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Store: Technical Paper - High Frequency Enveloping
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Description:
61 page booklet covering High Frequency Enveloping & Demodulation
Techniques
Part
Number HFE-1 (61 page booklet ) - $59
Highlights:
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This
paper will first define what is meant by the term "high
frequency enveloped and demodulated spectra".
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These
spectral techniques are used by a number of different vendors
and, basically, tend to function similarly.
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However,
there are slight differences or variations in the methods and
techniques which each vendor employs; and each vendor has their
own particular "name" they apply to such data.
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The
purpose of this paper will not be to compare which of the techniques
are better than others, but instead will concentrate basically
on how they function, what instrumentation is required, what
frequency setups should be employed (band-pass filters, low-pass
filters, high-pass filters, etc.), and what mounting techniques
as well as special treatments of mounting surfaces must be employed
to ensure successful measurement accuracy and repeatability
using these technologies.
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This
paper will also provide example spectra captured by data collectors
from several different vendors. The highlight of this paper
is a series of tables (Tables II thru IV) that will enable the
analyst to specify the proper band-pass, high-pass or low-pass
filter needed, depending on his particular analyzer in order
to effectively detect bearing, gear, and other faults in the
HFE spectra and waveforms.
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Finally,
information will be provided on how high frequency demodulated
spectra can be used to detect problems with bearings, gears,
lubrication, rotor rub and certain electrical anomalies.
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For
more detailed information, please call Technical Associates of Charlotte,
send us an email, or use our quick & convenient Online
Request Form. |
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Call Technical
Associates @ 704-333-9011 |
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