Abstract
We present a novel interferometric sensor based on the laser Doppler technique as well as appropriate concepts for signal processing. The sensor allows the measurement of spatially resolved velocity profiles inside laminar and turbulent flows with micrometer resolution. Therefore it is well suited for research in turbulence, micro fluidics, and flow rate measurement. The combination of two such profile sensors enables to measure all three velocity components within a two-dimensional area without the use of a camera. Compared to image processing methods the proposed principle achieves a lower measurement uncertainty of the velocity.
| Translated title of the contribution | Interferometric laser doppler field sensor for the measurement of the velocity distribution of complex flows |
|---|---|
| Original language | German |
| Pages (from-to) | 224-234 |
| Number of pages | 11 |
| Journal | Technisches Messen |
| Volume | 74 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2007 Apr |
| Externally published | Yes |
Keywords
- Frequency division multiplexing
- Laser doppler anemometry
- Signal recognition
- Turbulent flows
- Velocity profile
- Wavelength division multiplexing
ASJC Scopus subject areas
- Instrumentation
- Electrical and Electronic Engineering