Electromagnetic Vibration Test Bench

Product name: Electromagnetic Vibration Test Bench

Model number: GX-600-ZDN

Equipment description

Vibration test system is mainly used for products vibration and shock environment test, environmental stress screening test, reliability test. Electromagnetic vibration tester completely according to the standard of battery related testing design, simulation under the certain condition of the vibration test of battery, the battery or battery pack is fixed on the vibration table, according to the prescribed frequency, acceleration and displacement mode along the battery sample vibration of three mutually perpendicular direction measured battery should not leak, don't lose heart, not broken, no fire and explosion. Vibration test of the application scope is extremely broad, from circuit board, battery, plane, ship, rocket, missile, cars and home appliances and other industrial products.

Selection formula and vibration generator structure

Test type: sinusoidal vibration; random vibration

Frequency range: 2-4000Hz

Formula: A(g)=(2πf)2Dcm/980≒A=0.002DmmF2 D=A/0.002F2

F=M(kg) ×A(g)

Structure feature

Vibration bench

Dynamic circle: The vibrating table is equipped with casting and manual machining of the moving coil, photoelectric pneumatic load support system and dual bearing axial guidance. Dual bearing guidance is a unique feature that helps reduce axial dynamic crossover and rotation during vibration testing for superior durability.

Excitation coil: Double magnetic circuit structure, low magnetic flux leakage, uniform magnetic field.

Bench surface: It adopts advanced phosphating treatment and automobile baking technology to have long-term anti-wear and anti-rust effects.

Platform refrigeration: The low-noise fan is used to improve the air intake structure of the platform. The excitation coil adopts a honeycomb air duct and the middle magnetic ring adopts a double-layer split air duct. The new air duct design is adopted to enhance the cooling effect.

SA digital switching power amplifier

The user can check the working status of each module and system at any time. If a power module fails, it can be manually removed.

With power factor compensation device, the power factor of the whole power amplifier is 95%, which makes the grid capacity fully utilized.

The sinusoidal frequency doubling pulse width modulation technology is adopted, and the power amplifier has a high signal to noise ratio.

The working principle of the switching power supply is adopted, the conversion efficiency is high, the conversion efficiency of the power module can reach 95%, and the entire power amplifier system is completely air-cooled.

Adopting electronic automatic current sharing technology, the parallel connection of each module is almost the same, and the parallel current imbalance is ≤ 2%.

The power device uses the imported field effect module (other domestic manufacturers generally use MOS single tube). The protection circuit is reduced, the reliability is improved, and the current capacity is large. The output of a single power module box is up to 25 kVA.

Servo protection system

The protection function is complete, the whole power amplifier has grid overvoltage, grid undervoltage, grid phase loss, logic fault, power module through, power module temperature, output overcurrent, output overvoltage, drive power, stage displacement, stage temperature, Protection circuit such as external interlocking, when any fault occurs, the output is turned off, and the sound and light alarms.

Digital vibration controller

The vibration controller adopts an advanced distributed structure system. The closed-loop control is realized by the DSP processor. The PC is independent of the control loop, ensuring the real-time and high-efficiency of the control system, and responding to any changes in the test system in a timely and rapid manner, ensuring Control stability and high precision. The hardware uses a 32-bit floating-point DSP processor with a frequency of up to 300MHz, a 24-bit resolution ADC/DAC, and a low-noise design technique with high-precision floating-point digital filtering and hardware circuitry. The controller has a random control dynamic range greater than 90dB. The noise ratio is greater than 100dB.

Vibration controller feature

High performance and reliability

The closed-loop control is realized by the DSP processor. The PC is independent of the control loop, ensuring the real-time and high-efficiency of the control system. It can respond to any changes in the test system in a timely and rapid manner, ensuring the reliability and high precision of the control. All input channels feature a 24-bit resolution ADC, low noise hardware design, and built-in analog and digital anti-aliasing filters to ensure high accuracy.

Simple operation

Windows-based applications are easy to use and have a wide range of accessibility features. The system's powerful automated wizards and test report auto-generation capabilities make repeating and boring test tasks simple. The test parameters are rigorously set, and the USB 2.0 interface makes it more closely connected to the computer.

Powerful functionality and flexibility

The Vibration Controller is a powerful vibration control platform that can perform multiple complex tasks. On the same hardware platform, configure different application software, can complete a variety of analysis tasks to meet your different test analysis needs. The controller adopts modular design and can configure corresponding hardware and software according to different user needs to meet different needs of users.

Test safety

The controller provides a small level of signal control for a preview of the system's vibration control; this method helps the test engineer predetermine the noise level and a rough understanding of the system's transfer function. There are also a number of safety checks and interlock settings to maximize the safety of testers, test objects and shaker equipment. If the system is abnormal, press the system's built-in termination button to end the test.

Test report

Support one-click to quickly generate word format or PDF format test report function, you can click the report generation button to get the current test results. From the basic test control function description to the specific test setup parameters, from the control target spectrum curve to the test time domain and frequency domain curve. It is convenient for you to modify and make according to different test report specifications. It can print directly and print preview, and can be sent online.

Digital vibration controller function

Random control (Random)

According to the user-defined power spectrum (developed by the target spectrum editor), the random control adopts the transfer function equalization method to continuously output Gaussian random signals, and quickly execute real-time accurate multi-channel closed-loop control. The built-in adaptive control algorithm can be used on the system. The nonlinearity, resonant frequency, and load changes react quickly.

Frequency range: 0~4800Hz, expandable to 18750Hz
Resolution: 100,200,400,800,1600,3200 lines
Control range of performance: >90dB
Control strategy: single channel control, weighted average, maximum, minimum

Sine

Sine provides sinusoidal and sinusoidal sweep signals of analog quality and controls the amplitude of the sinusoidal waveform. The dwell level, dwell frequency can be set and the dwell duration can be determined by setting the time or the number of sinusoidal signal cycles.

Frequency range: 1Hz~5000Hz, expandable to 10000Hz

Closed loop time: 5ms

Harmonic distortion: <-100dB

Sweep mode: linear sweep 0~6000 Hz/min

Logarithmic sweep 0~100 Oct/min

Sweep direction: sweep up and down

Sweep duration: can be set to sweep frequency, time