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首页> 外文会议>Infrared Technology and Applications XXXIII pt.2; Proceedings of SPIE-The International Society for Optical Engineering; vol.6542 pt.2 >Uncooled microbolometer trade off or new figure of merit for uncooled imager
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Uncooled microbolometer trade off or new figure of merit for uncooled imager

机译：非冷却微测辐射热器的折衷或非冷却成像仪的新品质因数

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摘要

NETD is not the sole parameter to characterize microbolometer array and other parameters are as important as this one, indeed when a products comparison is done, NETD values but not, systematically, technology data (such as thermal time constant...) and typical imager parameters can be used. However, as NETD is strongly dependant on the thermal time constant, it's important to compare microbolometer in the same conditions to evaluate advantages and drawbacks. This paper deals with the important parameters to compare microbolometer devices and propose a figure of merit to take into account thermal sensitivity as well as imager characterization: such as MTF, fill factor and thermal time constant, which are often forgotten in the data products; for example, a die with a NETD around l0mK and thermal time constant around 40ms will not be compliant with a 100 Hz frame rate and has to be compared with a 40mK, ι=10ms component. The important point is to compare the right criteria and to make the best choice for the application. An example will be also presented to see how to choose an uncooled array for a given application.
机译：NETD不是表征微辐射热计阵列的唯一参数，其他参数与此参数同等重要，实际上，在完成产品比较后，NETD值而不是系统地，技术数据（例如热时间常数...）和典型的成像仪，可以使用参数。但是，由于NETD强烈依赖于热时间常数，因此在相同条件下比较微辐射热计非常重要，以评估其优缺点。本文讨论了比较微辐射热测量仪设备的重要参数，并提出了一个考虑热敏性和成像器特性的品质因数：例如MTF，填充因子和热时间常数，这些经常在数据产品中被遗忘。例如，具有约10mK的NETD和约40ms的热时间常数的管芯将不符合100Hz帧速率，并且必须与40mK，1 ＝ 10ms的分量进行比较。重要的是比较正确的标准，并为应用程序做出最佳选择。还将提供一个示例，以查看如何为给定的应用选择未冷却的阵列。

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