使用布拉格光纖光柵量測中醫寸口脈之脈波：脈波頻譜分析

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研究生：	洪彬哲 Hung, Ping-Che
論文名稱：	使用布拉格光纖光柵量測中醫寸口脈之脈波：脈波頻譜分析 Pulse Waveform Measurement at Cunkou Pulse in Traditional Chinese Medicine Using Fiber Bragg Grating
指導教授：	王立康 Wang, Li-Karn
口試委員:	劉文豐 Liu, Wen-Fung 李澄鈴 Lee, Cheng-Ling
學位類別：	碩士 Master
系所名稱：	電機資訊學院 - 光電工程研究所 Institute of Photonics Technologies
論文出版年：	2024
畢業學年度：	113
語文別：	中文
論文頁數：	66
中文關鍵詞：	中醫脈診、布拉格光纖光柵、脈波頻譜分析、器官共振理論
外文關鍵詞：	Pulse diagnosis in Traditional Chinese Medicine, Fiber Bragg Grating, Pulse waveform spectral analysis, Organ resonance theory
相關次數：	點閱：58 下載：0
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布拉格光纖光柵(FBG)具有對溫度及應變敏感的特性，當溫度或應變發生變化
時，布拉格光纖光柵的反射波長就會發生偏移。本篇使用矽膠皮封裝布拉格光纖光
柵，避免光纖斷裂的同時也能增加些許的彈性，將三個布拉格光纖光柵放入長寬高為
20𝑐𝑚 × 5𝑐𝑚 × 3𝑚𝑚的膠皮中，並放在中醫的寸口脈之寸、關、尺三部脈位，感受橈動
脈脈膊的跳動訊號，量測受試者的左手與右手之寸、關、尺脈波，觀察受試者左右手的脈
波。
將擷取到的脈波訊號匯入 Matlab 去除雜訊，保留 0.5Hz 到 12Hz 的訊號，接著
進行傅立葉轉換，得到脈波的頻域訊號圖，取前六個諧波的能量百分比，對比患者
與健康人之間的差異，驗證頻譜分析的可行性。患者包括三位高血壓的年輕人、一
位高血壓且感冒的年輕人和一位高血壓、心臟病與糖尿病的長輩。

The Fiber Bragg Grating (FBG) is sensitive to temperature and strain changes, and
when these occur, the reflected wavelength of the FBG shifts. In this study, the FBG is
encapsulated in a silicone sheath, which not only prevents the fiber from breaking but also
adds some elasticity. Three FBGs are placed in a silicone sheath with dimensions of 20 cm
× 5 cm × 3 mm and positioned at the cun, guan, and chi pulse points on the traditional
Chinese medicine pulse-taking locations at the wrist to detect the radial artery's pulse
signals. The pulse waves at the cun, guan, and chi positions on both the left and right wrists
of the subject are measured, allowing for observation of the pulse waves from both hands.
The captured pulse wave signals are imported into Matlab to remove noise, retaining
signals between 0.5 Hz and 12 Hz. Then, a Fourier transform is performed to obtain the
frequency-domain signal plot of the pulse wave. The energy percentages of the first six
harmonics are extracted and compared between patients and healthy individuals to validate
the feasibility of spectral analysis. The patient group includes three young individuals with
hypertension, one young individual with both hypertension and a cold, and one elderly
person with hypertension, heart disease, and diabetes.

摘要.................................................................. i
ABSTRACT ........................................................... ii
致謝.................................................................. iii
目錄.................................................................. iv
圖目錄................................................................ vi
表目錄................................................................ ix
第一章 序論........................................................... 1
1.1 前言............................................................ 1
1.2 研究背景........................................................ 3
1.3 研究動機和目的.................................................. 4
1.4 文獻回顧........................................................ 5
第二章 實驗原理與脈波分析............................................. 8
2.1 光纖基本原理.................................................... 8
2.2 光纖的損耗性質.................................................. 9
2.3 光柵............................................................ 10
2.4 布拉格光纖光柵(Fiber Bragg Grating, FBG) .......................... 11
2.5 布拉格光纖光柵相關公式.......................................... 12
2.6 摻鉺光纖(Erbium Doped Fiber, EDF) ................................ 14
2.7 光學隔離器(Optical isolator) ....................................... 15
2.8 光纖耦合器(Fiber coupler) ......................................... 16
2.9 脈波的時域分析.................................................. 17
2.10 脈波的頻域分析................................................. 18
2.11 傳統中醫的寸關尺及脈象......................................... 20
第三章 實驗架構....................................................... 23
3.1 光路架構........................................................ 23
3.2 膠皮製作與施力架構.............................................. 24
3.3 I-MON 256 Interrogation monitor .................................... 29
3.4 資料處理........................................................ 31
v
第四章 實驗結果與討論................................................. 34
4.1 實驗步驟........................................................ 34
4.2 脈波實驗........................................................ 35
4.3 健康人的脈波.................................................... 36
4.4 高血壓年輕人的脈波.............................................. 47
4.5 高血壓且感冒年輕人的脈波........................................ 54
4.6 高血壓、心臟病與糖尿病長輩的脈波................................ 57
第五章 結論............................................................61
參考文獻...............................................................63
                                

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