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Unformatted text preview: . Rotating mechanical devices
a. Cup anemometer
b. Savonius rotor
c. Propeller meter
d. Turbine meter
3. Pitot-static tube (Fig. 6.30)
4. Electromagnetic current meter
5. Hot wires and hot films
6. Laser-doppler anemometer (LDA)
Some of these meters are sketched in Fig. 6.29. | v v Floats or buoyant particles. A simple but effective estimate of flow velocity can be
found from visible particles entrained in the flow. Examples include flakes on the surface of a channel flow, small neutrally buoyant spheres mixed with a liquid, or hydro- | e-Text Main Menu | Textbook Table of Contents | Study Guide 6.10 Fluid Meters ( a) ( b) 387 ( c) Plated film:
wire: (d) ( e) (f )
Display Fig. 6.29 Eight common velocity
meters: (a) three-cup anemometer;
(b) Savonius rotor; (c) turbine
mounted in a duct; (d) free-propeller meter; (e) hot-wire
anemometer; (f) hot-film anemometer; (g) pitot-static tube; (h) laserdoppler anemometer. θ
( g) Flow Receiving Photo
optics detector ( h) gen...
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This note was uploaded on 10/27/2009 for the course MAE 101a taught by Professor Sakar during the Spring '08 term at UCSD.
- Spring '08