This is part one in a series of articles about how to evaluate the quality of a vibration control system. In each we will present important features of the control Continue Reading →
Aliasing is an interesting phenomenon, whose understanding is useful when selling or using dynamic signal analyzers and controllers. Although all Data Physics equipment and most modern analyzers virtually eliminate this Continue Reading →
With the tragic earthquake and resulting tsunami in Japan last year, there is an increased focus on ensuring that critical equipment can withstand earthquake forces. The Data Physics SignalStar Vector Continue Reading →
Multishaker testing has been growing in popularity over the past several years. This testing is done not only in the automotive industry, but across the board in the Aerospace, Defense, Continue Reading →
Offering most shaker systems involves more than just selling the shaker. It involves understanding the accessories and options required for the user’s application. Most importantly, the shaker system needs to Continue Reading →
Shock Response Spectra (SRS) are now widely used in many industries. Data Physics analyzers and controllers make the process of measuring Shock Response Spectra and producing transients from a given Continue Reading →
The question of “when do we have to choose the optional welded magnesium Drive Adapter” has come, so we wanted to take this opportunity to explain the typical rule of Continue Reading →
To effectively understand dynamic signal analyzers and vibration controllers, this article aims to describe basic dynamic signal analysis concepts. Many dynamic data processing techniques involve transforming the data to the Continue Reading →
Piping Analysis in Industrial Process and Power Generation Applications; a view into how our analyzers can be applied In this article we examine virtually every aspect of rotating machinery analysis Continue Reading →
This article, and the upcoming sequels, will take a fresh look at how to correctly select the right size electrodynamic shaker for each application. Reviewing this topic should help those Continue Reading →
Data Physics was the first to market very high resolution random control – 6400 lines of resolution. The use of narrowly spaced spectral lines in random control has both positive Continue Reading →
The demand for very large force shaker systems is increasing. Typically this is met with large electrodynamic shakers (approximately 45klbf to 60klbf). However, larger shakers have limited frequency range. Shakers Continue Reading →
Coherence is the measure of how much of a response is due to the (known) excitation. This is easily measured when the excitation is broadband and it is possible to Continue Reading →
The fundamentals of signal processing are important for users of test instrumentation. To understand dynamic range, it helps to start with the basics of digitizing data. As an analog signal Continue Reading →
Modal analysis is the study of dynamic characteristics of a structure under test. The purpose is to identify the Modal parameters of the structure under test. Modes are inherent properties Continue Reading →
The latest release of SignalCalc Turbo, version 2.0.198, includes a valuable new feature called Virtual Probe Rotation. Frequently requested by turbomachinery manufactures and rotating machinery engineers, Virtual Probe Rotation greatly Continue Reading →
Discussions about dynamic range are most often concerning dynamic signal analyzers. However, a large dynamic range is perhaps even more beneficial for closed loop vibration control. In vibration control applications, Continue Reading →
A drive adapter is basically what its name states: an adapter that connects the shaker to the slip plate. The drive adapter provides a transition from the shaker’s armature pattern Continue Reading →
In the recent past, we have been asked by several customers, distributors, and employees, why the cross axial stiffness numbers for SignalForce shakers appear to be smaller than the numbers Continue Reading →
As each shaker is manufactured, Data Physics gathers Voltage vs. Current (VI) curves for that particular model. The VI curves show the voltage and current output from the amplifier to Continue Reading →