Design and development of spirometer using labview

Abstract

Spirometer is widely used in testing lung function and analysing the stages of chronic obstruction. The hospital apparatus
is expensive and not widely affordable by the weaker economic sections. To overcome the existing issues a smaller,
modern version of a spirometer is constructed to break down the barriers posed by cost and usability. The portable
spirometer is constructed using MPX2010DP, a differential pressure sensor alongside a data acquisition device to gauge
the lung volume, and visualizes the results through digital interface. Here the device is constructed and is housed using two
tubes of varying diameters. The setup is connected to myDAQ which in turn is connected to the Computer. The results are
viewed through LabVIEW. Lung Volume of the volunteered subjects was assessed. The values were almost accurate to the
values which were taken from the standard equipment. The accuracy can further be improved by upgrading the pressure
sensor to a more accurate one.