Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1981-06-10
1983-08-02
Britton, Howard
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
356 28, H04N 718
Patent
active
043969437
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).
REFERENCES:
patent: 3457419 (1969-07-01), Rosa
patent: 3547540 (1967-12-01), Shigemoto
patent: 3832059 (1974-08-01), Iten
patent: 3941477 (1976-03-01), Schodl
patent: 4099870 (1978-07-01), Luzzi
patent: 4206999 (1980-06-01), Keller
Lord, Carter and Petrini, "Flow Observation by Rod Lens and Low-Light Video", Lawrence Livermore National Laboratory Report UCRL-52324 (1977).
Carter, "A Unique Rod Lens/Video System Designed to Observe Flow Conditions in Emergency Core Coolant Loops of Pressurized Water Reactors", Lawrence Livermore National Laboratory Report UCRL-52902 (1979).
Berci, "A New Approach in Optics-The Hopkins `Rod-Lens` System", Proceedings of the 15th Annual Technical Symposium of the Society of Photo-Optical Instrumentation Engineers, Sep. 14-17, 1970, Anaheim, Calif.
Lord and Spataro, "Development of a Video Multiphase Flowmeter for On-Line Process Control", Lawrence Livermore National Laboratory Report LLL-PROPOSAL-171 (1980).
Carter Gary W.
Lord David E.
Petrini Richard R.
Besha Richard G.
Britton Howard
Carnahan L. E.
Roth Gary C.
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