Salt concentration measurement device

Presentation

The new process developed by the  LMOPS laboratory of the University of Lorraine enables the measurement of salt concentration in a product containing at least a portion of water, with a Raman spectrometer. This technique does not require to sample or touch the product, whatever the product external conditions.

Different salts can be measured : chlorides, nitrates, sulfates, phosphates, acetates, formates, urea,…, or a combination of them.

Competitive advantages

• Rapid (a few s), non contact measurements are possible;
• Low analytical costs (simultaneous measurement of different salts);
• Low maintenance costs;
• Insensitivity to suspended matter;
• Possibility to perform long range measurements on several samples in a row;
• Precision: of the order of a mg/L.
  

Applications/Markets

• Fabrication de préformes ou de pièces prêtes à être brasées;
• Brasage de tuyauterie simplifiée et qualité assurée;
• Assemblage de pièces en cuivre.
  

Intellectual property

• Patent  FR2937421;
• Collaboration sought: license for device manufacturing and distribution.

Laboratory

Laboratoire Matériaux Optiques, Photoniques et Systèmes (LMOPS)