CE Approved Electrodynamic Shaker Vibration Test Equipment  3rd party calibrated

1 Application

Electrodynamic Shaker Vibration Test Equipment  adopted the 'double-magnetic circuit structure','self-generated skeleton action circles', 'Airborne Support' and 'roller bearings and linear guidance','trunnion isolation' advanced modern technology and special technology, can be completed in X, Y, Z three-axis sinusoidal vibration test and broadband random vibration tests, to be completed by the classical (half - sine, trapezoidal, sawtooth wave)  pulse and shock response spectrum test. It widely used in national defense, weapons, aviation, aerospace, communications, electronics, electrical appliances, communications, home appliances and other fields. 

2 Vibration System( ES-20 )

2-1 Technical parameters

(1) Rated Force: sine force 20000N; random force 20000N; shock force 40000N;

(2) Frequency Range: 3Hz to 2800Hz, Fixed frequency, sweep back and forth, sine, random, shock

(3)Sweep-frequency Mode: linear, logarithmic, sweep back and forth, fixed frequency

(4)Sweep-frequency Times: 1 to 32767

(5)Sweep-frequency Time: fixed frequency/single 1-3600mins, sweep-frequency curves can be displayed.

(6)Max. Acceleration1000m/s² (non load)

(7)Max. Speed: 1.8m/s

(8)Max. Displacement:51mmp-p (non load), double peak

(9)Impact Displacement: 51mm

(10)Weight of Moving Coil: 30kg

(11)Vibration Directions: horizontal

 (12)Vibration Wave: sine, random, shock

 (13)Diameter of the Moving Coil: Φ445 mm

 (14)Vibration System Dimension: W2500xH1300xD1550 mm

 (15)Vibration System weight: 4000KG

2-2 Vibration Components Details

 (1)Vibration Generator 1 set 

 (2)Vibration Controller 1 set

 (3)Communication Connection Chamber 1 set

 (4)DA-20 Power Amplifier 1 set

 (5)Excitation Power 1 pc  

 (6)Vertical extension table :VT1212(bench size: 1200mmx1200mm)

  Horizontal extension table: LT1212(bench size: 1200mmx1200mm)

 (7)Driver Software 1 set

 (8)Cooling System 1 set

 (9)Industrial Computer 1 set

 (10)Color Printer 1 set

 (11)Acceleration Sensor (include output line)    1 pc

 (12)Vibration Fixture 1 set (According to the test sample)

2-3 About The Vibration System

 (1) Double magnetic circuit structure to ensure high magnetic field intensity & reduce flux leakage;

   Special degaussing structure can reduce flux leakage to below 1 mt

 (2) U-type spring ,rollers and linear bearing for strong resistance of deflecting load

 (3) Air spring are used for vibration isolation; Vibration system work steadily even with heavy load;

    no need special foundation

 (4) Protection devices are provided for over-thermal, over-load, over-current, over-voltage, and       

      over-displacement of the vibration tester;

    Electrical network protection devices for over-voltage, under-voltage, lacking phase;

    Drive power , current-limiting , soft-start, over-temperature, short-current,module fault protecting

 (5) Can complete sine ,random , impact environmental tests

 (6) This system has little requires for voltage fluctuation, ≤±10% is OK

 (7) This system has little requires for Grounding resistance, ≤4Ω is OK 

 (8) High reliability, especially suitable for long-time running

2-4 DA-20 Power Amplifier

2-4-1 Summarize:

  This system adopts the sine pulse width modulation technology of digital power amplifier.Its working principle
Is: using the MOSFET field-effect’s high frequency switch power, through digital circuit to amplify and restore the low-voltage signal which input by controller, Then the output the original signal to vibration tester's moving coil circuit,and drive vibration tester's extension table movement.

The main part of the digital power amplifier: the front control, power amplifier module, protection circuit, the power part and electric cabinet.

2-4-2.Feature:

2-4-2-1 Easy maintenance:
Interchangeable power module box, compact design, saving space, easy to maintenance.
2-4-2-2 LCD display:
Logic module adopts microcomputer CPU chip processor, LCD display function;Can be showed various system data in detail (The power amplify output True RMS value, with additional data display) and operation state and fault judgment.With remote control, remote measuring, remote communication function, friendly interface, easy operation.
2-4-2-3 Complete protection function:
The power amplifier set up protection of power grid over voltage, power grid under voltage, power grid lack of phase, logic fault, power module, power temperature module,output over current, output over voltage,driving power, the table’s displacement, table temperature, etc. Any failure occurs, shut down output,with sound and lighting alarm at the same time. Except the above protection, also has poor RMS value the protection, and emergency stop protection.

2-4-3 Parameters:

 Dimension: W550*H1750*D900 mm

 Weight: 500kg