Sine Random Vibration Test System with MIL-STD Standard Lower Power Consumption

Vibration testing system Applications: automotive,electronics,aerospace,vessel,telecommunication,optoelectronics ,instrument etc.

Working Principle:

Specifications:

Vibration testing system Features

• Strength of the suspension system and linear motion guiding, strong carrying capacity, good guiding functions, high stability.
• Perfect performance on amplitude variation.
• High efficient on D Class power conversion, 3 - Sigma peak current, provide the optimization of power consumption and minimum harmonic distortion.
• Rapid self-test diagnostics and chain safeguard, high high safety and reliability
• Air gasbag isolation damping device realize the the vibration table with no need for special foundation. Perfect reappearance vibration waveform and the reduction of vibration transmission
• Different application on the vertical and horizontal tables.
• Simple operation for the controller.

1, How do you attach the hardware you’re testing to your shaker?

By means of a fixture, usually aluminum or magnesium for lightness coupled with rigidity. They can be cast, or smaller fixtures machined from solid stock. Most fixtures are welded.

2, How do you control shakers?

If we’re looking for resonances in the product we’re testing, we command the shaker to shake the product at one frequency at a time but to vary that test frequency, to sweep it over a range of frequencies.But more realistically, we command the shaker to vibrate randomly and to excite all the resonances simultaneously.Control commands go into the keyboard of a specially-programmed computer.

3, What are those resonances?Are they bad?

Have you ever noticed the steering wheel moving with rather large displacement amplitude, larger than the input to the column? That magnification is called resonance. Possibly it annoys you. There’s a slight chance that in a few years that whipping of the steering column might cause bending fatigue failure.When we shake an automotive or ship or land vehicle instrument, we're looking for, for example, portions of printed wiring boards (PWBs) responding with greater motion than we're inputting. That flexing may damage PWB wiring, it may damage the attached components, and it will damage the soldered connections between components and the PWB.

Detailed Pictures: