skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Video flowmeter

Abstract

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).

Inventors:
 [1];  [1];  [1]
  1. (Livermore, CA)
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
864646
Patent Number(s):
4396943
Assignee:
Lord, David E. (Livermore, CA);Carter, Gary W. (Livermore, CA);Petrini, Richard R. (Livermore, CA) LLNL
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
video; flowmeter; described; capable; specifying; flow; nature; pattern; time; quantitative; value; rate; volumetric; image; determinable; region; fluid; 10; containing; entrained; particles; 12; formed; positioned; rod; optic; lens; assembly; 31; raster; low-light; level; television; camera; 20; illuminated; light; transmitted; bundle; glass; fibers; 32; surrounding; particle; images; speeds; below; line; scanning; speed; form; picture; displayed; screen; 40; calibrated; locus; positions; origin; determination; glass fibers; rod optic; lens assembly; television camera; flow rate; volumetric flow; glass fiber; light transmitted; particle image; particle images; containing entrained; optic lens; entrained particles; line scan; video flowmeter; light level; /348/356/

Citation Formats

Lord, David E., Carter, Gary W., and Petrini, Richard R. Video flowmeter. United States: N. p., 1983. Web.
Lord, David E., Carter, Gary W., & Petrini, Richard R. Video flowmeter. United States.
Lord, David E., Carter, Gary W., and Petrini, Richard R. Sat . "Video flowmeter". United States. https://www.osti.gov/servlets/purl/864646.
@article{osti_864646,
title = {Video flowmeter},
author = {Lord, David E. and Carter, Gary W. and Petrini, Richard R.},
abstractNote = {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).},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1983},
month = {1}
}

Patent:

Save / Share: