wind tunnels and 1/16 for open Check for details wind tunnel. of estimation of blockage ratio. Check for the details of wind tunnel type being used for anemometer calibration Clause F.5: Data analysis 29 page 61, A linear regression analysis shall Check for the paragraph be carried out on the calibration details of linear 1, line 1 data for the estimation of the regression carried following regression parameters: on the calibration offset, slope, regression coefficient, data. standard uncertainty in the slope and intercept and covariance of the slope and intercept of the wind speed. The wind speed values shall be regressed upon the anemometer outputs. 30 page 61, If the correlation coefficient, r, for Check for paragraph the data is less than 0.99995 then estimation of 2, line 1 the calibration shall be repeated. If correlation coefficient is still insufficiently high, coefficient r, for then either the calibration facility is the calibrated inadequate or the anemometer is data. excessively non-linear and shall not be used. Clause F.6: Uncertainty analysis 31 page 61, The magnitude of the net Check for the paragraph uncertainty shall be assessed assessment of 3, line 4 statistically and shall take account uncertainty in the of: - flow speed measurement calibrated data. uncertainty - frequency Check against the measurements - wind tunnel list of calibration including blockage uncertainties in effect - flow variability in the vicinity the estimation. of the anemometer. Clause F.7: Reporting format 32 page 61, The relevant documentation Check for all the shall paragraph provide information documentations on the 4, line 1 procedure followed necessary and the facility to used for understand calibrating the the anemometers (test anemometer report on the calibration campaign) calibration and on the individual anemometer process. calibration (anemometer calibration report). Check for the details of all the procedures
wind tunnels and 1/16 for open wind tunnel. Check for details of estimation of blockage ratio. Check for the details of wind tunnel type being used for anemometer calibration Clause F.5: Data analysis 29 page 61, paragraph 1, line 1 A linear regression analysis shall be carried out on the calibration data for the estimation of the following regression parameters: offset, slope, regression coefficient, standard uncertainty in the slope and intercept and covariance of the slope and intercept of the wind speed. The wind speed values shall be regressed upon the anemometer outputs. Check for the details of linear regression carried on the calibration data. 30 page 61, paragraph 2, line 1 If the correlation coefficient, r, for the data is less than 0.99995 then the calibration shall be repeated. If coefficient is still insufficiently high, then either the calibration facility is inadequate or the anemometer is excessively non-linear and shall not be used. Check for estimation of correlation coefficient r, for the calibrated data. Clause F.6: Uncertainty analysis 31 page 61, paragraph 3, line 4 The magnitude of the net uncertainty shall be assessed statistically and shall take account of: - flow speed measurement uncertainty - frequency measurements - wind tunnel calibration including blockage effect - flow variability in the vicinity of the anemometer. Check for the assessment of uncertainty in the calibrated data. Check against the list of uncertainties in the estimation. Clause F.7: Reporting format 32 page 61, paragraph 4, line 1 The relevant documentation shall provide information on the procedure followed and the facility used for calibrating the anemometers (test report on the calibration campaign) and on the individual anemometer calibration (anemometer calibration report). Check for all the documentations necessary to understand the anemometer calibration process. Check for the details of all the procedures
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