What is active vibration isolation: full disclosure of active vibration isolation technology

ByZhou Yiting
What is active vibration isolation: full disclosure of active vibration isolation technology

What is active vibration isolation?

Active vibration isolation is a technique that counteracts vibrations by monitoring them in real-time and actively applying reverse force. Unlike passive vibration isolation that relies on material elasticity to block vibrations, active vibration isolation consists of a closed-loop system consisting of sensors, controllers, and actuators, which can accurately identify and suppress low-frequency to high-frequency vibrations, especially suitable for precision equipment with extremely high stability requirements.

The core principle of active vibration isolation

Its core lies in the “perception calculation compensation” closed-loop: sensors collect real-time vibration data, controllers quickly analyze vibration frequency and direction, and actuators immediately generate reverse force to counteract vibration.

For example, LeadTop’s TA800 desktop active isolation platform uses a composite technology of active damping matrix and passive isolation layer to achieve six degrees of freedom vibration suppression in the 1-200Hz wide frequency band, with isolation efficiency greater than 90% @ 5Hz, ensuring the stability of equipment such as wafer inspection and femtosecond laser systems.

The TA800 table-type active vibration isolation platform

Application scenarios of active vibration isolation

Active isolation is widely used in fields such as semiconductor manufacturing, quantum technology, and life sciences.

For example, LeadTop’s LVH-T15 heavy-duty active isolation platform is designed specifically for TEM/SEM. Through electromagnetic actuators and four stage air spring composite technology, it eliminates 0.5-5Hz building sway interference, improves cryo electron microscopy resolution and FIB beam stability, and becomes an ideal choice for heavy-duty precision instruments.

LVH-T15 Heavy-duty Active Vibration Isolation Platform

summary

Active isolation achieves vibration suppression through active intervention, and its high-precision and wideband characteristics make it a core technology for high-end laboratories and industrial scenarios. LeadTop, with innovative products such as TA800 and LVH-T15, provides full frequency, six degree of freedom vibration solutions for precision equipment, driving isolation technology towards higher performance.