Making multi-layer micro-wire structure
US-9226411-B2 · Dec 29, 2015 · US
Electrode configuration for LiMCA
US8928306B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8928306-B2 |
| Application number | US-29025708-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 29, 2008 |
| Priority date | Mar 4, 2004 |
| Publication date | Jan 6, 2015 |
| Grant date | Jan 6, 2015 |
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Abstract
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The present invention provides a method and apparatus for reducing electromagnetic noise pick up in a Liquid Metal Cleanliness Analyzer (LiMCA), used to detect and measure particles in molten metal. An first electrode inserted in the molten metal is electrically insulated from second and third electrodes, also inserted in the molten metal. Molten metal and particles pass between the first electrode and the second and third electrodes through a passage in the electrical insulation. The second and third electrodes have a configuration with respect to the first electrode sufficient to establish symmetrical current loops between the first electrode and the second and third electrodes when a current is supplied to the second and third electrodes. The current is supplied from an ultra-capacitor. Electromagnetic noise in the symmetrical current loops is detected and is added in opposition to reduce the amplitude of the electromagnetic noise.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method of making measurements in a Liquid Metal Cleanliness Analyzer (LiMCA), having a body of molten metal containing particles, electrically insulating wall means having a passage formed therein for passage of the molten metal, a first electrode positioned on one side of the wall means and at least one additional electrode inserted in the molten metal on an opposite side of the wall means to the first electrode and voltage recording means connected…
Assignees
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Classifications
- G01N27/403Primary
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
- G01N15/02Primary
Physics · mapped topic
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Frequently asked questions
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- What does patent US8928306B2 cover?
- The present invention provides a method and apparatus for reducing electromagnetic noise pick up in a Liquid Metal Cleanliness Analyzer (LiMCA), used to detect and measure particles in molten metal. An first electrode inserted in the molten metal is electrically insulated from second and third electrodes, also inserted in the molten metal. Molten metal and particles pass between the first elect…
- Who is the assignee on this patent?
- Marcotte Jacques, Slusarenko Yuhil, Novelis Inc
- What technology area does this patent fall under?
- Primary CPC classification G01N27/403. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jan 06 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).