商用地震检波器的干涉测量传感
Interferometric sensing of a commercial geophone
摘要：
我们提出了一个修改后的商业L-4C地震检波器与干涉仪读出，表现出的分辨率60倍低于包括线圈磁铁读出在低频。改进后的传感器的预期应用是在振动隔离平台，需要在低于1赫兹的频率改善性能。建立了先进LIGO“HAM-ISI”隔振系统的控制和噪声模型，结果表明，该传感器在0.1Hz时可将残余振动降低70倍
英文摘要：
We present a modified commercial L-4C geophone with interferometric readout that demonstrated a resolution 60 times lower than the included coil-magnet readout at low frequencies. The intended application for the modified sensor is in vibration isolation platforms that require improved performance at frequencies lower than 1 Hz. A controls and noise-model of an Advanced LIGO 'HAM-ISI' vibration isolation system was developed, and it shows that our sensor can reduce the residual vibration by a factor of 70 at 0.1 Hz
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