The proposed project is to study the performance of several low-cost gas sensors for alcohol detection. The sensor characteristics to be studied include sensitivity, interference, and stability, etc. The best sensor will be chosen to incorporate with a simple electronic module. The device will be equipped with an audio alarm and a relay output. In case the alcohol content exceeds a preset level, the device will sound the alarm and, at the same time, disarm the ignition switch of the automobile.
Anticipated Results: If the proposed alcohol alarm is developed, then a low-cost commercial alcohol alarm could be manufactured. This device, when mounted near the driver's seat, will monitor the alcohol content and disarm the ignition switch In case the alcohol content exceeds preset safety level. Great potentials in vehicle applications are anticipated.
