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TEMMI, a Three-dimensional Exploration Multispectral Microscope Imager for planetary exploration missions

机译：TEMMI，用于行星探测任务的三维探测多光谱显微镜成像仪

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摘要

In 2009, the Canadian Space Agency funded a project to create a field-deployable high-resolution microscope with 3D and multispectral capabilities. The instrument, called the Three-dimensional Exploration Multispectral Microscopic Imager, or TEMMI, was designed to be mounted on the manipulator-arm of a robotic rover for use in analogue planetary exploration missions. TEMMI can acquire images with a resolution as high as 2.2 mu m/pixel for an area 5.7 x 2.1 mm in size. As a result, grains sizes as small as -6.6 mu m (very fine silt) are observable. The instrument has three sets of nine distinct light-emitting diodes with wavelengths ranging from 365 nm to 850 nm. In the 2015 and 2016 CanMars Mars Sample Return analogue mission, this prototype was utilized to observe micro-textures and features of various rocks and unconsolidated samples. Microscopic image data were used to provide micro-scale context for these samples, and was synthesized with other rover-based instrument data on the collected samples to aid in geologic classification and to determine formation and geologic histories of the samples. In addition to colour images acquired during the CanMars mission, TEMMI has also been tested and used extensively in a laboratory setting. The multispectral capabilities of TEMMI demonstrate that it is capable of identifying olivine in a mantle xenolith sample at the mineral-grain scale. The ability of TEMMI to generate 3D models at the micro-texture scale enables observations of intricate flow features that would not be visible at larger scales. While additional development has been identified in order to raise the Technical Readiness Level of TEMMI, the combination of laboratory studies and analogue deployments have demonstrated that it can be a key tool for planetary scientists.
机译：2009年，加拿大航天局（Canadian Space Agency）资助了一个项目，以创建一种具有3D和多光谱功能的可现场部署的高分辨率显微镜。该仪器被称为三维探索多光谱显微成像仪（TEMMI），其设计目的是安装在机器人漫游车的机械臂上，用于模拟行星探索任务。 TEMMI可以在5.7 x 2.1 mm的区域中获取分辨率高达2.2μm/像素的图像。结果，观察到的晶粒小至-6.6微米（非常细的粉砂）。该仪器具有三组九个不同的发光二极管，波长范围从365 nm到850 nm。在2015年和2016年的CanMars Mars Sample Return模拟任务中，此原型被用来观察微观纹理以及各种岩石和未固结样品的特征。显微图像数据用于为这些样品提供微观背景，并与收集到的样品上其他基于流动站的仪器数据进行合成，以帮助进行地质分类并确定样品的形成和地质历史。除了在CanMars任务期间获取的彩色图像外，TEMMI还已经在实验室环境中进行了测试和广泛使用。 TEMMI的多光谱能力表明，它能够以矿物质粒度识别地幔异岩样品中的橄榄石。 TEMMI能够在微观纹理尺度上生成3D模型，从而能够观察复杂的流动特征，而这些特征在较大尺度下是不可见的。为了提高TEMMI的技术准备水平，已经确定了其他的发展，但是实验室研究和模拟部署的结合表明，它可以成为行星科学家的关键工具。

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  • 来源
    《Planetary and space science》 |2019年第1期|57-74|共18页
  • 作者

    Bourassa Matthew; Osinski Gordon R.; Tornabene Livio L.; Caudill Christy M.; Christoffersen Peter; Daly Michael G.; Godin Etienne; Pilles Eric A.; Ryan Catheryn;

  • 作者单位

    Univ Western Ontario Ctr Planetary Sci & Explorat 1151 Richmond St London ON N6A 5B7 Canada|Univ Western Ontario Dept Earth Sci 1151 Richmond St London ON N6A 5B7 Canada|Univ Western Ontario Dept Elect & Comp Engn 1151 Richmond St London ON N6A 5B9 Canada;

    Univ Western Ontario Ctr Planetary Sci & Explorat 1151 Richmond St London ON N6A 5B7 Canada|Univ Western Ontario Dept Earth Sci 1151 Richmond St London ON N6A 5B7 Canada|Univ Western Ontario Dept Phys & Astron 1151 Richmond St London ON N6A 5B7 Canada|Univ Western Ontario Dept Elect & Comp Engn 1151 Richmond St London ON N6A 5B9 Canada;

    Univ Western Ontario Ctr Planetary Sci & Explorat 1151 Richmond St London ON N6A 5B7 Canada|Univ Western Ontario Dept Earth Sci 1151 Richmond St London ON N6A 5B7 Canada;

    York Univ CRESS 4700 Keele St Toronto ON M3J 1P3 Canada;

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  • 正文语种 eng
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  • 关键词

    Microscopic imager; Mars; Rover; Analogue mission;

    机译：显微成像仪;火星;漫游者类比任务;

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