基于渦輪式氣體流量傳感器的用力呼氣容量計算方法

王辰碩; 何光強; 李玥琪; 趙榮建; 陳賢祥; 杜利東; 趙湛; 方震

doi:10.11999/JEIT190051

基于渦輪式氣體流量傳感器的用力呼氣容量計算方法

doi: 10.11999/JEIT190051 cstr: 32379.14.JEIT190051

王辰碩^{1, 2},
何光強^{1, 2},
李玥琪^{1, 2},
趙榮建^{1, 2},
陳賢祥¹,
杜利東¹,
趙湛^{1, 2},
方震^{1, 2, ,}

1.
中國科學院電子學研究所傳感技術國家重點實驗室 ??北京 ??100190
2.
中國科學院大學北京 100049

基金項目: 北京市自然科學基金重點研究專項(Z16003)，國家重點研發(fā)計劃(2016YFC1304302)

詳細信息

作者簡介:
王辰碩：男，1993年生，博士生，研究方向為生命信息感知與計算

何光強：男，1995年生，碩士生，研究方向為可穿戴式技術

李玥琪：女，1990年生，博士生，研究方向為可穿戴式技術

趙榮建：男，1985年生，博士生，研究方向為生命信息感知技術

陳賢祥：男，1979年生，副研究員，碩士生導師，研究方向為可穿戴式技術

杜利東：男，1981年生，助理研究員，研究方向為微納制造技術

趙湛：男，1958年生，研究員，博士生導師，研究方向為微納制造技術，無線傳感器網絡，生命信息感知與計算

方震：男，1976年生，研究員，博士生導師，研究方向為可穿戴式技術

通訊作者:
方震　zfang@mail.ie.ac.cn

中圖分類號: TN051
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- 被引次數: 0
出版歷程
- 收稿日期: 2009-01-18
- 修回日期: 2019-05-14
- 網絡出版日期: 2019-06-04
- 刊出日期: 2019-10-01

Calculation of Forced Vital Capacity Based on Turbine Air Flow Sensor

Chenshuo WANG^{1, 2},
Guangqiang HE^{1, 2},
Yueqi LI^{1, 2},
Rongjian ZHAO^{1, 2},
Xianxiang CHEN¹,
Lidong DU¹,
Zhan ZHAO^{1, 2},
Zhen FANG^{1, 2
, ,}

1.
State Key Laboratory of Transducer Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China
2.
University of Chinese Academy of Sciences, Beijing 100049, China

Funds: The Key Project of Beijing Municipal Natural Science Foundation(Z16003), The National Key Research and Development Project(2016YFC1304302)

摘要

摘要: 渦輪式氣體流量傳感器在用力肺功能測試中用于記錄人體呼氣信號，由于旋轉慣性，對于相同用力呼氣容量(FVC)值，測量結果因呼出氣體流量而異，且差異值通常不可接受。針對該問題，該文通過在傳統(tǒng)穩(wěn)態(tài)渦輪流量計算模型的基礎上引入速度懲罰項，構建一種FVC速度懲罰模型，與此同時，提出使用過幅降采樣渦輪旋轉周數算法，二者結合，提高了FVC測試結果的可接受性。利用國際通用的標準3 L定標桶，模擬真實用力肺功能測試過程，對算法的有效性進行驗證。實驗結果表明：所提方法能夠有效降低前述差異，在一定程度上滿足美國胸科協會(ATS)和歐洲呼吸學會(ERS)所提出的用力肺功能測試可接受標準和準確度要求。
- 用力肺功能測試 /
- 渦輪傳感器 /
- 呼氣信號處理 /
- 用力呼氣容量 /
- 慢性阻塞性肺病
Abstract: Currently, the turbine air flow sensors are widely used to record the human exhalation signals in spirometry, but test results vary due to different expiratory flow for the same Forced Vital Capacity(FVC) measurements, and the differences are usually not in an acceptable range. To address this issue, a FVC velocity penalty model is proposed by introducing speed penalty items to the traditional mathematical model of turbine. Moreover, an over-amplitude drop sampling approach is used to calculate the rotations of the turbine due to the needs for the velocity penalty model to be able to accurately obtain the number of turbine rotations. The performance of the proposed approach is evaluated by using a syringe dispenser of 3L capacity, and results demonstrate that it can reduce the differences and meet the acceptable and accuracy criteria of the American Thoracic Society(ATS) and the European Respiratory Society(ERS) to some extent.
- Spirometry /
- Turbine sensors /
- Respiratory signal processing /
- Forced Vital Capacity(FVC) /
- Chronic Obstructive Pulmonary Disease(COPD)

HTML全文

圖 1 呼氣信號采集系統(tǒng)框圖

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圖 2 低頻信號檢測

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圖 3 高頻信號檢測

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圖 4 3種峰值流速下對不同體積的20次測試結果

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圖 5 Bland-Altman圖

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圖 6 測量結果與真實值的相關性

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表 1 10次隨機氣體推進實驗對渦輪旋轉周數測量值與真實值對比

實驗(次) 1 2 3 4 5 6 7 8 9 10

真實值(周) 256 150 178 358 321 89 205 316 56 124
測量值(周) 253 148 172 354 316 87 204 310 56 122

下載: 導出CSV

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