Product
Design & Development - September 2007
Minus K Nixes Vibration
Negative-stiffness
vibration isolation improves data set integrity
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Minus K Technology Inc., in a joint venture with Kinetic
Systems, has released the MK26 Series Vibration Control
Workstation, designed for ultra-low natural frequency
applications and negative stiffness vibration isolators
to provide a compact, passive vibration isolation workstation,
with vertical and horizontal isolation efficiencies.
Vertical motion isolation is provided by a stiff spring
that supports a weight load, combined with a negative-stiffness
mechanism (NSM).The net vertical stiffness is made low
without affecting the static load-supporting capability
of the spring, according to the company. Beam columns
connected in series with the vertical-motion isolator
provide horizontal-motion isolation. The horizontal
stiffness of the beam columns is reduced by the beam
column effect-a beam-column behaves as a spring combined
with an NSM.
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The workstation also features :
- Minus K isolators adjusted to 1/2 Hz to achieve 93
percent isolation efficiency at 2 Hz, 99 percent at 5 Hz
and 99.7 percent at 10 Hz.
- A vibradamped frame.
- A choice of tabletops and other customizable accessories.
- Class 100 clean room compatibility, while Class 10
is available.
- A vertical load adjustment crank-a manual adjustment
that compensates for changes in vertical load.
- A vertical stiffness adjustment screw to dial in Hz
or less vertical natural frequency.
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