摘要
本文通过使用X射线微距焦检测设备测量市场上四种主要类型的有核养殖珍珠(南洋珍珠、Akoya珍珠、大溪地珍珠和淡水有核养殖珍珠)的珠层厚度,利用概率统计的方法对四种有核养殖珍珠珠层厚度的最大值、最小值、平均值、中位数和标准差等进行对比分析。另外选用正态分布对珠层厚度样本进行拟合,结果显示四组数据基本服从正态分布,其95%置信区间分别为:南洋珍珠[0.724,3.645],Akoya珍珠[0.106,0.793],大溪地珍珠[0.650,2.014],淡水珍珠[1.600,4.233],单位为毫米(mm)。最后本文结合珠层厚度和样品的外观特征,讨论珠层厚度对珍珠耐久性和美观度的影响。
In this study,we use a microfocus X-ray inspection system to measure the nacre thickness of four main types of bead-cultured pearls in the market(South Sea pearls,Akoya pearls,Tahitian pearls and freshwater bead-cultured pearls).Compare the descriptive statistics of the four types of pearls,including the maximum value,minimum value,mean value,median value and standard deviation et al.In addition,the results show that the nacre thickness of the pearls follows a normal distribution.The 0.95 confidence intervals are:South Sea pearls[0.724,3.645],Akoya pearls[0.106,0.793],Tahitian pearls[0.650,2.014],freshwater bead-cultured pearls[1.600,4.233],unit in millimeters(mm),combined with nacre thickness and quality of the pearls,the infuence of nacre thickness on durability and appearance of the pearls was discussed in the end.
作者
林默青
郜玉杰
徐玉杰
张启东
韩荣荣
裘晓筱
LIN Moqing;GAO Yujie;XU Yujie;ZHANG Qidong;HAN Rongrong;QIU Xiaoxiao(Guild Gem Laboratories,Shenzhen 518020;Guild Gem Laboratories,Zhuji 311804)
出处
《中国宝玉石》
2025年第1期16-24,共9页
China Gems & Jades
关键词
有核养殖珍珠
珍珠层厚度
正态分布
bead-cultured pearl
nacre thickness
normal distribution
作者简介
林默青(1988-),女,主要从事宝石检测和研究工作,Email:linmoqing@guildgemlab.com。
