Laser gyro comprising a device for protecting from corrosion
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United States of America Patent
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Aug 25, 2015
Grant Date -
Dec 12, 2013
app pub date -
Jun 7, 2013
filing date -
Jun 8, 2012
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Abstract
A laser gyro includes an optical block manufactured from a glass-ceramic first material having apertures, electrodes placed in the apertures of the optical block, and seals ensuring the hermeticity of the optical block in the location of the apertures. The seals use indium of a first redox potential. The laser gyro furthermore includes, making contact with the seal, at least one sacrificial electrode comprising a second material of a second redox potential, the second redox potential being lower than the first redox potential.
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