Explain the mechanism of vibration test system

Tests for mechanical vibration are conducted using the “vibration test,” an established technique for gathering consensus on the product’s performance and quality to derive accurate results that allow for objective identification. A vibration generator is used to accomplish this test.
The loud speakers of audio systems are used as the vibration generators in the vibration test systems. Instead of using a sound source to power the vibration generators, they use vibration controllers.

Principle
Loud speakers produce sound by amplifying and converting electrical signals (such as those from CDs) that are fed into the system. When it comes to testing vibration test equipment, vibration generators are like loud speakers in sound systems.
Instead of using a sound source to power the vibration generators, the amplifiers are powered by vibration controllers. When transducers are used to track the movements of specimens and/or vibration tables, signals from the transducers are sent back to the vibration controllers to change the vibrations to meet the test parameters.

Vibration test system
Fleming’s left-hand rule is the foundation of this procedure. Electromagnetism makes a force that goes against both the direction of the current and the direction of the magnetic field.
Vibration controller
It is impossible to reproduce the identical waveform of vibration even with the observed vibration data linked directly to the power amplifier and stimulated. Depending on the parameters of the power amplifier and the vibration testing device, the shape of the wave could be very different.
These qualities are reflected in the vibration controller, which is utilized to create the desired vibration automatically. K2 is an IMV-developed vibration controller, and we’re always looking for ways to make it more user-friendly and more effective, all while paying close attention to what our customers have to say.

Types of vibration tests
Here, you will learn about three different kinds of vibration tests.

Sine vibration test
It is possible to deliver a fixed-period vibratory stimulus or to offer a fixed-period vibratory stimulus that is sweeping. Also, a sweep test may show the sample’s natural frequency (and, by extension, how vulnerable the product is) if it is done near buildings with high natural frequencies, such as those with fans and motors.
LISUN has the highest quality vibration generators.

Random vibration test
Since it is impossible to predict the amplitude or frequency of an irregular waveform in real time, statistical analysis is the only way to accurately describe it.
Fast vibration test for resonance phenomena may be performed since many frequencies can be vibrated simultaneously while adding random vibration. Cars and rockets go through the atmosphere and into outer space with this kind of vibration from the road.
There is a possibility that the vibrations that occur might be referred to as random vibrations.

Shock vibration test
It does exactly what it says on the tin: it reproduces the sound of a desk being struck by a van or a vehicle being hit by a bus. The IMV controller also uses the horizontal axis to make the oscillation that copies the waveform on the time axis.

Lisun Instruments Limited was found by LISUN GROUP in 2003. LISUN quality system has been strictly certified by ISO9001:2015. As a CIE Membership, LISUN products are designed based on CIE, IEC and other international or national standards. All products passed CE certificate and authenticated by the third party lab.

Our main products are Goniophotometer, Integrating Sphere, Spectroradiometer, Surge Generator, ESD Simulator Guns, EMI Receiver, EMC Test Equipment, Electrical Safety Tester, Environmental Chamber, Temperature Chamber, Climate Chamber, Thermal Chamber, Salt Spray Test, Dust Test Chamber, Waterproof Test, RoHS Test (EDXRF), Glow Wire Test and Needle Flame Test.

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