先进的LIGO两级双轴隔振定位平台。第2部分：实验研究和测试结果
Advanced LIGO Two-Stage Twelve-Axis Vibration Isolation and Positioning Platform. Part 2: Experimental Investigation and Tests Results
摘要：
本文介绍了七年来在高级LIGO重力波观测站的两级十二轴隔振平台上进行的实验研究和测试结果。这套重达5吨、宽2.5米的系统可支撑超过1000公斤的非常敏感的设备。它提供了定位能力和地震隔离在所有方向的平移和旋转。为了满足Advanced LIGO非常严格的要求，系统必须在非常大的带宽上提供超过三个数量级的隔离。它必须使运动在1 Hz时低于10^（-11）m/（Hz）^0.5，在10 Hz时低于10^（-12）m/（Hz）^0.5。该系统的原型已于2006年建成。在随后的两年中，对它进行了广泛的测试和分析。本文展示了如何与原型获得的实验结果被用来工程的最终设计。它强调了实施的工程解决方案如何不仅提高了隔离性能，而且大大简化了组装、测试和调试过程。在过去的两年中，两个LIGO天文台分别建造、测试、安装和调试了五个单元。另外五个单元正在为即将到来的第三个天文台建造。测试结果表明，该系统满足运动要求，在控制带宽内达到传感器噪声要求。
英文摘要：
This paper presents the results of the past seven years of experimental investigation and testing done on the two-stage twelve-axis vibration isolation platform for Advanced LIGO gravity waves observatories. This five-ton two-and-half-meter wide system supports more than a 1000 kg of very sensitive equipment. It provides positioning capability and seismic isolation in all directions of translation and rotation. To meet the very stringent requirements of Advanced LIGO, the system must provide more than three orders of magnitude of isolation over a very large bandwidth. It must bring the motion below 10^(-11) m/(Hz)^0.5 at 1 Hz and 10^(-12) m/(Hz)^0.5 at 10 Hz. A prototype of this system has been built in 2006. It has been extensively tested and analyzed during the following two years. This paper shows how the experimental results obtained with the prototype were used to engineer the final design. It highlights how the engineering solutions implemented not only improved the isolation performance but also greatly simplified the assembly, testing, and commissioning process. During the past two years, five units have been constructed, tested, installed and commissioned at each of the two LIGO observatories. Five other units are being built for an upcoming third observatory. The test results presented show that the system meets the motion requirements, and reach the sensor noise in the control bandwidth.
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。
