Alcohol concentration sensor

Details Alcohol concentration sensor Alcohol concentration sensor

G - Physics

01

N

73/0.5

G01N 31/12 (2006.01) G01N 9/04 (2006.01) G01N 25/22 (2006.01) G01N 27/06 (2006.01)

Patent

CA 2001402

An alcohol concentration sensor provided a tube shaped means (21) of which the top end (211) is closed with a top end closing means (20) and of which the bottom end (212) is remained open, a gas supply tube means (22) which penetrates the top end closing means (20) to extend down into the tube shaped means (21), which is provided an air blower means (24), and of which the lower end (221) termi- nates slightly upper than the bottom end (212) of the tube shaped means (21), thereby the lower end (221) of the gas supply tube means (22) is soaked into a liquid (10) con- taining water and alcohol, of which the alcohol concentra- tion is required to be determined, deeply sufficient to allow the air bubbles flown out of the gas supply tube means (22) into the liquid (10) to absorb sufficient quan- tity of alcohol contained in the liquid (10), whenever the tube shaped means (21) is soaked in the liquid (10), a gas drawing out means (26) which penetrates the top end closing means (20), a gas temperature sensing means (27) which is connected with the gas drawing out means (26) for deter- mining the temperature of the gas in the neighborhood of a gas oxidization means for oxidizing the alcohol evaporated from the liquid (10), a temperature/alcohol concentration calibration means for calibrating the temperature of the gas toward the corresponding alcohol concentration, and an alcohol concentration output means for outputting the alcohol concentration determined by the temperature/alcohol concentration calibration means.

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