The sensor automatically stops the car by analyzing the amount of alcohol in sweat.

US scientists have just introduced a new sensor technology that can cause cars to stop working if it detects that the driver has a blood alcohol concentration exceeding the legal limit.

By analyzing sweat from hands, back of shirt, etc., the system will analyze the amount of alcohol in the sweat and calculate the amount of alcohol in the blood. (Illustrative image)

This sensor system is part of the Driver-Under-Driving Safety System (DADSS), a collaborative research program between representatives from 17 automakers and the U.S. National Highway Traffic Safety Administration (NHTSA).

The system has enormous potential in preventing drunk driving and is a helpful tool in reducing traffic accidents caused by drunk driving.

The system consists of two sensors installed near the steering wheel and dashboard. The first sensor operates using near-infrared spectroscopy technology to detect blood alcohol concentration when the driver touches the dashboard. Through sweat from the hands, back of the shirt, etc., the system analyzes the amount of alcohol in the sweat and calculates the amount of alcohol in the blood.

Alcohol absorbs light at specific wavelengths. By measuring the intensity of this light, the system can accurately determine the blood alcohol concentration. Meanwhile, the breath sensor measures alcohol molecules in the breath. If a blood alcohol concentration exceeding the permissible level of 0.08% is detected, the sensor system will prevent the vehicle from starting.

According to Chinhphu.vn