System and methods for monitoring a thermoelectric heating and cooling device
US8271230B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2009 |
| Grant date | Sep 18, 2012 |
| Priority date | — |
| Expiry date | Dec 26, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2321/021
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Disclosed herein are methods for monitoring a thermoelectric heating and cooling device (103, 203, 303) of a system (100, 200, 300) for cycling liquid reaction mixtures through a series of temperature excursions, and such systems adapted to perform these methods. A first quantity being either an electric current or an electric voltage is applied to the heating and cooling device (103, 203) or a portion (314) thereof (303), and a second quantity being either the non-selected first quantity or temperature is measured to obtain a first test value. The selected first quantity is applied to another thermoelectric heating and cooling device (104, 204) or another portion (315) of the first device (303), and the second quantity is measured to obtain a second test value. Comparison of the first and second test values yields a monitoring value which is compared with a pre-defined threshold value to obtain a monitoring result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.