Electro-dynamic Vibration Shaker System

1.1. Features 

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.Able to complete sine ,random , impact environmental tests

6.This system requires voltage fluctuation, ≤±10% 

7.This system requires Grounding resistance, ≤4Ω 

8.High reliability, especially suitable for long-time operation

Digital Switch Type Amplifier

Introduction                                                                                     

 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 . Features

Easy maintenance

Interchangeable power module box, compact design, saving space, easy to maintenance.

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.

3. Vertical Ex-pander

Vertical expander made of light weight magnesium alloy, with relative high strength-weight ratio. The expander able simultaneously test for multi items, reduce testing time. With the reliable expander, makes the system able for large size specimen install and testing , reduce the danger of damaging the suspension system. And it can simulate harsh transportation conditions, test for large and heavy equipment .

4.Horizontal Slip Table

With horizontal slip table ,the electro-dynamic vibration tester able for X,Y,Z trial direction testing. And can combine temperature humidity test system do combined environmental testing .With turbo - scroll bar or chain wheel rotation system, one person can easily rotate the vibration bench and connect it to the horizontal table. Adopt mechanical position limitation to ensure the connection between the vibration system and horizontal slip table. Multi size slip table available, from 300mm×300mm(for small vibration system)to  large specimen test 2m×2m slip  table. Different bearing limitation able to perform different operation and comply different requirements. The thickness and size of the slip table will influence the vibration system performance, and affect the high limitation frequency , user can customize it.

Technical Parameters  

Vibration System (Model :L315M)
Rated Sine Force	300kgf
Rated Random Force	300kgf
Rated Shock Force	600kgf
Frequency Range	5~4000Hz
Max. Displacement	25.4mm
Shock Displacement	25.4mm
Max. Velocity	2m/s
Max. Acceleration	981m/s2
Armature Diameter	Φ150mm
First Resonance Frequency	2900Hz
Max. Eccentric Torsion	>196N×m
Mass of Moving elements	3kg
Load Connection Point	13  Connection Point
Bench Screw Size (Standard)	M8
Bench Screw layout (diameter ,square)	Φ60mm 6 piece,Φ120mm 6 piece
Axial Vibration Isolation Frequency	<3Hz
Max. Loading	120kg
Magnetic leakage	<3mT (≤1mT optional for special requirement )
Dimension(uncrated )(L×W×H)	764mm×530mm×660mm
Weight	490kg
Blower (Model:HP-1)
Power	0.75kW
Air Flow	0.18m3/s
Air Pressure	0.015kgf/cm2
Dimension (without package)(L×W×H)	470mm×480mm×810mm
Weight (without package)	60kg
Horizontal Expander(Model :GT400M)
Bench Size	400mm×400mm
Thickness	25mm
Upper limited Frequency	2000Hz
Max. Load	150kg
Material	Magnesium
Vertical Expander (Model:HE400SQM)
Bench Dimension	400mm×400mm
Effective Mass	15kg
Working Frequency	2000Hz
Material	Magnesium