Commissariat a L'energie Atomique

Compagnie Generale Des Matieres Nucleaires

Compagnie Generale Des Matieres

Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Guillaume Mehlman

Christian Ladirat

Patrice B Roux

Jean-Louis Maurin

Benoît Nicolazo De Barmon

Michel Talvard

Pascal Bouland

Fran&ccedil;ois Meline

Device for detecting electro-magnetically the level of a material which is conductive, or made conductive, particularly molten glass. The device comprises an inductor () creating an alternating current in the material and surrounding the container () of the material, at least one magnetic field sensor () in the zone delimited by the inductor, this sensor comprising a pair of transductors making it possible to detect the partial differential, along the axis of the inductor, of the radial component of the field, means () of demodulating the signals provided by the sensor, demodulation occurring with a phase shift of approximately &#x3c0;/2 relative to the current supplying the inductor, and means () for processing the signals provided by the demodulation means and for providing a signal indicating that the sensor level has been reached by the material.

Device for detecting electromagnetically the level of a material which is conductive, or made conductive, particularly molten glass

A measurement rod for measuring the level of a liquid bath is cooled but is provided with a solid end piece so that the bath cannot solidify in front of the orifice of the measurement gas injected in the bath, for which the pressure is being measured.

Stick for measuring the level of a molten metal bath

The present invention relates to a method of confining pollution generated in the top volume and/or in the bottom volume of an enclosure filled with a fluid, i.e. either a gas, which is in general air, or a liquid, which is in general water, the method confining the pollution by thermal stratification. In said method the mean temperature of said top volume is maintained higher than the mean temperature of said bottom volume by an amount that is sufficient to ensure that said two volumes are separated by a turbulent intermediate zone of narrow width, referred to as the &ldquo;mixing zone&rdquo;, within which a steep temperature gradient is maintained; said intermediate zone constituting a virtual confinement barrier in a horizontal plane. The present invention also relates to apparatus associated with the method.

Method and apparatus for performing confinement by thermal stratification

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Paris, France

Guillaume Mehlman