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EVALUATION OF A COTS MICROBOLOMETERS FPA TO SPACE ENVIRONMENTS

机译:FPA微型荧光计FPA对空间环境的评估

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Microbolometers Focal Plane Arrays (FPA) are uncooled infrared arrays suitable for the detection in the 8-14μm spectral range. Standard products show attractive performances and are available at low cost. They can be consistently used for space missions on microsatellites. A microbolometers focal plane array (a 640x480 microbolometer array with a pitch of 25 μrn) is foreseen to be used on the Mistigri mission proposed by CNES (French National Space Agency). The scientific objectives of the mission are the monitoring of water conditions of agricultural crops and natural vegetation. These objectives can be reached thanks to observations in the thermal infrared wavelength. Mistigri is now at an early stage of development (preliminary definition study). CNES has started a technological evaluation on the microbolometers array as a risk mitigation action. This technological evaluation plan includes radiation tests (ionizing dose, displacement damage, and heavy ions), lifetest, thermal cycling and vibrations and shocks. At the same time we have addressed fine performances of the microbolometers arrays in order to optimize instrument design and performances.
机译:Microbolometers焦平面阵列(FPA)是非冷却的红外阵列,适合在8-14μm光谱范围内进行检测。标准产品具有吸引人的性能,并且价格低廉。它们可以始终用于微卫星的太空飞行。预计将在CNES(法国国家航天局)提出的Mistigri任务中使用微测辐射热计焦平面阵列(间距为25μm的640x480测微辐射热计阵列)。特派团的科学目标是监测农作物和天然植被的水状况。通过观察热红外波长可以实现这些目标。 Mistigri现在处于开发的早期阶段(初步定义研究)。 CNES已开始对微辐射热计阵列进行技术评估,以降低风险。该技术评估计划包括辐射测试(电离剂量,位移损伤和重离子),寿命测试,热循环以及振动和冲击。同时,我们已经解决了微辐射热计阵列的优良性能,以优化仪器设计和性能。

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