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Lo - range Vibration Test Systems
   (200 Kgf to 800 Kgf)
The lo-range of vibration test systems cater to the general test needs of miniature electronic components, small automotive assemblies and
power distribution components amongst other general test articles.

Force is measured in peak value for Sine operation and in RMS for Random operation on payload equal to twice of armature mass. Frequency range of operation is controlled when operating from the
Digital Vibration Controller.

Vibrator’s armature is of cast magnesium alloy with a web like structure when looking from inside. 90o rotation of the Vibrator body is facilitated on the Trunion assembly to integrate with the slip table, if desired.

High-end power amplifiers are designed upon high switching frequency to drive electromagnetic Vibrators.

The Amplifier features an integrated field power supply and microelectronics based interlocks are displayed on the front soft touch alphanumeric display panel. It 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.

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.

EVG0205L
PA0205SM
EVG040L
PA040SM
EVG060L
PA060SM
EVG080L
PA080SM
Force Rating Peak Sine 200 Kgf 400 Kgf 600 Kgf 800 Kgf
Rms Random 200 Kgf 400 Kgf 600 Kgf 800 Kgf
Peak Shock -- -- 1200 Kgf 1600 Kgf
Bare Armature Diameter 140 mm 140 mm 180 mm 240 mm
Weight 4 Kg 4 Kg 8 Kg 11 Kg
Resonance (±5%) 3.5 kHz 3.5 kHz 3.2 kHz 2.7 kHz
Bare Table Acceleration 65 ‘g’ 100 ‘g’ 75 ‘g’ 70 ‘g’
Velocity 1.2 m/sec 1.4 m/sec 1.6 m/sec 1.6 m/sec
Displacement 20 mm 30 mm 30mm 30mm
Frequency of Operation (upto) 4000 Hz 4000 Hz 3500 Hz 3000 Hz
Stray Field (150 mm above armature) <25 gauss <25 gauss <10 gauss <10 gauss
Payload capacity on pneumatic VPLS 20 Kg (no VPLS) 45 Kg (no VPLS) 90 Kg 120 Kg
Air Cooling System Vibrator 300 cfm forced air 700 cfm forced air 700 cfm forced air 1000 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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