Laser-Doppler Velocimetry (LDV)
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The LDV method is non invasive. The flow being investigated is not disturbed by a probe. So flow measurements are possible in situations not suitable for conventional techniques, e.g. in internal combustion engines, or over long distances.
The determination of flow speeds is based on simple geometric correlations. A drift is not possible. So calibration measurements are not necessary.
The direction of the flow speed components being measured is determined by the optical arrangement.
The LDV technique makes a very high spatial and temporal resolution possible.
Special optical setups provide the possibility to record two or three velocity components simultaneously.
KeywordsFrequency Shift Measuring Volume Flow Speed Doppler Frequency Fringe Pattern
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- ]Durst, F.; Melling, A.; Whitelaw, J.H.: Principles and Practice of Laser — Doppler Anemometry. London: Academic Press 1981Google Scholar
- DANTEC 55X Modular Optics — Instruction ManualGoogle Scholar
- ]Ruck, B.: Lasermethoden in der Strömungstechnik. Stuttgart: AT-Fachverlag 1990Google Scholar