BREATH ALCOHOL TESTER V.2
|1||Acting Capt.Roongroj Utamartra|
MINBURI TECHNICAL COLLEGE
Type of : English Presentation Innovation and Invention Based on Research Methodology Contest
The purpose of this research was to create and find out the efficiency of the Alcohol Breath Tester. The results revealed that the above instructional package could measure the Blood Alcohol Concentration (BAC), 50 milligram percent ,49 milligram percent ,100 milligram percent and 101 milligram percent respectively. Consequently, the Alcohol Breath Tester (Version 2) had equivalent efficiency to the imported tester, using in the National Police Agency these days.
Features and Benefits
The principle of changing the resistance value within the semiconductor sensor varied with the amount of alcohol was slapped on. And the voltage across the load resistor into the circuit to convert analog signals to digital signals was processed by IC microcontroller, showing the alcohol levels as milligrams percent (mg%) displayed on LCD and Thermal Printer, as well.
The benefits of this device were to decrease the imported costly existing alcohol breath testers including to prevent and alleviate road accidents from drunk drivers considerably.