ALCOHOL CONTENT SENSOR BASED ON AIR BLOWING METHOD AND SMART DEVICE Russian patent published in 2024 - IPC G01N27/407 

FIELD: measurement.

SUBSTANCE: alcohol content sensor comprises an alcohol content measurement module, an air pressure measurement module (11), MCU processor (12), circuit substrate (10) and housing (30) covering circuit substrate (10); alcohol content measurement module transmits a signal of its concentration to MCU processor (12) by means of the sampling and amplification circuit module, the air pressure measurement module (11) and MCU processor (12) are connected to each other and transmit the air pressure signal, and MCU processor (12) after processing the concentration signal and the air pressure signal outputs the alcohol concentration value. Alcohol content measurement module and the air pressure measurement module (11) are built into housing (30), and due to the fact that the two modules are communicated with the environment, it is possible to determine in real time whether insufficient air is blown out during the measurement, wherein in accordance with the air blowing situation by the user, the user is prompted to repeatedly blow air, or the actual concentration is displayed in real time, and the authenticity and accuracy of the measurement can be guaranteed while reducing the size of the alcohol content sensor.

EFFECT: invention discloses an alcohol content sensor based on an air blowing method and an intelligent device.

12 cl, 6 dwg