Method and apparatus for measuring emissivity
US4408878A · kind A · utility
13Cited by
1References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 16, 1980 |
| Grant date | Oct 11, 1983 |
| Priority date | — |
| Expiry date | Dec 16, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J5/0003
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensor unit comprising two pyrometers arranged in respective chambers disposed side-by-side and open at one end, one chamber being substantially totally reflecting and the other substantially totally absorbing. Periodically, the unit is advanced to the immediate proximity of the product, the signals from the pyrometers are received after the response time of the pyrometers has elapsed, and then the unit is withdrawn to its initial position. The signals from the pyrometers are processed so as to provide a signal representing the emissivity of the product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.