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FIBER-OPTIC EXTRINSIC FABRY-PEROT VIBRATION-ISOLATED INTERFEROMETER FOR USE IN ABSOLUTE GRAVITY METERS

机译:绝对重力计中使用的光纤外来纤维-珀罗振动隔离干涉仪

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In an absolute gravity meter, a laser interferometer measures the position of a test mass that is falling in a vacuum. The calculated value of gravity is the average acceleration of the mass during a set of drops, Since systematic accelerations of the optical system will bias the measured value of gravity, various interferometar geometries have been implemented in the past to isolate the optical system from ground motion. We have developed and tested a low-finesse fiber-optic extrinsic Fabry-Perot interferometer that is fixed to the mass of a critically damped seismometer in which the effects of systematic ground motion and acoustic vibrations are reduced. (C) 1996 Optical Society of America [References: 11]
机译:在绝对重力仪中,激光干涉仪测量在真空中掉落的测试块的位置。重力的计算值是一组液滴在下降过程中的平均加速度。由于光学系统的系统加速度将使重力的测量值产生偏差,因此过去采用了各种干涉几何形状来将光学系统与地面运动隔离开。我们已经开发并测试了一种低极限光纤外在法布里-珀罗干涉仪,该干涉仪固定在临界阻尼地震仪的质量上,在其中可以减小系统的地面运动和声振动的影响。 (C)1996年美国眼镜学会[参考文献:11]

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