人们定期问振动阻尼和振动隔离之间有什么区别。这些短语有时可以互换使用，但它们是不同的。TMC销售和应用工程师Jake Porrazzo使用CleanbenchTMto illustrate the disparity between damping and isolation in this clip.
Damping, in short, refers to how efficiently a tabletop stops disturbances from propagating through it; in this example, researchers use the CleanBench top. Broadband damping is used in the清洁板顶and other optical tables. These tops are built in such a way that disruptions are diffused before they reach other areas of the top.
例如，如果您将振动放置在自身振动的顶部，例如电动机或开关，则彻底阻尼的顶部将非常有效地避免振动到达顶部的其他部分。衰减较差的顶部不会。这是阻尼。
视频来源：TMC振动控制
In the video, Jake illustrates damping by kicking an undamped steel top and a heavily damped CleanBench top. The清洁板顶在到达乒乓球之前将振动能量转向熵的工作要好得多。清洁台的特殊结构消除了这种干扰形式。
The separation of the top from the floor vibration is known as isolation. The Micro-g®清洁台上使用气动隔离腿来完成此操作。
Jake kicks the platform on which the CleanTop is situated to demonstrate how the isolator legs minimize floor vibration from reaching the top’s surface proportionate to their transfer function. The legs float on compressed air for the first kick, as they would in normal operating conditions.
For the second kick, Jake turns off the pressurized air, making the legs hard isolators rather than floating. The accelerometer plot shows that tough isolators do little to keep floor vibrations from reaching the tables, whereas Micro-g legs give excellent振动隔离.
Since they do not do anything to detect floor vibrations, pneumatic isolators are commonly referred to as “passive” vibration isolators. Active isolators, like theStacisdevice, include sensors that detect and respond to floor vibration.
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