08-Optical Tables.pdf - Qioptiq Q-Shop
08-Optical Tables.pdf - Qioptiq Q-Shop
08-Optical Tables.pdf - Qioptiq Q-Shop
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<strong>Optical</strong> <strong>Tables</strong><br />
Laboratory <strong>Tables</strong>, Table Tops<br />
The efficacy of a Table Top is determined<br />
by three primary factors: mass, rigidity<br />
and damping. The mass and rigidity, in<br />
turn, define the frequency range for<br />
optimum working conditions.<br />
With low-frequency vibration, a large<br />
mass causes slight accelerations of the<br />
Table Top.<br />
High rigidity causes high resonance<br />
frequency. Thus even when subjected to<br />
high-frequency vibration, the natural<br />
vibration of the Table Top is not easily<br />
activated.<br />
Thanks to strong damping, the natural<br />
vibration of the Table Top incited by<br />
acoustic disturbances or equipment<br />
vibrations (e.g. lasers) subsides rapidly.<br />
With three types of Table Top available<br />
in a variety of sizes, you are sure to find<br />
the right Table Top for any application:<br />
The standard Table Top for almost all<br />
areas of use is the stainless steel Table<br />
Top. This Table Top is suitable for<br />
applications in which no bore holes are<br />
required for fastening instruments.<br />
Magnetic feet can be mounted on the<br />
Table Top.<br />
Stainless steel Table Tops with plastic<br />
coatings are ideal for experiments that<br />
require an electrically isolated surface, or<br />
in which aggressive liquids play a role.<br />
For applications with extremely stringent<br />
requirements on damping and rigidity,<br />
the CleanTop IITable Top is the best<br />
choice. In addition to the option of using<br />
magnetic feet, M6 tapped bores are also<br />
provided for mounting instruments.<br />
Stainless-steel Table Tops<br />
Two steel plates, which give the Table<br />
Top its high stiffness and weight, are<br />
laminated onto a core of dam ping<br />
material using epoxy resin. This laminate<br />
structure is inserted into a seamless<br />
drawn, stainless-steel, shell with rounded<br />
edges and corners, and the entire<br />
assem b ly is bonded together with epoxy<br />
resin to form a unit. The shell is then<br />
sealed by a steel plate backed with a<br />
special damping material in order that<br />
the finished Table Top will retain its<br />
original high performance, even after<br />
many years of use.<br />
These types of Table Tops are highly<br />
suitable for suppor ting experimental<br />
setups and equipment that need not be<br />
bolted down. Their rounded edges and<br />
corners make cleaning a snap. These<br />
Table Tops are 50 mm thick, provi ding a<br />
working surface height of 785 mm.<br />
Their damping characteristics and compliance<br />
curves are presented next page.<br />
Plastic-coated stainless-steel Table Tops<br />
This type of Table Top has the same<br />
laminated-shell structure as our stainlesssteel<br />
Table Tops, and has iden- tical<br />
compliance curves and damping<br />
characteris tics. Some applications require<br />
electrically insulating suppor ting<br />
surfaces, and these Table Tops have been<br />
specifically designed for them.<br />
Their better corrosion re sis tance allows<br />
their use in applications involving highly<br />
aggressive liquids.<br />
High quality<br />
Sandwich construction with damping core<br />
Ferromagnetic stainless-steel shell (1.9 mm thick)<br />
with rounded edges and corners<br />
Steel plates adding stiffness and weight<br />
Lightway core for greater damping<br />
<strong>Optical</strong> <strong>Tables</strong><br />
Epoxy resin<br />
Steel plate<br />
Viscoelastic backing providing<br />
additional damping<br />
Phone numbers: Germany +49 551 69 350<br />
France +33 47 25 20 420<br />
321
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