Study of Interferences for ULEV-CVS Measurement, Related to the Complete Measuring System, Discussion of Error Sources, Cross-Sensitivity and Adsorption AVL List GmbH

Format:

Book

Conference/Event

Author/Creator:

Schiefer, E., author.

Conference Name:

SAE 2000 World Congress (2000-03-06 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2000

Summary:

Bag emission measurements on Ultra Low Emission Vehicles require measurement sensitivities in the 1 ppm range for HC and NOx and measurement resolutions well below this to obtain sufficient accuracy and repeatability. Additionally, an analysis of the C2 to C12 components is required. In these emission ranges, adsorption, desorption, diffusion and chemical reaction processes may produce significant effects to the measuring values.Therefore, improvements are necessary to avoid this as far as possible. However, for physical reasons these effects cannot be eliminated completely.For example:Problems resulting from the physical and chemical effects and provisions to minimize the influences to the measuring accuracy and system stability are discussed. This includes contamination check procedures and possibilities for measuring and correcting offset or drift effects caused by these phenomena

Notes:

Vendor supplied data

Publisher Number:

2000-01-0796

Access Restriction:

Restricted for use by site license