Thanks to an uncertainty analysis, the demonstration has been made that the APT method can, over a wide range of conditions, outperform a pitot tube, but can't do it when the damper is nearly open. Tests have confirmed the results of the uncertainty analysis.
Using the torque characteristics of dampers to measure airflow, Part 2 : analysis and testing
![](https://www.aivc.org/sites/default/files/default_images/default_image_5.png)
Year:
2004
Bibliographic info:
HVAC&R Research, Vol 10, n° 1, January 2004, pp 65-72, 7 Fig., 6 Ref.