Expanded applications for high performance VOx microbolometer FPAs
Expanded applications for high performance VOx microbolometer FPAs
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高性能 VOx 微测辐射热计 FPA 的扩展应用
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
T. Kostrzewa
中科院分区：
文献类型：
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作者：
D. Murphy;M. Ray;A. Kennedy;J. Wyles;C. Hewitt;R. Wyles;E. Gordon;T. Sessler;S. Baur;D. Van Lue;S. Anderson;R. Chin;H. Gonzalez;C. Le Pere;S. Ton;T. Kostrzewa
RVS正在生产具有25 μm像素的高质量微测辐射热计FPA。我们开发了320 x 240和640 x 480阵列格式的格式。这些FPA的灵敏度与50 μm像素的微测辐射热计FPA相当，这些FPA的最佳测量NETD值现在<25 mK，具有f/1孔径，并以30 Hz帧速率工作。在大多数FPA上，像素可操作性大于99.9%，并且未校正的响应度不均匀性小于3%（sigma/平均值）。这些25 μm微测辐射热计探测器还具有约10 msec的相对较快的热时间常数。这些阵列已经产生了优异的图像质量，并且目前被部署在各种系统中。我们将报告我们最新的性能数据和红外捕获飞行测试图像。我们还将展示25μm阵列的数据，这些阵列设计用于更快的时间常数（5 msec），同时保持高性能。RVS还在开发320 x 240 50μm中波响应FPA。我们将审查与此阵列的中波红外灵敏度的改善，并提供红外图像。RVS正在开发一种640 x 480 25μm非制冷FPA，用于使用双波段组件的反地雷探测应用，该组件设计为在Restrahlen和热光谱波段都敏感。我们将提供这些阵列的红外图像数据。RVS在640 × 512阵列的开发方面取得了重大突破，其单元尺寸为20 μm × 20 μm，性能接近25μm阵列。该阵列的成功开发是实现百万像素格式的第一步。该FPA被设计为最终实现接近温度波动限制NETD（<20 mK，f/1，30 Hz）的性能。我们将展示这些阵列的最新性能和图像，目前正在<45 mK，f/1，30 Hz下进行测量。
RVS is producing high-quality microbolometer FPAs with 25 μm pixels. We have developed formats in both 320 x 240 and 640 x 480 array formats. These FPAs have demonstrated sensitivities that are comparable to microbolometer FPAs with 50 μm pixels with the best measured NETD value for these FPAs now <25mK with an f/1 aperture and operating at 30 Hz frame rates. Pixel operability is greater than 99.9% on most FPAs, and uncorrected responsivity nonuniformity is less than 3% (sigma/mean). These 25 μm microbolometer detectors also have a relatively fast thermal time constant of approximately 10 msec. These arrays have produced excellent image quality, and are currently fielded in a variety of systems. We will report on our latest performance data and IR captive flight test imagery. We will also show data on 25μm arrays that have been designed for faster time constants (5 msec), while maintaining high performance. RVS is also developing a 320 x 240 50μm mid-wave responding FPA. We will review the MWIR sensitivity improvements with this array and provide IR imagery. RVS is developing a 640 x 480 25μm uncooled FPA for a countermine detection application using a two-band assembly designed to be sensitive in both the Restrahlen and Thermal spectral bands. We will provide IR image data on these arrays. RVS has made a significant breakthrough in the development of a 640 x 512 array with a unit cell size of 20 μm x 20 μm, and performance approaching that of the 25μm arrays. The successful development of this array is the first step in achieving mega-pixel formats. This FPA is designed to ultimately achieve performance near the temperature fluxuation limited NETD (<20mK, f/1, 30 Hz). We will show updated performance and imagery on these arrays, which is currently being measured at <45mK, f/1, 30 Hz.