Method and apparatus for determining emission measurement accuracy
US5717130A · kind A · utility
2Cited by
1References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 23, 1996 |
| Grant date | Feb 10, 1998 |
| Priority date | — |
| Expiry date | Aug 23, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/0014
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods and apparatus for determining and assessing the accuracy of exhaust gas measurements using the total emission method is provided which allows for virtually real-time determination of the presence of a source of inaccuracy in the total emission measurement, thereby notifying an operator to interrupt the test prior to its completion to search out the source of the inaccuracy. In accordance with one aspect of the present invention, the measured total hydrocarbons are treated as unburned fuel (C.sub.8 basis) plus burning zone hydrocarbons (C.sub.1 basis).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.