Apparatus and associated methods
US8823396B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 11, 2013 |
| Grant date | Sep 2, 2014 |
| Priority date | — |
| Expiry date | Jan 11, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2027/222
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus including a sensor array, configured to produce an array output value in response to an environmental stimulus, and a controller, the sensor array including a plurality of sensors and a common output terminal connected to the respective outputs of the sensors, each sensor having first and second electrodes configured to output a respective sensor output value in a particular environment based on the areas of the first and second electrodes and/or the spacing therebetween, the controller configured to control which of the sensors are connected to the common output terminal using respective switches to vary the effective area and/or spacing of the sensor array such that the array output value at the common output terminal, based on the contribution of the respective sensor output values of the connected sensors, is held at a reference value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.