| 摘要 |
A flexural vibration piece includes: a flexural vibrator that has a first region on which a compressive stress or a tensile stress acts due to vibration and a second region having a relationship in which a tensile stress acts thereon when a compressive stress acts on the first region and a compressive stress acts thereon when a tensile stress acts on the first region, and performs flexural vibration in a first plane; and a heat conduction path, between the first region and the second region, that is formed of a material having a thermal conductivity higher than that of the flexural vibrator and thermally connects between the first region and the second region, wherein when m is the number of heat conduction paths, &rgr;th is the thermal resistivity of the heat conduction path, &rgr;v is the thermal resistivity of the flexural vibrator, tv is the thickness of the flexural vibrator in, a direction orthogonal to the first plane, and tth is the thickness of the heat conduction path, a relationship of tth≧(1/m)×tv×(&rgr;th/&rgr;v) is satisfied.
|
