水阻抗式微動感測器應用於橈骨動脈之脈波量測

The Pulse Measuring on Radius Artery Using Water Impedance Micro-Vibration Sensor

李育俊(Yu-Jyun Li)

指導教授 ： 吳明川

國立臺北科技大學/機電學院/機電整合研究所/碩士(2009年)

https://doi.org/10.6841/NTUT.2009.00074

摘要

本研究研製一造價低廉的水阻抗式感測器，此感測器係由高分子化合材料薄膜、導電溶液硝酸鉀（KNO3）與乙酸（CH3COOH）、銅箔片及銅柱所組成，利用溶液連結薄膜可貼合皮膚之優點，用於量測人體手腕橈骨動脈的徑向微小震動。
本文將水阻抗式微動感測器結合資料擷取卡，建構一套非侵入式脈波量測系統。時域上，可顯示脈搏波形，並從中分析得脈搏強度與頻率等資訊；頻域上，透過快速傅立葉轉換，擷取其前十個諧波，依其相對數值比例之大小做為身體健康評估的依據。本文亦對健康的人與感冒病患進行人體的實際量測，並對量測結果進行探討。

關鍵字

脈診 ； 橈骨動脈 ； 快速傅立葉轉換

並列摘要

This research develops a low cost water impedance vibration sensor. This sensor is composed of macromolecular compounds film, Copper foil, Cooper pillar, KNO3 and CH3COOH. The advantage of this sensor is to closely meet the skin. It is used to measure the vibration of radius artery.
This research combines our sensor with DAQ card (Data Acquisition card) to develop a non-invasive measuring system. In time-domain, we can analyze the pulse to know the strength and frequency. In frequency-domain, we use FFT (Fast Fourier Transform) to find the first ten harmonic waves and estimate for the health according to the harmonic waves. This research measure the healthy people and the people who catch a cold, and discuss with the signal we measured.

並列關鍵字

Pulse Felling, Radial Artery ； FFT (Fast Fourier Transform)

參考文獻

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[8] Lee, Chun T., Wei, Ling Y., "Spectrum Analysis of Human Pulse", IEEE Transaction on Biomedical Engineering, vol. BME-30, no. 6, 1983, pp.348-352.

[11] 蔡佳霖，脈搏訊號及心電圖之時頻分析，碩士論文，國立成功大學航空太空工程學系，台南，2007。

[13] A. C. Burton, “The range and variability of the blood flow in the human fingers and the vasomotor regulation by body temperature,”American Physiological Society, vol.127, 1939, pp. 473-453.