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  本文關(guān)鍵詞： 考古天文學 圭尺 陶寺 中天觀測 年代　出處：《自然科學史研究》2016年04期 　論文類型：期刊論文

【摘要】：2002年山西襄汾陶寺城址出土一件殘長171.8厘米,且有43個色段端點的漆木桿,疑似標注中天日影的圭尺。為此,文章構(gòu)建了普適的僅由晷影數(shù)據(jù)(或刻度)求解圭表觀測年代的模型。該模型功能較強,能將未知的表高、圭表間距及太陽位置、觀測誤差等參數(shù)同時解出,可廣泛用于圭表測年問題。為求陶寺漆桿的觀測年代,設(shè)定可允許的最大高度角誤差為0.1°,設(shè)定表高80~250 cm、圭表間距0~200 cm,步長1 cm;所求年代范圍為BC 2201-BC1901,步長0.001 d。將這些參數(shù)和色段端點的數(shù)據(jù)代入模型處理,并考慮大氣折射的影響,結(jié)果表明,色段端點中最少有67%與日影無關(guān),故目前判斷其為觀測日影的圭尺尚存困難。
[Abstract]:In 2002, a lacquer wooden pole with 43 color endpoints was unearthed in Xiangfen, Shanxi Province, with a residual length of 171.8cm, suspected of marking the ruler of Zhongtian Sun Shadow. For this reason, In this paper, a universal model based on dials' shadow data (or scale) is constructed to solve the observation age of Gui meter. The model has a strong function and can solve the unknown parameters such as the height of the table, the distance between the tables, the position of the sun, the observation error, and so on at the same time. It can be widely used in the dating problem of Gui meter. In order to find out the observation age of the painted bar of Taosi, The maximum allowable angle error of height is 0.1 擄, the height of the table is 80 ~ 250 cm, the distance between two guidemeters is 0 ~ 200 cm, and the step is 1 cm. The age range is BC2201-BC1901 and the step length is 0.001 d. The data of these parameters and the end points of the color segment are substituted into the model and the effect of atmospheric refraction is taken into account. The results show that at least 67% of the color segment endpoints have nothing to do with the sun shadow, so it is still difficult to judge whether it is a ruler of the solar shadow observation at present.
【作者單位】： 中國科學院國家天文臺;
【基金】：國家自然科學基金資助(項目批準號:11403062)
【分類號】：P1-092

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1 林l，

本文編號：1507424