Dynamic Limb-pressure Visualization and Measurement Based on Mechanoluminescent Materials

Shao-hui MAO; Bing CHEN; Yuan-tian ZHENG; Xu LI; Ze-feng HUANG; Yu FU; Yao-hu LEI; Chun-feng WANG; Si-cen QU; Deng-feng PENG

doi:10.37188/CJL.20210031

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Dynamic Limb-pressure Visualization and Measurement Based on Mechanoluminescent Materials

Cover Story | 更新时间：2021-04-23

- Dynamic Limb-pressure Visualization and Measurement Based on Mechanoluminescent Materials
- Chinese Journal of Luminescence Vol. 42, Issue 4, Pages: 397-403(2021)
- 作者机构：
  
  1.深圳大学物理与光电工程学院，广东　深圳　 518061
  2.深圳市智能光测与感知重点实验室，广东　深圳　 518061
  3.深圳大学体育部，广东　深圳　 518061
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China(61875136;52002246;11972235);Fundamental Research Project of Guangdong Province(2020A1515011315);Startup Foundation for Distinguished Scholars of Shenzhen(000279);Scientific Research Foundation as Phase II Construction of High Level University for the Youth Scholars of Shenzhen University(000002110223);Foundation of Shenzhen Key Laboratory of Intelligent Optical Measurement and Detection(ZDSYS20200107103001793)
- DOI：10.37188/CJL.20210031
  CLC： O482.31
- Received：18 January 2021，
  
  Revised：03 February 2021，
  
  Published：01 April 2021
- 稿件说明：
移动端阅览
Shao-hui MAO, Bing CHEN, Yuan-tian ZHENG, et al. Dynamic Limb-pressure Visualization and Measurement Based on Mechanoluminescent Materials[J]. Chinese journal of luminescence, 2021, 42(4): 397-403.
DOI：

Shao-hui MAO, Bing CHEN, Yuan-tian ZHENG, et al. Dynamic Limb-pressure Visualization and Measurement Based on Mechanoluminescent Materials[J]. Chinese journal of luminescence, 2021, 42(4): 397-403. DOI： 10.37188/CJL.20210031.

摘要

应力发光是机械外力作用于应力发光材料时的发光现象。应力发光材料，尤其是弹性应力发光材料在应力可视化传感领域有着重要的应用前景。基于弹性应力发光材料的发光强度与应力大小的线性特征规律，该材料可以用来制成检测应力强度以及位置的应力分布传感器，实现动态应力的非破坏性检测和应力可视化。人体肢体的动态压力分布能反映出肢体的结构、体姿势的受力和运动状态，甚至是人体健康状态等信息。通过对肢体压力的测试和分析，可获取人体在各体态和运动下的生理和机能参数，这对临床医学诊断、生物力学及体育运动均有重要意义。本文首先利用固相法制备具有绿光发射的SrAl

∶Eu

(SAO-E)应力发光材料，进而利用SAO-E和硅橡胶(Ecoflex复合)制成的柔性应力发光薄膜来采集肢体(足/手/拳)压力图像，不仅达到了肢体压力大小可视化的目的，而且还能够分析不同位置压力大小的分布情况。与传统的测量方式相比，基于应力发光材料的运动肢体压力测量方法直接可视化，不仅提升了辨识度，还可以得到压力细节特征，同时也为运动健康监测提供了一种新的思路。

Abstract

Mechanoluminescence(ML) is the light-emitting phenomenon of materials excited by external mechanical forces. ML materials

especially elastic-mechanoluminescent(EML) ones

have important applications for visualization sensing of stress/strain. Based on the reproducible properties of EML materials and the liner relationship between luminescent intensity and stress value

it can be used to make an intelligent stress distribution image sensor that detects the stress intensity and the location of structure

so as to realize the non-destructive detection and stress visualization of dynamic force of movement of human body. The dynamic pressure distribution of the human body can reflect the condition of the body

the force and movement state of the body posture

and even the health of the human body. Through the test and analysis of limb pressure

it can obtain the physiological and functional parameters of the human body under various postures and exercises

which are of great significance for clinical medical diagnosis

biomechanics and sports. In this article

the solid-state reaction method is applied to prepare the SrAl

∶Eu

(SAO-E) EML material with green light emission

and then the SAO-E and silicone rubber(Ecoflex composite) are prepared to design a flexible membrane. The membrane is used to collect limb pressure images

which can not only achieve the visualization purpose of dynamic pressure

but also analyze the distribution of pressure at different positions of the limb. Compared with traditional measurement methods

the limb pressure measurement method based on EML materials can be directly visualized

which not only improves the recognition

but also obtains the detailed characteristics of the pressure

and also provides a new way of thinking for foot health monitoring.

关键词

Keywords

references

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Related Institution

School of Physics and Optoelectronic Engineering， Shenzhen university

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