A PORTABLE SPIROMETER FOR MEASURING LUNG CAPACITY AND RESPIRATION GAS

摘要

The present invention relates to a portable apparatus for analysis of lung function and measures the vital capacity and the breathing gas at the same time specific a main body including an air tube; Infrared spectroscopic unit containing a particular breathing to measure the amount of gas, the infrared light source, an optical filter and an infrared sensor that is introduced from the air tube; Spirometry lung capacity detection unit comprises a sensor for measuring the vital capacity breathing gas flowing in from the air tube; The infrared sensor and for processing each of the signals output from the lung capacity sensor, signal amplifier, signal processor, storage, display and signal processing unit including a signal transmission; And for correcting the measured value for the breathing gas, comprising a control unit including a tank for standard gas and the reference gas, characterized in that respective units are capable of operating independently of each other.