长度传感与控制

H. Grote
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引用次数: 0

摘要

长度传感可以看作是干涉测量的核心目标,旨在尽可能精确地测量长度和长度波动。对于干涉型引力波探测器来说,包含引力波信息的量是由对长臂长度波动的超灵敏测量得出的。在本章中,我们将描述推导先进引力波探测器长度信号的方法,并讨论长度控制的各个方面。我们将进一步研究锁获取的非平凡过程,以及引力波信号的读出。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Length sensing and control
Length sensing can be seen as the core objective of interferometry, aiming at an as precise as possible measurement of length and length fluctuations. For an interferometric gravitational-wave detector, the quantity containing gravitational-wave information is derived from an ultra-sensitive measurement of differential length fluctuations of the long arms. In this chapter we will describe methods to deduce length signals for advanced gravitational-wave detectors and discuss aspects of length control. We will further look at the non-trivial process of lock acquisition, as well as the readout of the gravitational-wave signal.
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