红外焦平面阵列性能参数测试平台

A Test Bench for Measuring Characteristic Parameters of Infrared Focal Plane Arrays

分析了红外焦平面阵列器件性能参数测试平台的要求,建立了包括红外源及 IRFPA 模块、控制模块和信号放大、采集、处理模块在内的测试系统,可用来进行响应率、探测率、噪声等效功率、噪声等效温差等红外焦平面阵列性能参数的测试。用此参数测试平台来测试 160×120 红外焦平面阵列,经软件分析处理测试数据,证明该测试平台是准确有效的。最后对红外焦平面阵列性能参数测试平台的进一步优化提出了要求。

Requirements of an experimental bench for measuring characteristic parameters of infrared focal plane arrays are analyzed. A testing system is established to measure the parameters of IRFPA, such as responsivity、 detectivity、noise equivalent power and noise equivalent temperature difference, which consists of the module of infrared source and IRFPA, the control module and the module of amplifying, acquiring and processing of the signal. The test bench is accurate and effective through the testing of a 120×160 focal plane array and the analyzing of the data by the processing program. Requirements for the further optimizing of the test bench are mentioned at the end of the article.