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Active Vibration Station

Active isolation systems offer a solution, which combines stiffness with a very short settling time. The most useful active systems employ inertial velocity in a feedback loop. (Inertial velocity can be measured for example by integration the signal from an accelerometer).

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Description

The Active isolation systems offer a solution, which combines stiffness with a very short settling time. The most useful active systems employ inertial velocity in a feedback loop. (Inertial velocity can be measured for example by integration the signal from an accelerometer). A signal proportional to inertial velocity is very similar to a viscous damping force, but with the very important difference that the damping is relative to an inertial plane. So in contrast to the passive system, by increasing the damping, the system becomes ‘glued’ to the inertial plane which by definition means the system is isolated from the environment.

Techincal Specifications

IsolationDynamic 0.7 Hz to 200 Hz, mainly passive at a higher frequencies although for good stability the feedback is active at least 2 kHz.
 TransmissibilitySee Transmissibility Curve. Above 10 Hz transmissibility <0.01 (-40 dB)
 Maximum load140 kg
 Dimensions500x600x80 mm
 Self-weight23 kg
 Electrical 
 Safety Class1
 Power ConsumptionMaximum 10 W when isolating, maximum 20 W during load adjustment
 Input Voltage 90-120 V AC, 47-63 Hz
200-240 V AC, 47-63 Hz
 Fuses2×1.6 A / 250 V slow, located in the power socket on the rear side of the unit
Normal Enviromental Conditions 
 Protection ClassIP 20
 Temperature Range5-40°  C
 Relative Humidity 10-90% (5-30°  C)
10-60% (30-40°  C)
 ApplicationIndoor
 AltitudeUp to 2000 m (6 500 ft)

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