Differential scanning calorimeter
US5842788A · kind A · utility
29Cited by
13References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 1997 |
| Grant date | Dec 1, 1998 |
| Priority date | — |
| Expiry date | Oct 31, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N25/4866
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A Differential Scanning Calorimeter (DSC) which has constant calorimetric sensitivity over its entire range of operating temperatures from -200.degree. C. to 540.degree. C. The DSC sensor consists of a pair of thin-film Resistance Temperature Detectors (RTDs) which are used to sense the temperature of a sample and the temperature difference between the sample and an inert reference. The RTDs are supplied with an excitation current which varies according to the temperature of the reference to achieve constant calorimetric sensitivity, independent of the operating temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.