Video flowmeter
- Livermore, CA
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 (10) containing entrained particles (12) is formed and positioned by a rod optic lens assembly (31) on the raster area of a low-light level television camera (20). The particles (12) are illuminated by light transmitted through a bundle of glass fibers (32) surrounding the rod optic lens assembly (31). 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 (40). 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 (10).
- Research Organization:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA
- DOE Contract Number:
- W-7405-ENG-48
- Assignee:
- Lord, David E. (Livermore, CA);Carter, Gary W. (Livermore, CA);Petrini, Richard R. (Livermore, CA)
- Patent Number(s):
- US 4396943
- OSTI ID:
- 864646
- Country of Publication:
- United States
- Language:
- English
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Video flowmeter
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10
12
20
31
32
40
assembly
below
bundle
calibrated
camera
capable
containing
containing entrained
described
determinable
determination
displayed
entrained
entrained particles
fibers
flow
flow rate
flowmeter
fluid
form
formed
glass
glass fiber
glass fibers
illuminated
image
images
lens
lens assembly
level
light
light level
light transmitted
line
line scan
locus
low-light
nature
optic
optic lens
origin
particle
particle image
particle images
particles
pattern
picture
positioned
positions
quantitative
raster
rate
region
rod
rod optic
scanning
screen
specifying
speed
speeds
surrounding
television
television camera
time
transmitted
value
video
video flowmeter
volumetric
volumetric flow