EXPERIMENTAL INVESTIGATION TO CALIBRATE PITOT-TUBE BY LDA |
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| Cui Lishui, Hu Heming, Li Chunhui |
- Abstract:
- Pitot -tube is widely used to measure the air velocity. The coefficient must be calibrated to correct the measurement result. LDA (laser Doppler anemometer) can be applied to calibrate Pitot-tube to acquire this coefficient. During the process, the calibration result is influenced by the flow round the probe of Pitot-tube and air velocity distribution deviation in long axis. The experiments are conducted to evaluate or correct this influence. The results show (1) the calibration results will be different due to the interference of probe mounted in flow field. So, the proper measurement position for LDA is required to reduce the influence as much as possible. (2) The air velocity distribution deviation that is inherent along axis also influences the result of calibration coefficient. This influence can be corrected by actual measurement.
- Keywords:
- air velocity, calibration, Pitot -tube, LDA
- Download:
- IMEKO-TC9-2013-055.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC9
- Event name:
- FLOMEKO 2013
- Title:
16th International Flow Measurement Conference
- Place:
- Paris, FRANCE
- Time:
- 24 September 2013 - 26 September 2013