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Thermodynamik und Explosionsschutz (ThEx)

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Titel: Design and production of the electric conductivity cell
Editor: Spitzer, Petra; 3.002, Elektrische Leitfähigkeit, PTB-Braunschweig Sudmeier, Uwe; 3.002, Elektrische Leitfähigkeit, PTB-Braunschweig
Report Typ: PTB-Report
Jahr: 2000
Dokument Nummer: PTB-ThEx-15
Seite(n): 49
ISBN: ISBN 3-89701-661-3 ; ISSN 1434-2391
Zusammenfassung: For measuring the conductivity of fluids an electric conductivity cell has to be used. The cell requires the combination of a ceramic substrate with a metal based coating. The coatings need a good adhesion and a high purity which can withstand a corrosive medium at various temperatures. Typical coatings are copper, silver, gold and platinum. These coatings can be achieved up to 1 mm thickness and with a homogeneous structure by electroplating of electric conductive substrates. The paper describes the design and different possibilities for the metallising of insulating substrates or insulating layers prior to a precious metal coating.
Bemerkung: Electrolytical conductivity: 146. PTB-Seminar ; (PTB-Bericht PTB-ThEx-15)

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