Monitoring and compensating for temperature-related error in an electrochemical sensor
US8000918B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2008 |
| Grant date | Aug 16, 2011 |
| Priority date | — |
| Expiry date | Sep 5, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2560/0252
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for compensating for a temperature-related error in an electrochemical sensor without using separate sources of temperature measurement by measuring sensor current, temporarily lowering sensor voltage to a first level below a reaction-sustaining threshold, measuring a first offset current, adjusting sensor voltage to a second level below the threshold, measuring a second offset current, calculating a difference between the offset currents, deriving a temperature compensation value from the difference based on empirical data, and adding the value to the measured sensor current. A computer system may execute the method as an algorithm stored in memory, provide automatic control of the sensor, and provide continuous display of corrected output values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.