PROPAGATION OF UNCERTAINTIES IN THE CALIBRATION CURVE FITTING OF SINGLE NORMAL HOT-WIRE ANEMOMETRY PROBES |
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| L.A. Santos, M.L.C.C. Reis, O.A.F. Mello, L.G. Mezzalira |
- Abstract:
- The uncertainty propagation in the calibration of single normal hot-wire anemometry probes used in the constant temperature mode is discussed in this paper. The two most used forms of calibration curve (the fourth order polynomial and the King’s law) are considered. The presented discussion is also useful for probes which are more complex than the single normal, such as the single yawed, the X, the V-shaped, the triple- and the four-wire probes. The uncertainties discussed here are important in mean flow velocity, and the discussion developed provides a notable opportunity to review some important aspects of the uncertainty propagation in any calibration involving curve fitting.
- Keywords:
- calibration uncertainty, hot-wire anemometry, curve fitting
- Download:
- PWC-2006-TC21-021u.pdf
- DOI:
- -
- Event details
- Event name:
- XVIII IMEKO World Congress
- Title:
Metrology for a Sustainable Development
- Place:
- Rio de Janeiro, BRAZIL
- Time:
- 17 September 2006 - 22 September 2006