| 摘要 |
PURPOSE: A multi-breathalyzer is provided to determine if collected breath is a proper sample, to accurately and precisely calculate alcohol concentration with a multi-analysis structure comprising a multisensor, and to have reliability. CONSTITUTION: A multi-breathalyzer comprises: detection modules (111,112) for detecting alcohol in inputted expiration gas; a connection tube through which expiration gas flows from a mouthpiece (103); branched pipes which are branched from the connection tube and are connected to the detection modules; an inhalation device (109) which receives and uniformly distributes expiration gas to the branched pipes; and a micom (125) which calculates deviation of concentration of alcohol detected by the detection modules, determines that the reliability is normal when the deviation is within a predetermined range, and calculates the concentration of alcohol of the expiration gas by taking an average of the concentration of alcohol detected from the detection modules when the reliability is determined to be normal. [Reference numerals] (105,106) Pressure sensor; (109) Inhalation device; (121,122) LPF analysor; (125) Micom |
