Reasonable Useful Vertical and Horizontal High Frequency Electrodynamics Type Vibration Tester

What's the difference between RANDOM & SINE test?

Sinusoidal vibration tests are not as helpful as random testing, because a sine test focuses upon a single frequency at any one time. A random vibration test, on the other hand, excites all the frequencies in a defined spectrum at any given time. Consider Tustin’s description of random vibration – “I’ve heard people describe a continuous spectrum, say 10-2000Hz, as 1990 sine waves 1Hz apart. No, that is close but not quite correct. Sine waves have constant amplitude and phase, cycle after cycle. Suppose that there were 1990 of them. Would the totality be random? No. For the totality to be random, the amplitude and starting phase of each slice would have to vary randomly, unpredictably. Unpredictable variations are what we mean by random. Broad-spectrum random vibration contains not sinusoids but rather a continuum of vibrations.”

Test system composition

1. One-piece horizontal vibration generator
2. Vertical expansion table
3. Cooling fan with muffler
4. Digital switching power amplifier
5. Multi-function vibration control measuring instrument.

Specification

ASLi (China) Test Equipment Co., Ltd is authenticated by competent testing centers, including the National Measurement and Testing Centerand South China Center of Metrology. Famous for precision and reliability, these products have been extensively used within the industry, by research institutions, quality inspection agencies, and colleges and universities both at home and abroad, serving a worldwide customer base.

With unmatched quality advantage, a dynamic management team, professional customer services, superb manufacturing techniques and innovative research and development ideas, ASLi (China) Test Equipment Co., Ltd, supported by an international, standard and professional quality policy, is gradually becoming an international brand. Its products are manufactured in consistent with a number of world standards, IE, ISO, ASMT, DIN, EN, GB, BS, JIS, ANSI, UL, TAPPI, AATCC, IEC, VDE, CSA and CEN.