BREATH ALCOHOL TESTER V.2

Advisor

# Name
1Acting Capt.Roongroj Utamartra
2Mrs.Porntip Hongwiangjan
3Mr.Nantakarn Imphong

Inventor

# Name
1Ms.Aminta Thongyoy
2Mr.Jarernpong Rattanawin
3Ms.Orraya Kudkhuntod

MINBURI TECHNICAL COLLEGE

Type of : English Presentation Innovation and Invention Based on Research Methodology Contest

Abstract

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.