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 →
This blog will provide simple steps allowing the use of a signal generator to create and observe “leakage”, and to apply windows and observe the effects on the frequency spectrum Continue Reading →
A customer in India placed an order for two LE-4022 shakers in a multi-shaker system to replace their existing shakers from a competitor. Data Physics shakers would have to fit Continue Reading →
The Data Physics SignalStar Vector control system is commonly used in the automotive industry for durability testing of engine crankshafts. The crankshaft is an engine component that converts the reciprocating Continue Reading →
Phase is one of five key measurements fundamental to vibration analysis on large, critical, rotating machinery. Along with vibration amplitude, frequency, form, and shaft position, phase is a vital measurement Continue Reading →