Measurement of average density and relative volumes in a dispersed two-phase fluid
An apparatus and a method are disclosed for measuring the average density and relative volumes in an essentially transparent, dispersed two-phase fluid. A laser beam with a diameter no greater than 1% of the diameter of the bubbles, droplets, or particles of the dispersed phase is directed onto a diffraction grating. A single-order component of the diffracted beam is directed through the two-phase fluid and its refraction is measured. Preferably, the refracted beam exiting the fluid is incident upon a optical filter with linearly varying optical density and the intensity of the filtered beam is measured. The invention can be combined with other laser-based measurement systems, e.g., laser doppler anemometry.
- Research Organization:
- Knolls Atomic Power Lab., Schenectady, NY (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC12-76SN00052
- Assignee:
- Dept. of Energy
- Patent Number(s):
- PATENTS-US-A7629961
- Application Number:
- ON: DE92015807
- OSTI ID:
- 10156089
- Resource Relation:
- Other Information: PBD: 19 Dec 1990
- Country of Publication:
- United States
- Language:
- English
Similar Records
Measurement of average density and relative volumes in a dispersed two-phase fluid
Fiber optic diffraction grating maker