LUNG CAPACITY DETECTION DISPLAY DEVICE USING BUOYANCE DIFFERENCE

摘要

PROBLEM TO BE SOLVED: To provide an appliance capable of easily measuring lung capacity in a hot spring or a swimming pool.;SOLUTION: A handle is provided on a float, and a function for measuring a load applied to a position between the handle and the float is provided. In a state in which a body of a person submerges in water to a height of a neck, a difference of loads applied to the position between the handle and the float between a state in which air in the lungs is breathed out completely and air is breathed in is determined, then, lung capacity is calculated from a volume corresponding to the difference of loads and the lung capacity is displayed. According to a kind or temperature of sea water and a hot spring, correction according to difference of a specific gravity is performed.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2018,JPO&INPIT