Quartz thermometer

G - Physics – 01 – K

Patent

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349/29, 73/72

G01K 7/32 (2006.01) G01K 11/22 (2006.01) H03H 3/04 (2006.01) H03H 9/215 (2006.01)

Patent

CA 1174871

PRECIS DE LA DIVULGATION: Thermomètre à quartz délivrant un signal dont la fréquence est une fonction sensiblement linéaire de la température. Il comprend un diapason muni d'élec- trodes disposées respectivement sur les bords des faces supérieure et inférieure des branches du diapason. Ces électrodes sont alimentées pour faire vibrer le diapason en torsion. Les branches sont sensiblement parallèles à l'axe X du cristal de quartz. La direction perpen- diculaire aux faces du diapason fait un angle .theta. avec l'axe Z du cristal. L'angle .theta. est compris entre -30° et +30°.

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