红外热像仪测试系统的研制与精度验证

目前红外测试能力的建设主要依靠进1：2，设备价格昂贵、供货周期长、维修困难。自主研发的红外测试系统，采用T型离轴折返式平行光管减小杂散红外辐射的影响，采用多帧平均算法减小随机噪声的影响，采用黑体、靶标轮和平行光管的一体化结构设计减小环境温度对平行光管焦距变化的影响，提高了测试精度。红外测试系统软件采用通用化架构和模块化编程技术，扩展性好。该系统与某美国进口的红外测试系统对比，红外热像仪NETD测试结果的偏差小于20％。测试过程和测试配置可自动化，大大提高了批量测试效率。测试系统成本低，性能与国外同类产品相当，性价比高，具有广阔的市场前景。

Development and Accuracy Certification of Infrared Camera Test System

Now the infrared camera test system in China is mainly imported abroad which is expensive, and it has long stock period. It is also difficult to be maintained. The infrared camera-test system is developed using the T-type abaxial refraction-reflect collimator which reduces the effect of the ambient infrared radiation. The random noise is decreased by multiple-frame averaging. The effect of focal length change of the collimator with ambient temperature change is cut down by the integrative mechanical structure base of the blackbody, the target wheel and the collimator. The test accuracy is improved. The infrared test software has a universal infrastructure and module programming which implies good expansibility. Comparing the test result of the system with that of the infrared camera test system imported from the United States, the NETD difference of the infrared camera is less than 20%. The test procedure and configuration can be automated which improve the test efficiency greatly. It has the lower cost, the high performance of the similar product abroad and high performance-cost ratio with good market value.