Polarimeter
US6717665B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2002 |
| Grant date | Apr 6, 2004 |
| Priority date | — |
| Expiry date | Jun 4, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/0332
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sample cell in a polarimeter comprises a thermally conductive body enclosing a substantially cylindrical internal volume with an insulating outer cover which leaves one face exposed for complementarily contacting a temperature controlled base plate so as to keep the sample cell at a predetermined temperature, and a means for positioning the sample cell at a predetermined position such that a measuring light beam longitudinally passes through the sample cell. The water jacket system required for the conventional cylindrical sample cells is eliminated. A cell holder for holding a cylindrical sample cell in a polarimeter comprises a heat transfer element having a concave cylindrical heat transfer surface for complementarily contacting an external cylindrical surface of the cylindrical sample cell so as to keep the sample cell at a predetermined temperature. The heat transfer element is thermally conductive to a thermal electrical conductor element the temperature of which is controllable by an electric current. The cylindrical sample cell is positioned in the light path of the polarized light beam by a cell mount formed by the heat transfer element, or by a pair of flanges resting o…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.