PHOTOGRAMMETRIC ANALYSIS OF SOLAR COLLECTORS
Digital close range photogrammetry has proven to be a precise and efficient measurement technique for the assessment of shape accuracies of solar collectors and their components. The combination of high quality megapixel digital still cameras, appropriate software, suitable targeting and calibrated reference scales in general is sufficient to provide coordinate measurements with precisions of 1:50,000 or better. The extreme flexibility of photogrammetry to provide high accuracy three dimensional coordinate measurements over almost any scale makes it particularly appropriate for the measurement of solar collector systems. Photogrammetry can also provide information for the analysis of curved shapes and surfaces, which can be very difficult to achieve with conventional measurement techniques. A selection of measurement projects carried out on assembly jigs, component parts and whole solar collectors will be presented. The potential of photogrammetry will be demonstrated by presenting measured effects arising from thermal expansion and gravitational forces on selected components.
Solar collector parabolic trough quality control shape measurement simulation network design
M.R.Shortis G.H.G.Johnston K.Pottler E.Lttpfert
Science, Engineering and Technology Portfolio, RMIT University, GPO Box 2476V, Melbourne 3001, Austr Excelsia Accomplis, 104 The Mountain Road, Bungendore, NSW 2621, Australia German Aerospace Centre (DLR), Institute of Technical Thermodynamics, Solar Research, Plataforma Sol German Aerospace Centre (DLR), Institute of Technical Thermodynamics, Solar Research, Linder Hone, C
国际会议
北京
英文
5146-5152
2008-07-03（万方平台首次上网日期，不代表论文的发表时间）