REVIEW OF SCIENTIFIC INSTRUMENTS 86, 046108 (2015)
Note: A three-dimension active vibration isolator for precision atom gravimeters
Min-Kang Zhou, Xin Xiong, Le-Le Chen, Jia-Feng Cui, Xiao-Chun Duan,and Zhong-Kun Hu a)
MOE Key Laboratory of Fundamental Physical Quantities Measurement, School of Physics, Huazhong
University of Science and Technology, 1037 Luo Yu Road, Wuhan 430074, People’s Republic of China
(Received 14 January 2015; accepted 16 April 2015; published online 27 April 2015)
Citation: Review of Scientific Instruments 86, 046108 (2015); doi: 10.1063/1.4919292
View online: http://dx.doi.org/10.1063/1.4919292
View Table of Contents: http://scitation.aip.org/content/aip/journal/rsi/86/4?ver=pdfcov
Published by the AIP Publishing
Anultra-lowfrequencyactivevibrationisolator,simultaneouslysuppressingthree-dimensionalvibra-
tion noise, is demonstrated experimentally. The equivalent natural period of the isolator is 100 s and
12 s for the vertical and horizontal direction, respectively. The vibration noise in the vertical direction
is about 50 times reduced during 0.2 and 2 Hz, and 5 times reduced in the other two orthogonal
directions in the same frequency range. This isolator is designed for atom gravimeters, especially
suitable for the gravimeter whose sensitivity is limited by vibration couplings. C 2015 AIP Publishing
LLC. [http://dx.doi.org/10.1063/1.4919292]
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