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arXiv 0911.0853gr-qc
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LIGO干涉仪中测试质量位移的精确校准

Accurate calibration of test mass displacement in the LIGO interferometers

E. Goetz, R. L. Savage, J. Garofoli, G. Gonzalez, E. Hirose, P. Kalmus, K. Kawabe, J. Kissel, M. Landry, B. O'Reilly, X. Siemens, A. Stuver, M. Sung

摘要:

我们描述了三种根本不同的方法,我们已经申请到校准的测试质量位移致动器,寻找系统误差校准的LIGO引力波探测器。测试的致动频率范围为90 Hz至1 kHz,致动振幅范围为1 e-6 m至1 e-18 m。对于所测量的四个试验质量致动器中的每一个,每种技术在所有频率上的加权平均系数与所有三种技术的平均致动系数的偏差小于4%。该结果表明,LIGO探测器对差分长度变化的响应的校准中的系统误差在规定的不确定度范围内。

英文摘要:

We describe three fundamentally different methods we have applied to calibrate the test mass displacement actuators to search for systematic errors in the calibration of the LIGO gravitational-wave detectors. The actuation frequencies tested range from 90 Hz to 1 kHz and the actuation amplitudes range from 1e-6 m to 1e-18 m. For each of the four test mass actuators measured, the weighted mean coefficient over all frequencies for each technique deviates from the average actuation coefficient for all three techniques by less than 4%. This result indicates that systematic errors in the calibration of the responses of the LIGO detectors to differential length variations are within the stated uncertainties.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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