Title :
Switched Thermal Anemometer
Author :
Marques, Lino ; Tomaszewski, Grzegorz ; De Almeida, Anibal T.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Coimbra, Coimbra
Abstract :
A new experimental circuit arrangement for a thermal anemometer using a microcontroller as a control unit is described. The device uses a boost-configured self-heated thermistor as a flow detection sensor. Two different operating modes are presented: a sigma-delta constant temperature operating mode and a transient-temperature based operating mode. Both modes are compared and experimental results showing the performance in both cases are presented.
Keywords :
anemometers; flow sensors; microcontrollers; sigma-delta modulation; thermistors; boost-configured self-heated thermistor; circuit arrangement; flow detection sensors; microcontrollers; sigma-delta constant temperature; switched thermal anemometer; Chemical sensors; Circuits; Delta-sigma modulation; Energy consumption; Fluid flow measurement; Mobile robots; Sensor fusion; Temperature sensors; Thermal sensors; Thermistors; Anemometers; air flow measurement; robot sensors; thermal sigma-delta;
Conference_Titel :
Instrumentation and Measurement Technology Conference Proceedings, 2008. IMTC 2008. IEEE
Conference_Location :
Victoria, BC
Print_ISBN :
978-1-4244-1540-3
Electronic_ISBN :
1091-5281
DOI :
10.1109/IMTC.2008.4547333
