Yu, J.B. Chen, J.X. He, H.Y. Kang, L. Liu, L. Nie, X.J. Ning, C.J. Wang, A.X. Wang, G.Y. Yu, Y.J. Zhang, J.S. Zhu, D.H. JACoW Publishing Geneva, Switzerland 978-3-95450-207-3 10.18429/JACoW-MEDSI2018-WEPH34 English 280-282 WEPH34 ISOL controls quadrupole damping ground-motion Contribution to a conference proceedings 2018 2018-12 https://doi.org/10.18429/JACoW-MEDSI2018-WEPH34 http://jacow.org/medsi2018/papers/weph34.pdf Based on the increase of accuracy requirements coming from increasing instrument precision, advanced isolation components are required, and active vibration control method is proposed. This paper mainly shows the experimental system, and some work has been done at present. Now that we are still at the beginning research of active vibration isolation, we hope it will be steadily used in the support systems of some precision equipment and instruments.