• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Optical Diagnostic Methods for Inorganic Transmissive Materials >cSRM 2035: a rare-earth oxide glass for the wavelength calibration of near-infrared dispersive and Fourier transform spectrometers
【24h】

cSRM 2035: a rare-earth oxide glass for the wavelength calibration of near-infrared dispersive and Fourier transform spectrometers

机译：cSRM 2035：一种稀土氧化物玻璃，用于近红外色散和傅立叶变换光谱仪的波长校准

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Abstract: The National Institute of Standards and Technology is developing an optical filter standard for calibration of the wavelength axis of near infrared (NIR) transmission spectrometers. A design goal for the initial candidate Standard Reference Material (cSRM) filter was to provide absorbance peaks evenly covering the spectral region between 800 nm to 1600 mm (12,000 cm$+$MIN@1$/ to 6,500 cm$+$MIN@1$/). The reproducibility of the peak location, for batch-certified filters, was to be better than 0.02 nm (approximately 0.1 cm$+$MIN@1$/). Glasses with 1 to 3 mole % Yb$-2$/O$-3$/, Sm$- 2$/O$-3$/, and Nd$-2$/O$-3$/, incorporated into a commercial lanthanum oxide glass were evaluated for this proposed optical standard. An initial batch of cSRM 2035 filters was prepared based on studies of glasses made and evaluated in our laboratory. An interlaboratory comparison study was initiated in February 1997 to evaluate the utility of these filters for the chemical, pharmaceutical, instrumentation, and regulatory communities. Information concerning peak-picking algorithms, wavelength coverage, geometry preferences, and other parameters was solicited from the users. Based upon input from the participants of this interlaboratory study, we are making several changes to make SRM 2035 more useful to our customers. Two of these changes are: (1) incorporating Ho$-2$/O$-3$/ into the glass to introduce an absorbance peak at approximately 2000 nm (approximately 5000 cm$+$MIN@1$/) and (2) providing users with a standard center of gravity (COG) peak-picking algorithm to locate the absorbance peaks of the SRM filter precisely. Recent results have demonstrated that the COG method provides a 10 fold improvement in the precision of locating peaks compared with traditional peak-picking methods. !6
机译：摘要：美国国家标准技术研究所正在开发一种用于校准近红外（NIR）透射光谱仪的波长轴的光学滤光片标准。初始候选标准参考材料（cSRM）滤光片的设计目标是提供均匀覆盖800 nm至1600 mm（12,000 cm $ + $ MIN @ 1 $ /至6,500 cm $ + $ MIN @ 1）之间光谱区域的吸收峰$ /）。对于批次认证的滤光片，峰位置的重现性应优于0.02 nm（约0.1 cm $ + $ MIN @ 1 $ /）。 Yb $ -2 $ / O $ -3 $ /，Sm $ -2 $ / O $ -3 $ /和Nd $ -2 $ / O $ -3 $ /的摩尔百分比为1-3的眼镜针对此提议的光学标准对商用氧化镧玻璃进行了评估。根据在我们实验室中制作和评估的眼镜的研究，准备了第一批cSRM 2035过滤器。 1997年2月开始了实验室间的比较研究，以评估这些过滤器在化学，制药，仪器和监管领域的实用性。用户征求了有关峰采算法，波长范围，几何形状偏好和其他参数的信息。根据此实验室间研究参与者的意见，我们正在进行一些更改，以使SRM 2035对客户更有用。其中两个变化是：（1）将Ho $ -2 $ / O $ -3 $ /合并到玻璃中，以在约2000 nm（约5000 cm $ + $ MIN @ 1 $ /）处引入吸收峰；和（2 ），为用户提供标准的重心（COG）峰提取算法，以精确定位SRM过滤器的吸收峰。最近的结果表明，与传统的峰提取方法相比，COG方法可将峰的定位精度提高10倍。 ！6

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号