Product application

The EV series vibration test is to excite or impact a certain component or device to see how it will react in a real environment. This experimental systemThe application range is extremely wide, from circuit boards to airplanes,

Industrial products such as ships, rockets, missiles, automobiles, and household appliances.

Liangqi Technology can provide you with a complete excitation and testing solutionAnd according to national and international standards such as GB, GJB, UL, JIS, DIN, ISO, BS, MIL, IEC, and ASTM, we will certify for you

Understand the quality of the product.

Selection formula for vibration machine and structural diagram of vibration generator

① The testing conditions provided by your company;

② Test type: Sine sweep；Random；Shock

③ Frequency range: 2-2500Hz

④ Formula: A (g)=(2 π f) 2Dcm/980 ≈ A=0.002DmmF²D=A/0.002F²

F=M(kg)×A(g)

Selection formula for vibration machine and structural diagram of vibration generator

The testing conditions provided by your company;

Test type: Sine sweep；Random；Shock

Frequency range: 2-2500Hz

Formula: A (g)=(2 π f) 2Dcm/980 ≈ A=0.002DmmF²D=A/0.002F²

F=M(kg)×A(g)

Vibration table body

Moving coil

The vibration table is equipped with cast and manually machined moving coils, a photoelectric pneumatic load support system, and dual bearing axial guidance. Dual bearing guidance is a unique feature that, during vibration testing,

Helps to reduce dynamic axial crossing and rotation, with superior durability.

Excitation coil

Adopting a dual magnetic circuit structure, low magnetic leakage, and uniform magnetic field

Tai Tisurface

Adopting advanced phosphating treatment and automotive paint baking technologyIt has a long-term anti-wear and anti rust effect.

Platform cooling:

Adopting low-noise fans, improving the intake structure of the platform, using honeycomb air ducts for the excitation coil, double-layer diversion air ducts for the middle magnetic ring, etc., a new air duct design is adopted to enhance cooling

effect.

SA digital switching power amplifier

The SA series digital switching power amplifier adopts reliable MOSFET or IGBT technology

a. Has high stability and reliability

b. Complies with the requirements of the EU "CE" standard

c. Adopting sine frequency pulse width modulation technology, the power amplifier has a high signal-to-noise ratio.

d. Adopting the working principle of switch mode power supply, the conversion efficiency is high.

e. Adopting electronic automatic current sharing technology

f. Good safety performance.

Servo protection system

Complete protection functions, including overvoltage, undervoltage, phase loss, logic fault, power module direct connection, overheating, output overcurrent, output overvoltage, driving power supply, and platform displacement

Platform temperature, external interlocking, etc

Vertical Expansion Platform

The extension platform is usually used as a platform for larger installation specimens, which can be square, circular, or user-defined. In order to reduce the impact of the dynamic characteristics of the expansion platform, all extensions

Exhibition platforms must analyze their modal frequencies through modeling, and these extended platforms are generally cast from magnesium alloys with attached damping materials

Horizontal oil film slide table

The horizontal sliding platform design has high overturning moment and lateral restriction. This design concept, combined with standard horizontal sliding table devices, has high dynamic torque limitations while maintaining guiding oil

Membrane damping characteristics. The horizontal sliding table consists of a skateboard, a connecting head, a natural granite flat plate, a horizontal sliding table base, and an independent oil source.

Optoelectronic automatic centering system

Automatically adjust the position of the moving coil to maintain it in a balanced state. The automatic centering system ensures that the moving coil is always in the center position during loading and unloading processes.

Introduction to Digital Vibration Controller

The vibration controller adopts an advanced distributed architecture system, and the closed-loop control is implemented by a DSP processor. The PC is independent of the control loop, ensuring real-time and efficient control of the system

Timely and quickly respond to any changes in the testing system, ensuring stability and high precision of control. The hardware adopts a 32-bit floating-point DSP processor with a main frequency of up to 300MHz and a 24 bit resolution

The ADC/DAC, combined with high-precision floating-point digital filtering and low-noise design technology of hardware circuits, allows the controller to randomly control a dynamic range greater than 90dB and a signal-to-noise ratio greater than 100dB.

Characteristics of vibration controller:

aHigh performance and reliability

Closed loop control is achieved byDSPProcessor implementation,PCThe machine is independent of the control loop, ensuring real-time and efficient control of the system, and can respond promptly and quickly to any changes in the test system, ensuring

Reliability and high precision of control. All input channels have24 Bit resolutionADCLow noise hardware design, as well as built-in analog and digital anti aliasing filters, effectively ensure separation

High precision analysis.

bEasy to operate

Windows based application software is easy to operate and has rich auxiliary functions. The powerful automatic wizard and test report generation function of the system simplifies repetitive and tedious testing tasks

Single. The test parameter settings are rich and rigorous, and the USB 2.0 interface makes it more tightly and harmoniously connected to the computer.

c、Powerful functionality and flexibility

Vibration controller is a powerful vibration control platform that can complete multiple complex tasks. On the same hardware platform, configuring different application software can complete multiple analysis tasks,

To meet your different testing and analysis needs. The controller adopts a modular design, which can configure corresponding hardware and software according to different user needs to meet their different requirements.

dTest safety

The controller can provide small-scale signal control to obtain a preview of system vibration control; This method can help testing engineers determine the noise level in advance and roughly understand the system's transmission function

Numerical characteristics. There are also multiple security checks and interlock settings to ensure the maximum safety of testers, test objects, and vibration table equipment. If there is an abnormality in the system, it can be resolved immediately

Press the built-in termination button in the system to end the test

e.Test report generation

Support one click quick generationwordFormat orPDFThe format test report function allows you to obtain the current test results by simply clicking the report generation button. Describe the basic experimental control functions

When it comes to specific experimental setting parameters, from the control target spectral curve to the time-domain and frequency-domain curves of the experiment, everything is available. Convenient for you to select different optionsThe test report specification can be modified and produced directly

Print and print preview, and can be sent online.