SBIR Phase I: A Bolometric Imager for Solar Irradiance Studies

SBIR 第一阶段：用于太阳辐照度研究的测辐射热成像仪

• 批准号: 9560456
• 负责人: Peter Foukal
• 金额: $ 7.19万
• 依托单位: Cambridge Research & Instrumentation Inc
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-02-01 至 1996-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9560456&HistoricalAwards=false
• 关键词: SBIR; Phase; Bolometric; Imager; Solar

This Small Business Innovation Research Phase I project has as its main objective the development of a solar telescope and detector capable of imaging heat flow inhomogeneities at the sun's photosphere, with uniform photometric response over all wavelengths between the ultraviolet and infrared. Such a Solar Bolometric Imager (SBI) would provide an innovative new tool for identifying mechanisms of long-term solar luminosity variation. These variations are of great interest in studies of climate fluctuation, an issue of central importance in Global Change studies. The opportunity for innovation arises from recent advances in uncooled, relatively high-definition (80,000 element) thermal arrays. The main aim in Phase I is to determine whether the spectral absorptance of these arrays can be modified by careful deposition of gold blacks, to provide uniform response over the wavelength range between 0.33( and about 2( containing most of the solar radiation that reaches the Earth's surface. If this can be achieved while retaining the detectivity and time constant of the array, an all-reflecting telescope to complete the design of the SBI will be designed in Phase I. The SBI will be constructed and operated for one year in Phase II, during the period of increasing solar activity in the forthcoming sunspot cycle 23. A successful ground-based SBI would form the basis for a space-borne SBI as an imaging complement to absolute radiometers used for measuring fluctuations in the total irradiance. Commercial applications of bolometric imaging with relatively high angular definition include remote sensing and industrial metrology (calibration of thermographic cameras, lighting design, combustion research and monitoring). A high definition, uncooled array with good response in the near-IR could also provide the focal plane for a convenient and inexpensive false color spectral imaging camera with many niche applications in biomedical imaging, process control and non-destructive testing.

这个小企业创新研究第一阶段项目的主要目标是开发一种太阳望远镜和探测器，能够成像太阳光球的热流不均匀性，在紫外线和红外线之间的所有波长上都有均匀的光度响应。这种太阳辐射热成像仪（SBI）将为识别太阳光度长期变化机制提供一种创新的新工具。气候波动是全球变化研究的一个核心问题，这些变化对气候波动的研究具有极大的兴趣。创新的机会来自于最近在非冷却、相对高清（80000元）热阵列方面的进展。第一阶段的主要目的是确定这些阵列的光谱吸收率是否可以通过精心沉积金黑色来修改，以在包含大部分到达地球表面的太阳辐射的0.33（至约2）波长范围内提供均匀响应。如果可以在保持阵列的探测性和时间常数的情况下实现这一目标，则将在第一阶段设计一台全反射望远镜来完成SBI的设计。SBI将在第二阶段建造和运行一年，在即将到来的太阳黑子周期23中太阳活动增加的时期。成功的地面固定监测仪将成为空间机载固定监测仪的基础，作为对用于测量总辐照度波动的绝对辐射计的成像补充。具有相对高角度清晰度的辐射热成像的商业应用包括遥感和工业计量（热像仪的校准、照明设计、燃烧研究和监测）。具有良好近红外响应的高清晰度非冷却阵列也可以为方便廉价的假彩色光谱成像相机提供焦平面，在生物医学成像，过程控制和无损检测中具有许多小众应用。