Method and apparatus for measuring shape of injected substance

Details Method and apparatus for measuring shape of injected substance Method and apparatus for measuring shape of injected substance

1984-11-06

1986-12-09

Lall, Parshotam S.

Boots, shoes, and leggings

364518, 36443105, 358100, 382 52, 431 79, G06F 15626

Patent

active

046284656

ABSTRACT:
The present invention concerns a method of measuring the shape of an injected substance and an automated apparatus for carrying out such a method. In the invention, an optical image of the injected substance, such as atomized fuel mist is projected on a photoelectric converter, and it is converted to video signal. The video signal is sampled at each picture element and the sampled data are memorized in a data memory unit and computed for obtaining a linear luminance distribution function, by determining a line to cut an optical image, then selecting line elements of a fixed length perpendicular to the cut line and computing an average luminance at the individual line elements. The linear luminance distribution function thus obtained stands for a sectional view of a shape of the injected substance mist. And judgment whether the shape is satisfactory or not can be executed on the basis of various shape factors extracted by use of the linear luminance distribution function. The present apparatus can judge, whether, for example, nozzle of a fuel injector is satisfactory or not with high precise.

REFERENCES:
patent: 3736411 (1973-05-01), Berndt
patent: 3988104 (1976-10-01), Barker
patent: 4015240 (1977-03-01), Swonger et al.
patent: 4298945 (1981-11-01), Kyte et al.
patent: 4463437 (1984-07-01), Schenek et al.
patent: 4514818 (1985-04-01), Walker
patent: 4520390 (1985-05-01), Pardes

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