REVIEW ON DESIGN, ANALYSIS AND IMPLEMENTATION OF SPIROMETER

Mechanical Engineering, Biomedical Engineering

Pulmonary diseases are major causes of ill-health throughout the world. Pulmonary infection such as acute bronchitis and pneumonia are common. The diagnosis of these diseases is facilitated by pulmonary parameter analysis using spirometer which has many limitations such that analog or mechanical devices does not have that accuracy and provision to store the data for further investigation. In electronic spirometer we cannot get inspiratory parameters. The quantitative measurement and permanent record of the diagnosed diseases is difficult. The computerized methods for recording and analysis of the respiratory parameters may overcome some of limitations of conventional Spirometry. An analysis of inspiratory parameters may quantify the changes in different respiratory conditions in various diseases. The use of modern digital signal processing technique may lead deep insight to get related diagnostic information. Spirometer needs forceful exhalation and inspiration. For accurate measurement there should be minimum resistance to the exhaled or to be inspired air by the transducer. Hence the designing must involve aerodynamic study of the sensor.

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