The contaminants in the exhaust gas emissions from a motor vehicle such as carbon monoxide (CO) and hydrocarbons (HC) are analyzed and the concentration of the contaminants together with other pertinent data is displayed in a digital manner. The exhaust gas emissions are fed into a sample cell contained...http://www.google.fr/patents/US3958122?utm_source=gb-gplus-shareBrevet US3958122 - Exhaust gas analyzer having pressure and temperature compensation
Exhaust gas analyzer having pressure and temperature compensation
