Video flowmeter
A video flowmeter is described that is capable of specifying flow nature and pattern and, at the same time, the quantitative value of the rate of volumetric flow. An image of a determinable volumetric region within a fluid containing entrained particles is formed and positioned by a rod optic lens assembly on the raster area of a low-light level television camera. The particles are illuminated by light transmitted through a bundle of glass fibers surrounding the rod optic lens assembly. Only particle images having speeds on the raster area below the raster line scanning speed may be used to form a video picture which is displayed on a video screen. The flowmeter is calibrated so that the locus of positions of origin of the video picture gives a determination of the volumetric flow rate of the fluid. 4 figs.
- DOE Contract Number:
- W-7405-ENG-48
- Assignee:
- PTO; EDB-94-125594
- Patent Number(s):
- US 4396943; A
- Application Number:
- PPN: US 6-272228
- OSTI ID:
- 7146172
- Resource Relation:
- Patent File Date: 10 Jun 1981
- Country of Publication:
- United States
- Language:
- English
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Video flowmeter
Flow observation by rod lens and low-light video (videotape script: January 4, 1977)