Title :
A Vehicle Platinum-film Air Flow-Sensor Based on Heat Transfer
Author :
Liang, Guowei ; Li, Changwu ; Wang, Fang
Author_Institution :
Coll. of Metrol. Technol. & Eng., China Jiliang Univ., Hangzhou
Abstract :
Based on the heat transfer principle, a new platinum-film air flow-sensor applied to automobiles was developed. The influence of the sensor structure on the heat transfer was analyzed quantitatively. The temperature characteristics of the sensor were studied under different currents through the sensor and different environmental conditions. The relationship between the outputs of the sensor and gas flowrate was obtained. The Experimental research had been carried out to investigate the temperature-compensation performance of the sensor. The results indicated that the design of the temperature-compensation unit and the response speed of the circuit are the crucial factors influencing outputs of the flow-sensor. The gas flowrate based on the designed platinum-film sensor had been applied to vehicle control system successfully. It can meet the requirement of the practical applications
Keywords :
automobiles; compensation; flow measurement; flow sensors; heat transfer; automobiles; compensating resistance; gas flowrate; heat transfer; platinum-film probe; sensor structure; temperature characteristics; temperature compensation; vehicle control system; vehicle platinum-film air flow-sensor; Automobiles; Circuits; Control systems; Gas detectors; Heat transfer; Sensor phenomena and characterization; Sensor systems; Temperature sensors; Thermal sensors; Vehicles; compensating-resistance; flow-sensor; platinum-film probe; temperature-compensation;
Conference_Titel :
Intelligent Control and Automation, 2006. WCICA 2006. The Sixth World Congress on
Conference_Location :
Dalian
Print_ISBN :
1-4244-0332-4
DOI :
10.1109/WCICA.2006.1713336
