Vibration Test System

DEV 125 [50 To 100 kgf]

System Description

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

This very low force range of shakers are specially designed for engineering institutions and test laboratories for testing in wide

System Description

frequency range. And also for testing and calibration of transducers and sensors.

As a standard configuration, the shaker is supported on a frame with a trunnion assembly for 90 degree till. It 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.

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.

Salient Features

  • Trunnion mounted shaker
  • Compatible with any Digital Vibration Controller
  • Low weight Armature
  • Low Noise Cooling Blower
  • Microcontroller based fault diagnosis
  • Low Frequency Isolation(optional)

Technical Specifications

DEV 125-DPA 1K

DEV 125-DPA 2K

System Performance

Armature diameter 125 mm 125 mm
Sine force (peak) 50 Kgf (110 lbf) 100 Kgf (220 lbf)
Random force (rms) 35 Kgf (77 lbf) 70 Kgf (154 Ibf)
Acceleration (Sine) 60'g' 70 'g'
Velocity (sine peak) 1.5 m/sec 1.5 m/sec
Displacement (Pk-pk) 20mm (1 Inch) 22mm (1 Inch)
Axial Resonance (±5%) 4000Hz 4000 Hz
Useful Frequency range 5 to 5000Hz 5 to 5000 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

Armature mass 0.8kg 1.4kg
Internal load capability 5 Kg 12 Kg
Suspension axial stiffness 2 kg/mm 2 Kg/mm
Suspension cross-axial stiffness 230 Kg/mm 230 Kg/mm
Stray magnetic field (150mm above table) 25 gauss 25 gauss
Cooling air flow (blower system) 250 cfm 250 cfm
Compressed air (utility required at site) NA NA
Shaker body mass 410Kg 410Kg
Dimensions (L x W x H) (mm) 550 x 400 x 500 550 x 400 x 500

Amplifier Characteristics

Power output 40V, 25A 70V,30A
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 > 72 dB > 72 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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