Empirical Investigation of Noise Reduction Filter for a Flow-Based Spirometer Accuracy Improvement
Abstract
A turbine spirometer with an IR rotary encoder is designed and fabricated for performing Respiratory Function Tests (RFT). The system includes a hardware for gathering breath inspiratory flow rate and a user software which represents analysed data of patients' breath flow and volume parameters in real-time. The purpose of the paper is evaluating the efficiency of three different types of digital noise reduction filters in term of increasing the accuracy of system in calculation of air volume passing through the spirometer turbine by use of data obtained by a flow sensor. Three distinct kinds of flow waves are experimented and the most sufficient filter for corresponding respiratory function tests are reported.
Keywords: spirometer, respiratory function test, noise reduction, IR encoder
DOI: 10.7176/CEIS/10-5-01
Publication date:June 30th 2019
![Download the IISTE publication guideline!](https://www.iiste.org/sub/iiste_footer_journal.jpg)
To list your conference here. Please contact the administrator of this platform.
Paper submission email: CEIS@iiste.org
ISSN (Paper)2222-1727 ISSN (Online)2222-2863
Please add our address "contact@iiste.org" into your email contact list.
This journal follows ISO 9001 management standard and licensed under a Creative Commons Attribution 3.0 License.
Copyright © www.iiste.org