Breath testing apparatus

Details Breath testing apparatus Breath testing apparatus

G - Physics

01

N

G01N 33/497 (2006.01) G01N 33/98 (2006.01) G01N 37/00 (2006.01)

Patent

CA 2223607

This invention consists in breath testing apparatus (10) comprising a breath tube (11), a fuel cell housing (12) incorporating a pump system (12a), a fuel cell (13), a control and computational unit (14) and display (15). A thermistor (22) is provided to detect the temperature of the housing (12) during measurement and the unit (14) compensates the fuel cell output in accordance with the detected temperature.

Cette invention concerne un alcootest (10) comprenant un embout respiratoire (11), un boîtier de cellule électrochimique (12) renfermant un système de pompe (12a), une cellule électrochimique (13), une unité de commande informatique (14) et un écran (15). Un thermistor (22) permet de détecter la température du boîtier (12) durant la mesure et l'unité (14) compense la sortie de la cellule électrochimique en fonction de la température détectée.

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