Vibration Test System

DEV 140 [200 To 300 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 force range of shakers are specially designed for test laboratories and for testing electronic components, small PCBs and for conducting experiments and have light payload capacity.

System Description

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 140-DPA 2K

DEV 140-DPA 3K

System Performance

Armature diameter 140 mm 140 mm
Sine force (peak) 200 Kgf (440 lbf) 300 Kgf (660 lbf)
Random force (rms) 140 Kgf (308 lbf) 210 Kgf (462Ibf)
Shock force 400 Kgf (880 Ibf) 600 Kgf (1320 Ibf)
Acceleration (Sine) 70 'g' 80 'g'
Velocity (sine peak) 1.5 m/sec 1.5 m/sec
Displacement (Pk-pk) 25mm (1 Inch) 25mm (1 Inch)
Axial Resonance (±5%) 3300Hz 3300Hz
Useful Frequency range 5 to 4000 Hz 5 to 4000 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 2.85kg 3.8 kg
Internal load capability 20 Kg 20 Kg
Suspension axial stiffness 2 kg/mm 2 Kg/mm
Suspension cross-axial stiffness 250 Kg/mm 250 Kg/mm
Stray magnetic field (150mm above table) 25 gauss 25 gauss
Cooling air flow (blower system) 310 cfm 310 cfm
Compressed air (utility required at site) NA NA
Shaker body mass 610Kg 610Kg
Dimensions (L x W x H) (mm) 590 x 420 x 540 590 x 420 x 540

Amplifier Characteristics

Power output 70V,40A 75V, 45 A
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/td>
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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