一种摆式多级主动反馈隔振系统
By using a pendulum-type multi-stage active feedback vibration isolation system, combined with passive and active vibration isolation modules, effective isolation of low-frequency vibrations is achieved, solving the problem of insufficient vibration isolation capability in existing technologies and improving the vibration isolation effect of high-precision inertial sensor testing and ground gravitational wave detection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- INNOVATION ACAD FOR PRECISION MEASUREMENT SCI & TECH CAS
- Filing Date
- 2024-01-19
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies are insufficient to effectively isolate ground vibration noise, especially low-frequency vibration noise, which limits the testing of high-precision inertial sensors and the detection of ground gravitational waves. Furthermore, passive suspension vibration isolation systems have insufficient vibration isolation capabilities in the low-frequency band.
A pendulum-type multi-stage active feedback vibration isolation system is adopted, which combines passive and active vibration isolation modules. Through a multi-stage pendulum body and suspension wire structure, displacement sensors and actuators are used to achieve multi-degree-of-freedom active feedback control, reduce the equivalent eigenfrequency and suppress vibration interference.
It effectively isolates low-frequency vibrations, reducing the equivalent intrinsic frequency of the vibration isolation system to below 0.01Hz, and attenuating vibrations near 1Hz by more than 60dB, thus improving the vibration suppression capability of the test platform.
Smart Images
Figure CN117739061B_ABST