Abstract
In this paper we present two fibre optic based laser anemometers for flow measurement inside turbomachinery. A two-spot anemometer is described that has been utilised to measure flows in an axial compressor at velocities up to 40 ms-1. The second instrument is a novel 3D laser Doppler velocimeter that uses a technique of oblique backscatter to allow sequential measurement of the three orthogonal velocity components. This instrument is shown to produce 3D measurements in a centrifugal compressor operating at up to 30 000 rpm with velocities up to 100 ms-1. © 1992.
| Original language | English |
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| Pages (from-to) | 193-205 |
| Number of pages | 13 |
| Journal | Optics and Lasers in Engineering |
| Volume | 16 |
| Issue number | 2-3 |
| Publication status | Published - 1992 |