Title :
System-theoretical analysis and modeling of pulsed thermal Time-of-Flight flow sensor
Author :
Ecin, O. ; Engelien, E. ; Viga, R. ; Hosticka, B.J. ; Grabmaier, A.
Author_Institution :
Dept. of Electron. Components & Circuits, Univ. Duisburg-Essen, Duisburg, Germany
Abstract :
A system-theoretical model of an air flow sensor based on the principle of pulsed thermal Time-of-Flight (TTOF) is described. The region of interest (ROI) in the pipe flow is regarded as a linear time-invariant (LTI) system with an input and output signal. Based on the experimental results the simulation model is created and applied for analysis of different input signals and system´s responses with respect to the flow velocity. Experimental and simulated results are compared in an air flow velocity range between 0.1 m/s and 0.7 m/s.
Keywords :
flow sensors; linear systems; pipe flow; pulsatile flow; temperature sensors; velocity measurement; air flow sensor; flow velocity; linear time-invariant system; pipe flow; pulsed thermal sensor; region of interest; system-theoretical analysis; time-of-flight sensor; Atmospheric modeling; Damping; Fluid flow measurement; Fluids; Heating; Thermal sensors; Velocity measurement; TTOF; flow sensor modeling; input signal forms; second-order low-pass filter; thermal impulse response;
Conference_Titel :
Ph.D. Research in Microelectronics and Electronics (PRIME), 2011 7th Conference on
Conference_Location :
Trento
Print_ISBN :
978-1-4244-9138-4
Electronic_ISBN :
978-1-4244-9136-0
DOI :
10.1109/PRIME.2011.5966239
