Self-calibrating ion meter
US9304103B2 · kind B2 · utility
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1References
12Claims
0Family size
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Key dates
| Filing date | Sep 27, 2012 |
| Grant date | Apr 5, 2016 |
| Priority date | — |
| Expiry date | Feb 5, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/4148
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An ion meter is calibrated by providing two ISFETS with different areas, where the two gate areas are used to calibrate the two ISFETS with respect to one another. The use of two ISFET gates that can be calibrated with respect to one another eliminates the need for an ion meter to be recalibrated before every use, and allows the ion meter to measure the concentration in the solution over an extended period of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.