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Medium - range Systems
    1000 Kgf to 3500 Kgf
The medium-range of test systems are specially manufactured for continuous duty testing of automotive components, avionics assemblies,
consumer electronic products for transportation simulation, product development & reliability qualification criteria in industries corporate.

The mirror image magnetic structure provides extreme concentrated flux in the force generating area and keeps stray field minimum at the top of armature. Frequency range of operation is controlled when operating from the Vibration Controller.

The low natural frequency of this body suspension system virtually eliminates the need for large reaction masses for most applications. Force is measured in peak value for Sine operation and in RMS for Random operation on payload equal to twice of armature mass.

Vibrator’s armature is of cast magnesium alloy with a web like structure when looking from inside. The rectangular cross section special grade oxygen free current carrying conductor is wound with hi-temperature resin bond such that full force generated in the extreme flux area is transferred to the armature top minimizing the failures.

90o rotation of the Vibrator body is facilitated on the Trunion assembly to integrate with the slip table. The pneumatic isolation system suspends the body on air springs located on trunions.

The mid sized power modules are designed to drive medium range of electromagnetic Vibrators. The Amplifier features an integrated field power supply and microelectronics based interlocks are displayed on the front soft touch alphanumeric display panel.

The amplifier has synchronised loss protection facility to have a smooth shut-down in the event of power failure and has an event management system based upon microprocessor user interface which also looks after the fault diagnosis.

Self contained rack compatible modules are stacked over each other, use independent cooling fans and deliver greater than 90% efficiency with capability to handle peak current in Random operations.

The power to energise Vibrator electromagnet i.e. the field power designed with solid state electronics is generated in the main amplifier rack console itself. Direct coupled design with LC filters inside amplifier rack console take care of the non linear behavior of armature in the full frequency band, eliminating the maintenance & safety hassles of matching output transformer design.

EVG100M
PA100SM
EVG150M PA150SM EVG250M PA250SM EVG350M  PA350SM
Force Rating Peak Sine 1000 Kgf 1500 Kgf 2500 Kgf 3500 Kgf
Rms Random 1000 Kgf 1500 Kgf 2500 Kgf 3500 Kgf
Peak Shock 2000 Kgf 3000 Kgf 5000 Kgf 7000 Kgf
Bare Armature Diameter 240 mm 300 mm 360 mm 360 mm
Weight 11 Kg 25 Kg 35 Kg 35 Kg
Resonance (±5%) 2.7 kHz 2.2 kHz 2.1 kHz 2.1 kHz
Bare Table Acceleration 90 ‘g’ 60 ‘g’ 75 ‘g’ 100‘g’
Velocity 1.5 m/sec 1.5 m/sec 1.7 m/sec 1.7 m/sec
Displacement 51 mm 51 mm 51 mm 51 mm
Frequency of Operation (upto) 3000 Hz 2500 Hz 2500 Hz 2200 Hz
Stray Field (150 mm above armature) <10 gauss
Payload capacity on pneumatic VPLS 300 Kg 300 Kg 400 Kg 500 Kg
Air Cooling System Vibrator 1000 cfm forced air 1500 cfm forced air 1800 cfm forced air 1800 cfm forced air
Amplifier : Self cooled by fans inside the console
Input Impedance 10 Kohm
S/N Ratio > 70 dB
Safety Interlocks (Alphanumeric display) Hi & Lo Input Voltage, Excess Current, Output Short Circuit, Power Module failure,
Armature Failure, Temperature & Cooling interlock, Emergency Stop
Working Ambience
5 deg C to 45 deg C and upto 85% RH

 

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