Research on Suspensions for Gravitational Wave Detectors

***9870032冈萨雷斯改进的，用于引力波探测器质量测试的双摆悬挂系统将被设计并建造一个原型。这将为LIGO探测器环境下测试质量的悬浮和控制提供一种可行的方法。将在样机上设计和测试不同钟摆模式的传感器和钟摆质量的致动器。世界各地正在建造几个干涉引力波探测器。他们使用各种不同的方法来悬挂测试质量，这样它们就可以与地震噪声隔离开来，并在尽可能宽的频率范围内被视为引力场的自由质量。悬架设计的选择代表了隔震、热噪声、可靠性和控制设计之间的微妙平衡。LIGO探测器的初始设计是最简单的摆设计。宾夕法尼亚州立大学的努力，与LIGO科学合作组织其他小组的工作相结合，将提供一个更好的悬挂系统的设计和原型，通过减少地震和热噪声的贡献，将提高LIGO探测器在低频时的灵敏度

***9870032GonzalezAn improved, double-pendulum suspension system for the test of masses in gravitational wave detectors will be designed and a prototype will be built. It will provide a feasible way of suspending and controlling the test masses in the LIGO detector environment. Different sensors of the pendulum modes and actuators on the pendulum masses will be designed and tested on the prototype. Several interferometric gravitational wave detectors are now in construction around the world. They use various different ways of suspending the test masses so that they can be isolated from seismic noise and treated as free masses for the gravitational field in the widest possible frequency range. A choice of a suspension design represents a delicate balance between seismic isolation, thermal noise, reliability and control design. The initial design for the LIGO detectors is the simplest pendulum design. The effort at Penn State, integrated with the work of other groups in the LIGO Science Collaboration, will provide a design and a prototype of a better suspension system that will increase the sensitivity of the LIGO detectors at low frequencies by reducing the seismic and thermal noise contributions.***