A drunkometer sensing malfunction of alcholsensor

摘要

The present invention provides a fuel cell type of sensor malfunction of the pump in the breathalyzer detects alcohol concentration provided By confirming the error in the measurement will detect a malfunction of the alcohol sensor that can more accurately measure the concentration of alcohol on the possible breathalyzer. In ; According to the invention, the exhalation inlet tube to measure the concentration of alcohol contained in the breath of the subject is introduced through 31 and displaying the drinking external meter, corresponding to the alcohol concentration electrical the catalyst plate 44 is provided on the built-in sensor body 41 and a sensor module comprising the detector which detects the signal 45, 40, the sensor body 41, a solenoid or the drive motor for generating a signal is operated by the exhalation sucked into the sensor body 41 are a pump 43 and is provided on one side of the pump 43, a microphone to sense the operating sound of the pump (43) (50), the a microphone (50) comprises a microcomputer (60) for displaying on the display unit 70 receives the output of the operation sound from the sensed, when the microcomputer in the operation corresponding to the reference value more than 60 um is detected, the pump 43 the normal operation is displayed on the display unit 70, a malfunction of the alcohol sensor, characterized in that displayed on the operation error of the pump 43. The display unit 70 is detected when the operating sound of the pump (43) corresponding to less than the reference value The breathalyzer detects a possible offer.