系统的性能.介绍了紫外像增强器辐射灵敏度的测量原理,采用紫外辐射光源、光栅单色仪系统、测试暗箱、微电流计、计算机及测量软件组建了辐射灵敏度测量系统.对3只紫外像增强器在260 nm、280 nm及320 nm波长下的辐射灵敏度进行了测量,并分析了其测量不确定度.该测量系统的建立,将辐射灵敏度测量系统的光谱范围拓展至200 nm～400 nm,弥补了现有系统的不足,具有广泛的应用前景.

Gate length of range-gated imaging system as a key characteristics was theoretically and experimentally analyzed in this paper. A frequency doubled 532 nm Nd:YAG laser that the pulse full width at half of maximum (FWHM) was 20 ns and ICCD was used to build up range-gated imaging system, what effects on imaging performance with the change of the bandwidth of the gate signal and gate delay time were studied through a straightforward method, which place white board signs at relevant distances in the field of view. Examples of imagery collected for different range and gate conditions will be presented and discussed with respect to the intensity at the signs in a gated images. When gate signal width is 10 ns, measurement result of the effective temporal gate length is 35 ns.

A spectral radiance measurement device is presented for (230-1700)nm transient radiation source. This device consists of a high temperature black body, two off-axis parabolic mirror, a reference radiation, a grating spectrograph and array CCD detector system. The measure principle model is described. In order to improve the measure precision for UV and NIR nanosecond transient radiation, we adjust the CCD integral periods and adopt the fixed phase high speed signal collection method to enhance the SNR of the device. Simultaneously the spectral distortion of the spectrograph is eliminated using non-parametric kernel regression de-noising algorithm and convolution algorithm. Some experiment results are also presented and discussed in this paper.