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A Fast Calibration Method for Pneumotachograph with a 3L Syringe

The pneumotachograph (PNT), a commonly used flowmeter in pulmonary function diagnostic equipment, is the required frequency calibration to maintain high accuracy. Aiming to simplify calibration steps, we developed a fast calibration system with a commercially available 3L syringe to provide a real o...

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Detalles Bibliográficos
Autores principales: Li, Yueqi, Qiu, Xin, Zhang, Hao, Xu, Lirui, Lu, Saihu, Du, Lidong, Chen, Xianxiang, Fang, Zhen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10525123/
https://www.ncbi.nlm.nih.gov/pubmed/37760155
http://dx.doi.org/10.3390/bioengineering10091053
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author Li, Yueqi
Qiu, Xin
Zhang, Hao
Xu, Lirui
Lu, Saihu
Du, Lidong
Chen, Xianxiang
Fang, Zhen
author_facet Li, Yueqi
Qiu, Xin
Zhang, Hao
Xu, Lirui
Lu, Saihu
Du, Lidong
Chen, Xianxiang
Fang, Zhen
author_sort Li, Yueqi
collection PubMed
description The pneumotachograph (PNT), a commonly used flowmeter in pulmonary function diagnostic equipment, is the required frequency calibration to maintain high accuracy. Aiming to simplify calibration steps, we developed a fast calibration system with a commercially available 3L syringe to provide a real output flow waveform. The acquisition of the real output flow waveform is based on the reliable measurement of in-cylinder pressure and the real-time detection of plunger speed. To improve the calibration accuracy, the tapping position for measuring in-cylinder pressure was optimized by CFD dynamic-mesh updating technique. The plunger speed was obtained by tracking the handle of the plunger with a smart terminal. Then, the real output flow was corrected using a compensation model equation. The calibration system was verified by the pulmonary waveform generator that the accuracy satisfied the requirements for respiratory flow measurement according to ATS standardization. The experimental results suggest that the developed method promises the fast calibration of PNT.
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spelling pubmed-105251232023-09-28 A Fast Calibration Method for Pneumotachograph with a 3L Syringe Li, Yueqi Qiu, Xin Zhang, Hao Xu, Lirui Lu, Saihu Du, Lidong Chen, Xianxiang Fang, Zhen Bioengineering (Basel) Article The pneumotachograph (PNT), a commonly used flowmeter in pulmonary function diagnostic equipment, is the required frequency calibration to maintain high accuracy. Aiming to simplify calibration steps, we developed a fast calibration system with a commercially available 3L syringe to provide a real output flow waveform. The acquisition of the real output flow waveform is based on the reliable measurement of in-cylinder pressure and the real-time detection of plunger speed. To improve the calibration accuracy, the tapping position for measuring in-cylinder pressure was optimized by CFD dynamic-mesh updating technique. The plunger speed was obtained by tracking the handle of the plunger with a smart terminal. Then, the real output flow was corrected using a compensation model equation. The calibration system was verified by the pulmonary waveform generator that the accuracy satisfied the requirements for respiratory flow measurement according to ATS standardization. The experimental results suggest that the developed method promises the fast calibration of PNT. MDPI 2023-09-07 /pmc/articles/PMC10525123/ /pubmed/37760155 http://dx.doi.org/10.3390/bioengineering10091053 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Li, Yueqi
Qiu, Xin
Zhang, Hao
Xu, Lirui
Lu, Saihu
Du, Lidong
Chen, Xianxiang
Fang, Zhen
A Fast Calibration Method for Pneumotachograph with a 3L Syringe
title A Fast Calibration Method for Pneumotachograph with a 3L Syringe
title_full A Fast Calibration Method for Pneumotachograph with a 3L Syringe
title_fullStr A Fast Calibration Method for Pneumotachograph with a 3L Syringe
title_full_unstemmed A Fast Calibration Method for Pneumotachograph with a 3L Syringe
title_short A Fast Calibration Method for Pneumotachograph with a 3L Syringe
title_sort fast calibration method for pneumotachograph with a 3l syringe
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10525123/
https://www.ncbi.nlm.nih.gov/pubmed/37760155
http://dx.doi.org/10.3390/bioengineering10091053
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