Method for anodically bonding an electrode to a ring laser...

G - Physics – 01 – C

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G01C 19/66 (2006.01) H01S 3/083 (2006.01)

Patent

CA 2360924

A method for forming an electrode seal between an excitation electrode and a laser block in a ring laser gyro having increased bond durability, strength, and greater resistance to solvents and reactive compounds. A thin ring of sealing material is positioned between an excitation electrode and a laser block of the ring laser gyro, and the sealing material is compressed. Chemical and physical bonds are formed between the excitation electrode and the sealing material and between the sealing material and the laser block. A pre- determined electrical potential is applied across the excitation electrode, the sealing material, and the laser block for a pre-determined period of time and at a pre-determined temperature. The electrical potential increases the number of chemical and physical bonds that are formed at the seal, thus increasing the bond durability and strength.

L'invention concerne un procédé permettant de former un joint d'électrode entre une électrode d'excitation et un bloc laser dans un gyrolaser annulaire, ce joint présentant une durée de vie et une solidité accrues ainsi qu'une résistance améliorée aux solvants et aux composants réactifs. On dépose un anneau mince de matériau de scellement entre une électrode d'excitation et le bloc laser d'un gyrolaser annulaire puis on comprime ce matériau de scellement. Des liaisons physiques et chimiques sont ainsi formées entre l'électrode d'excitation et le matériau de scellement et entre le matériau de scellement et le bloc laser. On fait applique ensuite un potentiel électrique prédéterminé dans l'électrode d'excitation, le matériau de scellement et le bloc laser pendant un intervalle de temps prédéterminé et à une température prédéterminée. Ce potentiel électrique augmente le nombre des liaisons chimiques et physiques formées au niveau du joint, et permet ainsi d'accroître la durée de vie et la solidité du joint.

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