Since the temperature coefficient of the frequency of YX LGS is around −45 ppm/°C at 1000 °C [ 6 ], these modifications of the acoustic properties of the LGS surface could induce temperature measurement errors close to 10 °C, which is quite significant. 4.
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Langasite as Piezoelectric Substrate for Sensors in Harsh Environments: Investigation of Surface Degradation under High-Temperature Air Atmosphere.
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