Overview of the Basic Principles of Vibration Isolation Systems: From Elastic Damping to Stable Paths of Intelligent Control
Classification and core value of vibration isolation system
The vibration isolation system protects precision equipment from external interference by isolating or attenuating vibration energy. Its core value lies in enhancing experimental precision and prolonging equipment lifespan.
According to its working principle, the vibration isolation system can be divided into passive vibration isolation and active vibration isolation: the former relies on the physical properties of elastic elements, while the latter combines sensors and actuators to achieve dynamic compensation.
Basic principle of passive vibration isolation system: “silent guardianship” of elastic elements
Passive vibration isolation absorbs vibration energy through the deformation of materials such as rubber and springs, and is suitable for medium to high-frequency vibration scenarios. LeadTop’s POT-G series hollow conical vibration isolation optical platform adopts a hollow conical rubber structure, achieving performance close to that of inflatable platforms, and is paired with a honeycomb tabletop to disperse vibration energy.
Its vertical/horizontal natural frequency ranges from 4.0 to 8.0 Hz, with a tabletop flatness of 0.05-0.1 mm/㎡ and a surface roughness of 0.8-1.6 μm. The structure is stable and requires minimal maintenance, making it an ideal choice for microscopes, holographic exposure, and other equipment.
Basic principle of active vibration isolation system: “precise counterattack” through intelligent control
Active vibration isolation achieves real-time cancellation of low-frequency vibrations through a closed-loop control process of “monitoring-analysis-compensation”.
LeadTop’s LHV series active vibration isolation module supports ±2μm displacement compensation and intelligent load adaptation (0.5-5ton), with six degrees of freedom precision control ensuring the stability of equipment in complex vibration environments. Its 8ms fast response capability effectively copes with sudden impacts, making it suitable for high-precision scenarios such as quantum computing and acoustic testing.
Selection and application logic of vibration isolation system
When selecting a vibration isolation system, it is necessary to comprehensively consider vibration frequency, equipment accuracy, and cost. Passive vibration isolation is low-cost and easy to maintain, making it suitable for conventional scenarios; active vibration isolation has high accuracy and strong adaptability, making it suitable for high-end demands.
Brands such as LeadTop have provided full-scenario solutions ranging from passive to active vibration isolation for precision manufacturing through technological innovation, helping the industry break through the bottleneck of vibration interference and move towards a higher precision era.