CALIBRATION METHODOLOGY OF A F101-F201 GLOBAL FLOW PROBE USING A LASER DOPPLER ANEMOMETER

Abstract: Random uncertainties caused by the environment conditions, system operator as well as the measurement system itself, are factors that interfere in measurements. Concerning the uncertainty generated by the instrument interference, the use of non-invasive instruments, which are not introduced in the environment, is supported. However, these instruments are generally very costly and require specific work conditions which disable their use in certain tests, mainly in the field test. With the objective of correcting the interference caused by the invasive measurement system, its calibration is done using only non-invasive measurement systems as standards. This paper presents the calibration methodology of an invasive flow probe, the F101-F201 Global Flow Probe, with the required correction of the instrument interference on the true velocity measurement in the system. This methodology can also be applied on the calibration of other invasive type velocity measurement systems