| 摘要 |
<p>According to the present invention, a lung capacity meter which measures a lung capacity by measuring a respiratory flow is able to directly show an output value which is the product of electric power and a voltage in order to solve problems of generating an error or outputting a different value when a lung capacity measurement value is measured by a current or a voltage. Based on the forementioned, the present invention is able to calculate and show a lung capacity by time with information of electric energy inputted to a highly sensitive microphone of a smartphone in order to measure accurately by calculating a lung capacity, performing an A/D conversion of a calculation value, and outputting the converted value to a user. The present invention includes a display unit (1-9) formed in the upper end of a breathing tube in order to display lung capacity information on a screen so that a user easily sees calculated lung capacity information by the control signal of a control unit (1-10) calculating a lung capacity.</p> |
