Resonator thermocompensated by a shape-memory metal
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United States of America Patent
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Apr 28, 2015
Grant Date -
Aug 7, 2014
app pub date -
Feb 3, 2014
filing date -
Feb 7, 2013
priority date (Note) -
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Abstract
The invention relates to a thermocompensated resonator comprising a body used in deformation, the core of the body being formed by a first material. According to the invention, at least one part of the body comprises at least one coating made of shape-memory metal, the variations in the Young's modulus of which as a function of the temperature (CTE) are of opposite sign to those (CTE) of the first material used for the core so as to allow said resonator to have a frequency variation as a function of the temperature which is substantially zero at least to the first order (α, β).
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