High Linear Range Humidity Sensor

Circuits and methods for extending the linear range of IC-based environmental sensors. The IC-based environmental sensors may sense environmental characteristic such as humidity levels, the presence and/or concentration of specific chemicals, and/or the presence and/or concentration of specific biol...

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1. Verfasser:	Saraf, Vivek
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Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS SEMICONDUCTOR DEVICES TESTING
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creator	Saraf, Vivek
description	Circuits and methods for extending the linear range of IC-based environmental sensors. The IC-based environmental sensors may sense environmental characteristic such as humidity levels, the presence and/or concentration of specific chemicals, and/or the presence and/or concentration of specific biological molecules. The linearity of an environmental sensor can be extended by heating the sensor within a range of non-linear operation to artificially induce the sensor to operate within its linear range, and then accurately measuring, either directly or indirectly, the temperature rise caused by such heating. A correction factor is then determined based on the measured temperature rise that is combined with measurements from the sensor while operating within its non-linear range in order to generate an accurate estimate of an actual environmental characteristic.
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title	High Linear Range Humidity Sensor
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