KINGDOM Pty Ltd has released a version of the powerful and precise Dynamic Signal Processor (DSP) hardware called QUATTRO that provides stand alone rotating machinery shaft balancing.
‘The Signalcalc-BALANCE on Quattro’ (SBQ) is a highly portable and rugged instrument using a powerful 24 bit DSP engine and is provided with its own balancing software running under Windows operating system.
It requires no FFT analysis software to support it, thus providing a very cost effective single plane balancing solution.
The QUATTRO hardware weighs only 475g and measures 160mm long including the BNC connectors, 100mm wide and 25mm thick. It also provides real time analysis of sound and vibration with a dynamic range in excess of 120 - 130dB due to its true 24 bit analogue to digital conversion and a real time rate of 107kS/sec or 205kS/sec optional.
QUATTRO uses a USB2 interface connection to the host computer, notebook or desktop. USB2 provides file transfers 40 times faster than USB 1 or 1.1.
The application is divided into three simple and intuitive steps. The first allows for definition of the number of balance planes, the maximum allowable vibration at each balance plane and the setup of vibration channels and tachometer input, which is used to provide a measure of the rotor speed during balancing and also a phase reference.
The second step is designed to give users an interactive drawing board for definition of the rotor geometry.
The final step is dedicated to the balancing measurements and features a balancing wizard that leads the user through the required balancing steps.
Vibration measurements for all balancing planes may be viewed in either the time or frequency domain and the addition of trial masses are shown clearly in the ‘rotor’ view. Measurement results and calculated final correction masses are neatly arranged in a tabular format.
In operation, the tachometer set up ensures jitter free triggering for the synchronous averaging of vibration required for accurate balancing runs and offers a variety of conditioning tools for any type of tachometer.
Input channels may be defined in units of acceleration, velocity or displacement and the maximum allowable vibration limits for each balance plane may also be defined in any of these units.
A complete suite Dynamic Signal FFT analyser software can also be added to the QUATTRO hardware for all general vibration and acoustic applications.