Modeling of the Response Time of Thermal Flow Sensors
AbstractThis paper introduces a simple theoretical model for the response time of thermal flow sensors. Response time is defined here as the time needed by the sensor output signal to reach 63.2% of amplitude due to a change of fluid flow. This model uses the finite-difference method to solve the heat transfer equations, taking into consideration the transient conduction and convection between the sensor membrane and the surrounding fluid. Program results agree with experimental measurements and explain the response time dependence on the velocity and the sensor geometry. Values of the response time vary from about 5 ms in the case of stagnant flow to 1.5 ms for a flow velocity of 44 m/s. View Full-Text
Scifeed alert for new publicationsNever miss any articles matching your research from any publisher
- Get alerts for new papers matching your research
- Find out the new papers from selected authors
- Updated daily for 49'000+ journals and 6000+ publishers
- Define your Scifeed now
Issa, S.; Sturm, H.; Lang, W. Modeling of the Response Time of Thermal Flow Sensors. Micromachines 2011, 2, 385-393.
Issa S, Sturm H, Lang W. Modeling of the Response Time of Thermal Flow Sensors. Micromachines. 2011; 2(4):385-393.Chicago/Turabian Style
Issa, Safir; Sturm, Hannes; Lang, Walter. 2011. "Modeling of the Response Time of Thermal Flow Sensors." Micromachines 2, no. 4: 385-393.