1
|
Li Y, Qiu X, Zhang H, Xu L, Lu S, Du L, Chen X, Fang Z. A Fast Calibration Method for Pneumotachograph with a 3L Syringe. Bioengineering (Basel) 2023; 10:1053. [PMID: 37760155 PMCID: PMC10525123 DOI: 10.3390/bioengineering10091053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 08/21/2023] [Accepted: 09/05/2023] [Indexed: 09/29/2023] Open
Abstract
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.
Collapse
Affiliation(s)
- Yueqi Li
- Institute of Microelectronic, Chinese Academy of Sciences (IMECAS), Beijing 100029, China;
- Aerospace Information Research Institute, Chinese Academy of Sciences (AIRCAS), Beijing 100190, China; (H.Z.); (L.X.); (S.L.); (L.D.); (X.C.)
| | - Xin Qiu
- Institute of Microelectronic, Chinese Academy of Sciences (IMECAS), Beijing 100029, China;
- Aerospace Information Research Institute, Chinese Academy of Sciences (AIRCAS), Beijing 100190, China; (H.Z.); (L.X.); (S.L.); (L.D.); (X.C.)
| | - Hao Zhang
- Aerospace Information Research Institute, Chinese Academy of Sciences (AIRCAS), Beijing 100190, China; (H.Z.); (L.X.); (S.L.); (L.D.); (X.C.)
- Personalized Management of Chronic Respiratory Disease, Chinese Academy of Medical Sciences, Beijing 100006, China
| | - Lirui Xu
- Aerospace Information Research Institute, Chinese Academy of Sciences (AIRCAS), Beijing 100190, China; (H.Z.); (L.X.); (S.L.); (L.D.); (X.C.)
- Personalized Management of Chronic Respiratory Disease, Chinese Academy of Medical Sciences, Beijing 100006, China
| | - Saihu Lu
- Aerospace Information Research Institute, Chinese Academy of Sciences (AIRCAS), Beijing 100190, China; (H.Z.); (L.X.); (S.L.); (L.D.); (X.C.)
- Personalized Management of Chronic Respiratory Disease, Chinese Academy of Medical Sciences, Beijing 100006, China
| | - Lidong Du
- Aerospace Information Research Institute, Chinese Academy of Sciences (AIRCAS), Beijing 100190, China; (H.Z.); (L.X.); (S.L.); (L.D.); (X.C.)
- Personalized Management of Chronic Respiratory Disease, Chinese Academy of Medical Sciences, Beijing 100006, China
- University of Chinese Academy of Sciences, Beijing 100190, China
| | - Xianxiang Chen
- Aerospace Information Research Institute, Chinese Academy of Sciences (AIRCAS), Beijing 100190, China; (H.Z.); (L.X.); (S.L.); (L.D.); (X.C.)
- Personalized Management of Chronic Respiratory Disease, Chinese Academy of Medical Sciences, Beijing 100006, China
- University of Chinese Academy of Sciences, Beijing 100190, China
| | - Zhen Fang
- Aerospace Information Research Institute, Chinese Academy of Sciences (AIRCAS), Beijing 100190, China; (H.Z.); (L.X.); (S.L.); (L.D.); (X.C.)
- Personalized Management of Chronic Respiratory Disease, Chinese Academy of Medical Sciences, Beijing 100006, China
- University of Chinese Academy of Sciences, Beijing 100190, China
| |
Collapse
|