FIELD: measuring equipment.
SUBSTANCE: device includes monochromatic pairs, which represent a solid-state monochromatic radiator based on a diode laser and a solid-state monochromatic receiver. Monochromatic pairs are located in segmented profiled rigid elements built into the expiration main of the breather mask behind the expiratory valve. The segmented elements can have the form of a ring, a linear device with a conditioned aspect ratio or an n-faced prism. The optical path of the beam from the radiator to the receiver provides overlapping of the entire cross-sectional area of the air main, which is realized due to the orientation of the radiator and receiver relative to each other and the reflective characteristics of the working surfaces of the segmented element. Flow characteristics of the exhaled air or respiratory mixture are fixed by a complex of pressure and humidity sensors.
EFFECT: ensuring continuous measurements over a long period of time.
6 cl, 4 dwg
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