Pulmonary Function Test Using Fiber Bragg Grating Spirometer

Ambastha, Shikha and Umesh, Sharath and Maheshwari, Uma K and Asokan, Sundarrajan (2016) Pulmonary Function Test Using Fiber Bragg Grating Spirometer. In: JOURNAL OF LIGHTWAVE TECHNOLOGY, 34 (24). pp. 5682-5688.

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Abstract

Pulmonary function tests (PFTs) are noninvasive diagnostic tests that evaluate the functionality of the lungs. Spirometry is an established diagnostic tool for the evaluation and management of lung disorders. Pulmonary function testing carried out using a spirometer provides vital information about the functional status of the respiratory system. In this study, a spirometer based on a fiber Bragg grating (FBG) sensor for PFT has been proposed. The proposed fiber Bragg grating spirometer (FBGS) is a novel, noninvasive device that has the ability to convert the rate of air flow into strain variations using an FBG sensor bonded on a cantilever. The FBGS dynamically acquires in real time, the complete breath sequence comprising of inhalation phase, pause phase, and exhalation phase, in terms of the air flow rate along with the time duration of each phase. Fundamental pulmonary parameters such as forced vital capacity (FVC), forced expiratory volume in the first second (FEV1), the FEV1/FVC ratio, and peak expiratory flow are evaluated from the data obtained from the FBGS, which will aid greatly during clinical tests. The results from the FBGS developed are compared with a standard hospital grade pneumotachograph-based spirometer for a sample size of 16 subjects to prove the efficacy of the proposed device.

Item Type:	Journal Article
Publication:	JOURNAL OF LIGHTWAVE TECHNOLOGY
Additional Information:	Copy right for this article belongs to the IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
Department/Centre:	Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Date Deposited:	31 Jan 2017 05:28
Last Modified:	31 Jan 2017 05:28
URI:	http://eprints.iisc.ac.in/id/eprint/56115

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