ConclusionsPhotogrammetry is a leading candidate technology for measuring the static shape and/or motion of future ultra-lightweight and inflatable space structures. It offers the simplicity of taking photographs coupled with good to excellent measurement precision. This paper discussed recent experiences at NASA using new megapixel consumer digital cameras (Kodak DC290) and commercial photogrammetry software (PhotoModeler® Pro) to create a three-dimensional surface model of an inflatable space antenna. PhotoModeler® handled this application with ease. This technology can be extended to measure vibrating or deploying structures by analyzing time series of images. Automated, digital photogrammetry is under evaluation as a general shape measurement capability for the 16m-diameter vacuum chamber at the Langley Research Center, where ground tests of additional, ultra-lightweight and inflatable space structures are planned for the months and years ahead.
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