Patent ID: 6287519
Filing Date: 2001-09-11
Classification: G01N,Y10T

Abstract:
A hand-held vehicle exhaust analyzer comprising:a polymeric housing of a size to be held in a user's hands, the housing having an inlet receiving exhaust emitted from a vehicle under test;a sensor assembly disposed in the housing and receiving the exhaust emitted from the vehicle through the inlet, the sensor assembly operating at ambient temperature and utilizing a sensor infrared beam and a reference infrared beam to determine content of a plurality of gases in the exhaust emitted from the vehicle under test;a control system operatively coupled to the sensor assembly in the housing to receive and interpret results of operations of the sensor assembly and to convert the result into vehicle diagnostic values;a power supplying apparatus in the housing for delivering power throughout the vehicle gas analyzer; andwherein the housing and all components disposed in the housing have a combined weight of no greater than about five pounds.