Thermal-based flow sensing apparatuses and methods for high-performance liquid chromatography
US8943887B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 16, 2010 |
| Grant date | Feb 3, 2015 |
| Priority date | — |
| Expiry date | Oct 4, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/324
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
One aspect of the invention provides a flow sensing apparatus including: a fluid channel that allows a fluid to flow in a first direction; a first thermoelectric sensing element arranged at a first position along the fluid channel such that it senses a temperature of the fluid; a second thermoelectric sensing element arranged at a second position along the fluid channel and separated from the first sensing element by a predetermined distance along the fluid channel; and a heating element arranged between the first and second thermoelectric sensing elements, the heating element being equally spaced from the first and second thermoelectric sensing elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.