Vibration Test System

DEV 300 [2000 To 2500 kgf]

System Description

Electro-dynamic Shakers simulate real-world environments to investigate dynamic endurance and ascertain reliability in select fields of vibration testing.

This low sturdy force rating are specially designed for testing of wide range of products, be it electronics, automotive and defence applications. This series shaker generates high velocity which is required for shock applications.

As a standard configuration, the shaker is supported on a frame with a trunnion assembly for 90 degree till. Shaker itself has pneumatic body isolation and is force-air-cooled by a centrifugal blower system which sucks air through the evenly spaced air guide path that is interlocked with the amplifier console for operational safety.

System Description

The shaker's electromagnet and moving element are energized by the direct current and alternating current supplies respectively generated and are electronically interlocked to the power amplifier drive console.

The solid-state Power Amplifier is an intelligent microcontroller based console in a movable rack version. It has a feather-touch user-friendly interface at the front panel to drive the respective Electro-dynamic Shaker.

The PC based Remote Link Module can be optionally used to remotely operate the complete vibration system. It is based on a chip-board microcontroller and is driven by software commands to communicate identical functions of the amplifier's control panel e.g. Gain, FPS, Cooling, Start-up and Shutdown. All the critical parameters like output voltage, current, temp., and all system interlocks are displayed simultaneously.

Salient Features

  • Trunnion mounted shaker
  • Compatible with any Digital Vibration Controller
  • Low weight and robust Armature
  • Low Noise Cooling Blower
  • Optical Auto centering
  • Microcontroller based fault diagnosis

Technical Specifications

DEV 300-DPA 24K

DEV 300-DPA 36K

System Performance

Armature diameter 300 mm 300 mm
Sine force (peak) 2000 Kgf (4400 lbf) 2500 Kgf (5500 lbf)
Random force (rms) 2000 Kgf (4400 lbf) 2500 Kgf (5500 Ibf)
Shock force 4000 Kgf (8800Ibf) 5000 Kgf (11000 Ibf)
Acceleration (Sine) 80 'g' 100 'g'
Velocity (sine peak) 1.8m/sec 1.8m/sec
Displacement (Pk-pk) 51mm(2 Inch) 51mm(2 Inch)
Axial Resonance (±5%) 3000Hz 3000Hz
Useful Frequency range 5 to 3200 Hz 5 to 3200 Hz
Protection Interlocks Mains input Over & Under Voltage, Over Current, Loss of Input Phase, Over Temperature Amplifier &   Shaker, Cooling flow, Field fail, User safety interlock or if specifically required by customer.

Shaker Characteristics

Moving element mass 25kg 25kg
Internal load capability 300 Kg 350 Kg
Suspension axial stiffness 9Kg/mm 9Kg/mm
Suspension cross-axial stiffness 400 Kg/mm 400 Kg/mm
Stray magnetic field (150mm above table) 10 gauss 10 gauss
Cooling air flow (blower system) 1600 cfm 1600 cfm
Compressed air (utility required at site) 6 Bar 6 Bar
Shaker body mass 3300Kg 3300Kg
Dimensions (L x W x H) (mm) 1350 x 850 x 1120 1350 x 850 x 1120

Amplifier Characteristics

Power output 120V,200A 120V, 300A
Total harmonic distortion (At resistive load) Typically 0.5% Typically 0.5%
Input impedance (Nominal) 10 k Ohm 10 k Ohm
Input sensitivity 4 V rms Compatible with all standard controllers
Signal-to-Noise ratio > 75 dB > 75 dB
Power efficiency >90% >90%

Safety Norms

Protection Integral protection to prevent the output devices working beyond their specification limits.
EMC EN50081-2 Emissions and EN50082-2 Immunity

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