Measurement Computing Medallion Rotate rev.2.3 - Manual (Page 8)

8
Medallion Rotate Manual October 2000
O
VERVIEW OF
M
EDALLION
R
OTATE
Medallion Rotate is a powerful software package for analyzing noise and
vibration in mechanical equipment. It includes a set of analytical functions that
process machine speed (tachometer) and time waveform (data) signals from
almost any type of sensor.
Medallion Rotate is designed for Engineers and advanced machinery
analysts who diagnose vibration, acoustic, and other problems. Medallion
Rotate takes raw time waveform data as the input, and lets you analyze the data
in many different ways to support the clearest diagnosis. However, you must
understand the machinery and be able to identify the frequencies originating
from the different components.
One of the many advantages is that you can collect hours of time
waveform data, then pick out only the few minutes of interest. Medallion Rotate
is fast, and provides the following analysis functions.
• Tachometer analysis processes a machine speed signal (pulsed or DC
voltage) to create the instantaneous machine speed curve in RPM.
• Waterfall analysis computes and displays multiple spectra over time in a
traditional 3-dimensional Waterfall plot or Color Contour plot.
• RPM from Waterfall analysis allows you to compute an instantaneous
speed curve from a time waveform (data) when you do not have or
cannot use a tachometer on a machine.This allows you to accurately
determine the machine speed in many cases without a tachometer.
• Computed Order Tracking shows you the magnitude and phase change
for multiple orders over time in a Bode plot.
• Order normalization order normalizes the data when performing a
Waterfall analysis.
• Torsional vibration analysis creates an accurate kinematic description
of torsional vibrations from a single tachometer or other machine speed
signal.
• Millstrum analysis in Medallion Rotate Plus simplifies the process of
identifying families of harmonics and sidebands.
• Advanced plotting features such as sophisticated cursors simplify
identifying the spectral peaks in Waterfall and Contour plots.
• Medallion Rotate can import time waveform data from many sources,
including Teac, Sony, HP-SDF, Zonic Medallion, Vibe-Tech, ASCII,
WAV, MATLAB, Dactron, SDRC-UFF, MEGADAC, Nicolet Prism,
Nicolet NRF, STAC Rex, and SoMat Ease.
• If you have the ME’Scope™ program from Vibrant Technology, you can
export computed order tracking data to ME’scope for operating
deflection shape analysis.