Optimizing rate of colour change of a breathalyzer

• Main Author: Lim, Yi Siong.
• Other Authors: Lim Chu Sing
• Format: Final Year Project
• Language: English
• Published: 2010
• Subjects: DRNTU::Engineering::Mechanical engineering::Control engineering
• Online Access: http://hdl.handle.net/10356/40558
• Institution: Nanyang Technological University

The principle of the measurement of a breathalyzer is based on the following chemical reaction: During this reaction, the reddish-orange dichromate ion changes colour to green chromium ion when it reacts with alcohol. The degree of the colour change is directly related to the level of alcohol use...