期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2008
卷号：XXXVII Part B5
页码：81-88
出版社：Copernicus Publications
摘要：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
