Thermoelastic property of the torsion fiber in the gravitational experiments
Thermoelastic property of the torsion fiber in the gravitational experiments
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DOI：
10.1063/1.1150489
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发表时间：
2000-03
影响因子：
1.6
通讯作者：
Jun Luo;Zhongtao Hu;H. Hsu
中科院分区：
文献类型：
--
作者：
Jun Luo;Zhongtao Hu;H. Hsu
研究了扭转纤维的热弹性和非线性性质。设计了一种对称圆盘扭摆，用于测量室温下钨光纤的扭转弹簧常数的温度系数，结果表明，环境温度±1 °C的波动会使光纤扭转弹簧常数产生约165ppm的不确定度。建议在精密扭摆实验中测量扭转纤维的热弹性。
The thermoelastic and the nonlinear properties of a torsion fiber were studied. A symmetric disk torsion pendulum was designed to measure the temperature coefficient of the torsion spring constant of a tungsten fiber at room temperature, and the result shows that the ambient temperature fluctuation with ±1 °C would introduce a considerable uncertainty about ∓165 ppm in the torsion spring constant of the fiber. It is suggested that the thermoelasticity of the torsion fiber should be measured in a precision torsion pendulum experiment.