Title :
VHDL-AMS modeling of an integrated gas flow sensor readout channel with pressure compensation.
Author :
Lazzerini, G.M. ; Dei, M. ; Bruschi, P. ; Piotto, M.
Author_Institution :
Univ. di Pisa, Pisa
Abstract :
An analog circuit for the compensation of pressure effects in thermal flow meters is presented. The result is obtained by modulating the power delivered to the heater by means of a feedback loop that senses the pressure variations with no need of an additional pressure sensor. A possible system architecture is proposed and the effectiveness of the method is demonstrated by means of VHDL-AMS simulations.
Keywords :
channel flow; flow sensors; flowmeters; gas sensors; hardware description languages; mechanical engineering computing; VHDL-AMS modeling; analog circuit; feedback loop; integrated gas flow sensor; pressure compensation; pressure sensor; pressure variations; readout channel; thermal flow meters; Analog circuits; Circuit simulation; Feedback loop; Fluid flow; Gas detectors; Pressure effects; Silicon; Temperature sensors; Thermal sensors; Voltage;
Conference_Titel :
Research in Microelectronics and Electronics Conference, 2007. PRIME 2007. Ph.D.
Conference_Location :
Bordeaux
Print_ISBN :
978-1-4244-1000-2
Electronic_ISBN :
978-1-4244-1001-9
DOI :
10.1109/RME.2007.4401831
