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Research on temperature compensation of the air-flow sensor based on data fusion theory

Meng Wang, Da Shi, Xiaojuan Chen

Open publisher page 1 citations

Abstract

Sensing principle of hot wire air-flow sensor is demonstrated.The mathematic model of the sensor is provided.The theory is presented that temperature compensation is achieved through data fusion algorithm.With this kind of sensor,the air-flow and temperature can be measured simultaneously.By using linear regression analysis method,the relation between the airflow and the output of the sensor is established,which effectively eliminates the influence due to the variation of temperature and improves the precision of the sensor.The method to accompolish the system and the experimental data are presented.

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What this paper is about

Sensing principle of hot wire air-flow sensor is demonstrated.The mathematic model of the sensor is provided.The theory is presented that temperature compensation is achieved through data fusion algorithm.With this kind of sensor,the air-flow and temperature can be measured simultaneously.By using linear regression analysis method,the relation between the airflow and the output of the sensor is established,which effectively eliminates the influence due to the variation of temperature and improves the precision of the sensor.The method to accompolish the system and the experimental data are presented.

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Available abstract

Sensing principle of hot wire air-flow sensor is demonstrated.The mathematic model of the sensor is provided.The theory is presented that temperature compensation is achieved through data fusion algorithm.With this kind of sensor,the air-flow and temperature can be measured simultaneously.By using linear regression analysis method,the relation between the airflow and the output of the sensor is established,which effectively eliminates the influence due to the variation of temperature and improves the precision of the sensor.The method to accompolish the system and the experimental data are presented.

Key concepts: Compensation (psychology), Airflow, Sensor fusion, Experimental data, Flow sensor, Control theory (sociology), Air temperature, Flow (mathematics)

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