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              Vibration Control Systems

An Introduction to Vibration Testing on Shakers
Vibration testing is essential to prevent catastrophic design failures for industries like automotive, aerospace, electronics, and military. Crystal Instruments provides precise and accurate shaker controllers to perform common tests such as Random, Sine, Shock and TWR. The fourth generation of vibration controllers is network based, infinitely scalable, and capable of very high channel count operations.

Swept Sine Testing with Vibration Controllers
Sine tests are a popular method to simulate real-world vibration because most rotating machinery creates vibrations of a sinusoidal nature. When shakers vibrate according to a Sine profile, they reflect the types of vibrations often found in automobiles, airplanes, factories, and many types of pumps and engines. Crystal Instruments designed the fourth generation vibration controllers that uses the latest technology.

Random Testing with Vibration Controllers
Random Vibration Control provides precise multi-channel control in real time. The device under test is subjected to true random noise with a precisely shaped spectrum with either Gaussian or non-Gaussian amplitude statistics. With a control dynamic range up to 90 dB, up to 512 channels can be enabled for Control, Notching, Monitoring and time data recording.

Shock Control by Crystal Instruments
Like other types of vibration tests, shock tests, are used to measure the reliability and durability of the object under test. Classical Shock Control provides precise, real-time, multi-channel control and analysis of a transient motion in the time domain. Classical pulse shapes include half-sine, haversine, terminal-peak sawtooth, initial-peak saw tooth, triangle, rectangle, and trapezoid.

Time Waveform Replication Testing
In addition to the three major test types of Sine, Random and Shock, Crystal Instruments also offers Time Waveform replication, or TWR. This is a method to exactly recreate, or replicate, a vibration in its time waveform format on a shaker system. The data is typically taken from a field environment. TWR allows engineers to accurately reproduce the data collected in the field.

EDM VCS Tutorial: Set-up a Random Test on EDM
Anastassia Tolpygo's quick walk-through on how to setup a Random test. For more information, contact us at 408-986-8880 or


Dynamic Signal Analyzers

CoCo-80X Handheld Dynamic Signal Analyzer: An overview of the portable CoCo-80X. For more information, contact us at

CoCo-80X Tutorial: Overview of CoCo's operation in Vibration Data Collector (VDC) mode featuring Walter Kemphaus.

CoCo-80X Tutorial: How to configure the display. Walter Kemphaus's quick walk-through on how to operate the CoCo-80X.
For more information, contact us at 408-986-8880 or email

CoCo-80X Tutorial: Overview of CoCo-80X operation in Dynamic Signal Analysis (DSA) mode by Walter Kemphaus, Crystal Instruments Product Manager.