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首页> 外文会议>Optics in health care and biomedical optics IV >Development of a Novel Spectrometer for Tongue Coating Analyzer based on Volume Holography Transmissive Grating
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Development of a Novel Spectrometer for Tongue Coating Analyzer based on Volume Holography Transmissive Grating

机译：基于体积全息透射光栅的新型舌涂分析仪光谱仪的研制

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摘要

Tongue diagnosis (TD) is an important diagnostic methods in the traditional Chinese medicine (TCM). According to the viewpoint of TCM, the changes of the tongue coating (TC) can reflect the pathological state of the patient. And the nature or severity of diseasec can be determined by observing the TC. Over the years, TD is mostly depended on the subjective experience of the Chinese physician. And the diagnostic results will be impacted by.some factors, e.g. the different light sources or environmental brightness. Recently years, the method of digital image processing has been used into the TD. But its application is limited by the complicated algorithm, time-consuming and big error, etc. Therefore, a novel tongue coating analyzer(TCA) is designed in this paper. Meanwhile, a novel spectrometer for TCA based on the volume holography transmissive (VHT) grating is developed. In this spectrometer, since the VHT grating doesn't produce the stray-light due to the absence of the grooves of classical surface-embossed gratings, the VHT grating is used as the diffraction grating instead of the classical plane or concave grating. Experimental results show that the performances of the spectrometer for TCA have been improved by using the VHT grating, optimizing the light-path structure and software algorithm, etc. Compared with the others, this spectrometer for TCA has many advantages, such as, less diffraction, wider spectrum range, higher efficiency and resolution, etc. The spectrum range of the spectrometer for TCA can reach 300-1000nm, its resolution can reach 1nm and the optical density is larger than 3.
机译：舌诊（TD）是中药（TCM）的重要诊断方法。根据中医的观点，舌苔（TC）的变化可以反映患者的病理状态。通过观察TC可以确定疾病的性质或严重程度。多年来，TD很大程度上取决于中医的主观经验。诊断结果会受到某些因素的影响，例如不同的光源或环境亮度。近年来，TD已经使用了数字图像处理方法。但是其应用受到算法复杂，费时，误差大等问题的制约。因此，本文设计了一种新型的舌苔分析仪（TCA）。同时，开发了一种基于体积全息透射（VHT）光栅的新型TCA光谱仪​​。在该光谱仪中，由于没有经典的表面压花光栅的凹槽，VHT光栅不会产生杂散光，因此VHT光栅被用作衍射光栅，而不是经典的平面或凹面光栅。实验结果表明，通过使用VHT光栅，优化光路结构和软件算法等，可以提高三氯乙酸的光谱仪性能。与其他方法相比，三氯甲烷的光谱仪具有衍射少，衍射少等优点。 ，更宽的光谱范围，更高的效率和分辨率等。用于TCA的光谱仪的光谱范围可以达到300-1000nm，其分辨率可以达到1nm，并且光密度大于3。

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  • 来源
    《Optics in health care and biomedical optics IV》|2010年|p.78451X.1-78451X.8|共8页
  • 会议地点 Beijing(CN)
  • 作者

    Zhong Ren; Guodong Liu; Longmin Dai; Zhen Huang; Lvming Zeng;

  • 作者单位

    Key Lab of Optic-electronic Communication, Jiangxi science technology normal University, Nan Chang, Jiangxi, China. 330038;

    rnKey Lab of Optic-electronic Communication, Jiangxi science technology normal University, Nan Chang, Jiangxi, China. 330038;

    rnDepartment of Engineering Technology, China Eastern Airlines Co. Ltd, Pudong, Shanghai ,China, 201202;

    rnKey Lab of Optic-electronic Communication, Jiangxi science technology normal University, Nan Chang, Jiangxi, China. 330038;

    rnKey Lab of Optic-electronic Communication, Jiangxi science technology normal University, Nan Chang, Jiangxi, China. 330038;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 光、激光生物医学;
  • 关键词

    TCM; tongue coating analyzer; spectrometer; tongue coating; VHT grating.;

    机译：中医;舌苔分析仪光谱仪舌状涂层； VHT光栅。;
  • 入库时间 2022-08-26 13:44:48

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