RELATIVE HUMIDITY SENSOR CALIBRATION

RELATIVE HUMIDITY SENSOR CALIBRATION

An integrated humidity and temperature sensor includes a humidity sensor configured to output a signal corresponding to a first humidity value at a first time and a second humidity value at a second time, a temperature sensor configured to output a signal corresponding to a first temperature at the...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: DEMARZIANI, Alberto Luca, BOI, Raffaele, MALCOVATI, Piero, MANGIAROTTI, Stefano, FORNASARI, Andrea, MASCOTTO, Massimo, QUARTIERI, Emanuele
Format: Patent
Sprache:eng
Schlagworte:
CONTROLLING
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
REGULATING
SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
TESTING
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Beschreibung
Zusammenfassung:An integrated humidity and temperature sensor includes a humidity sensor configured to output a signal corresponding to a first humidity value at a first time and a second humidity value at a second time, a temperature sensor configured to output a signal corresponding to a first temperature at the first time and a second temperature at the second time, a heating element configured to raise a temperature of the humidity sensor and the temperature sensor between the first time and the second time, and a processor device configured to determine a drift value of the humidity sensor according to the first and the second temperatures and the first and the second humidity values. The processor device is also configured to adjust the humidity sensor by the drift value. Adjustment of the humidity sensor can be a shift of an output of the humidity sensor by the drift value.