Platinum temperature sensor and method for producing same

Details Platinum temperature sensor and method for producing same Platinum temperature sensor and method for producing same

G - Physics

01

K

G01K 7/18 (2006.01)

Patent

CA 2356856

The invention relates to a platinum temperature sensor having a ceramic substrate (4) and a platinum thin-film resistor (2) which is arranged on a main surface of said ceramic substrate. A protective intermediate layer (14, 16) consists of a ceramic layer (14) which at least in the area of the platinum thin-film resistor (2) is deposited by evaporation across the full main surface of the ceramic substrate (4) and of a sintered ceramic paste layer (16) which is deposited on the ceramic layer (14). A protective glaze (18) is applied to the protective intermediate layer (14, 16).

L'invention concerne un thermomètre à résistance de platine présentant un substrat céramique (4) et une résistance à couche mince de platine (2) placée sur une surface principale dudit substrat céramique (4). Une couche intermédiaire protectrice (14, 16) est constituée d'une couche céramique (14) déposée par évaporation sur l'ensemble de la surface principale du substrat céramique (4), au moins dans la zone de la résistance à couche mince de platine (2), et d'une couche de pâte céramique frittée (16), déposée sur la couche céramique (14). Un vernis de protection (18) est appliquée sur la couche intermédiaire protectrice (14, 16).

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