胶囊内窥镜便携式无线能量发射系统

石煜; 颜国正; 朱柄全

doi:10.3788/OPE.20142201.0132

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胶囊内窥镜便携式无线能量发射系统

微纳技术与精密机械 | 更新时间：2020-08-13

- 胶囊内窥镜便携式无线能量发射系统
- Portable wireless power transmitting system for video capsule endoscopes
- 光学精密工程 2014年22卷第1期页码：132-137
- 作者机构：
  
  上海交通大学电子信息与电气工程学院上海,200240
- 作者简介：
- 基金信息：
  
  国家自然科学基金资助项目(No.31170968, No.31271069)()
- DOI：10.3788/OPE.20142201.0132
  中图分类号： TH776.1
- 收稿日期：2013-08-12，
  
  纸质出版日期：2014-01-15
- 稿件说明：
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石煜, 颜国正, 朱柄全. 胶囊内窥镜便携式无线能量发射系统[J]. 光学精密工程, 2014,22(1): 132-137

SHI Yu, YAN Guo-zheng, ZHU Bing-quan. Portable wireless power transmitting system for video capsule endoscopes[J]. Editorial Office of Optics and Precision Engineering, 2014,22(1): 132-137
石煜, 颜国正, 朱柄全. 胶囊内窥镜便携式无线能量发射系统[J]. 光学精密工程, 2014,22(1): 132-137 DOI： 10.3788/OPE.20142201.0132.

SHI Yu, YAN Guo-zheng, ZHU Bing-quan. Portable wireless power transmitting system for video capsule endoscopes[J]. Editorial Office of Optics and Precision Engineering, 2014,22(1): 132-137 DOI： 10.3788/OPE.20142201.0132.

摘要

对采用电磁感应无线能量传输(WPT)系统为视频胶囊内窥镜(VCE)提供能量的技术进行优化

主要对无线能量发射系统进行了改进

并搭建了便携式WPT平台。通过比较磁场强度和均匀度

选定了合适的发射线圈结构;通过分析谐振原理并测试

值变化

确定了传输频率;在发射电路中加入可调电感提高频率稳定性

并测量了电流的波动情况。实验显示:优化设计的WPT系统稳定可靠

VCE在WPT平台上工作正常

可以30 frame/s的帧率向接收天线发送分辨率为320×240的图像

功率为78.4 mW。该无线能量发射系统可携带

传输效率和稳定性受人体行动影响较小

可保证VCE在高频率和高分辨率状态下持续工作

提高了VCE临床应用的可行性。

Abstract

An existing Wireless Power Transmission (WPT) system based on electromagnetic inductive coupling for Video Capsule Endoscopes (VCE) was optimized

which focused on improving its energy transmission system. A portable WPT platform was presented with the detailed information about system optimization. The proper structure of transmitting coil was selected through comparing magnetic density and uniformity

then the transmission frequency of the system was chosen in terms of analyzing the resonance principle and testing the quality factors (

-factor). The frequency stability was improved using an adjustable inductance in series with the transmission circuit

and the transmitting current fluctuation along with the frequency was measured. The experiments show that the optimized WPT system can transmit an output power of 78.4 mW for the VCE

in stable and reliable functions. During experiments

the VCE produces clear images with a resolution of 320 × 240 at a frame rate of 30 frames per second. The feasibility of VCE for the clinical applications has been improved as the portable energy transmission system has a higher transmission efficiency and stability and can support the VCE to work continuously in a higher resolution and frequency.

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references

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