NITROGEN OXIDE CONCENTRATION MEASUREMENT DEVICE

NITROGEN OXIDE CONCENTRATION MEASUREMENT DEVICE

A nitrogen oxide concentration measurement device (10) comprises a zero scrubber (13) disposed within a gas flow path (16), and a controller (28). The zero scrubber (13) performs subjects exhaled air flowing through the gas flow path (16) from a mouthpiece (11) toward a chamber (15) to a NO removal...

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Hauptverfasser: TANAKA, MOTOHIRO, MATSUBARA, FUMIYA, MIKI, HIDESHI
Format: Patent
Sprache:eng ; fre ; ger
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INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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creator TANAKA, MOTOHIRO
MATSUBARA, FUMIYA
MIKI, HIDESHI
description A nitrogen oxide concentration measurement device (10) comprises a zero scrubber (13) disposed within a gas flow path (16), and a controller (28). The zero scrubber (13) performs subjects exhaled air flowing through the gas flow path (16) from a mouthpiece (11) toward a chamber (15) to a NO removal treatment in a first period, out of a first period and a second period. The controller (28) acquires the concentration of NO contained in the exhaled air on the basis of the differential voltage value (Vd) outputted in the second period, which uses as a reference the differential voltage value (Vd) outputted in the first period.
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subjects INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
title NITROGEN OXIDE CONCENTRATION MEASUREMENT DEVICE
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