- Register
Your SDT Ultrasound Detector
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Ultrasound Tip - Combine Pressure with Ultrasound for
Tightness Testing Volumes
- PdM 2008
- Predictive Maintenance Technology Conference & Expo
- Level 1
Certification Training Schedule - Next Course
PITTSBURGH, PA
- Time and
Frequency Analysis Software - 21 Day Trial Download
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September 2008 |
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Register Your
SDT Ultrasound Detector |
Allan Rienstra,
Editor
The Ultrawave Technology Report |
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Registering your SDT equipment is a fast and easy
way of making sure we have an accurate record of
your ultrasound equipment. By keeping track of your
equipment it is our hope that our service
professionals can better serve you when it comes
time for repairs, calibration, replacement
batteries, and other spare parts. We can also let
you know if there has been an update to your
system's firmware, or other product enhancement and
advancement that you want to know about.
Registering your product with us is not mandatory,
and failure to register your product WILL NOT
diminish your limited factory warranty. I look at
product registration as one more vital step toward
ensuring you get the most from your ultrasound
program, and your equipment investment.
We
respect your privacy and want you to be sure that
any data submitted on our website is kept for our
own use, which is to better serve you.
To
register your SDT Ultrasound Detector click here |
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Ultrasound Tip -
Combine Positive Pressure with Artificial Ultrasound for
Tightness Testing Volumes |
Example: Testing
tightness of hatch cover onboard ship. |
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Checking
large volumes for leaks is done by placing an ultrasound
transmitter inside the test volume and then scanning the
seal points (doors, windows, vents, etc…) with an
ultrasonic receiver. Leaks are identified by an abrupt
increase in ultrasound levels as the inspector passes
over the seal area. Rubber seals and gaskets are leak
culprits but their faults can be masked during static
testing.
Applying a
positive pressure inside the volume, in conjunction with
the ultrasound transmitter, greatly increases the
inspector’s chance of finding leaking seals and
gaskets. The pressure gently plies on the seals
shifting them away from their rest position and
potentially exposing any faults that could affect their
ability to tightly seal. For volumes such as clean
rooms, where tightness is crucial, the inspection should
be performed twice; once in conjunction with pressure,
and then again without.
The picture
to the left represents how an ultrasonic tightness test
is done on a ship's hatch cover using ultrasound
generated artificially by the SDT08 multi zone
transmitter. A ship's hatch is too large to apply
positive pressure, so this tip would not apply. However
this tip does apply to smaller, and tighter volumes.
In the hands
of a properly trained inspector this method can prove
fast, efficient, and useful means of ensuring the
tightness of virtually any neutral pressure volume.
Click to
learn more about the SDT170MD Tightness Test Kit |
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PdM 2008 Predictive
Maintenance Technology Conference & Expo |
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SDT is SILVER
SPONSOR
Come meet SDT at
PdM-2008, the Predictive Maintenance Technology Conference &
Expo from September 15-18, 2008 in America's Heartland -
Omaha Nebraska.
This
conference is designed for predictive maintenance beginners and
seasoned condition monitoring professionals. |
Acoustic
Vibration Monitoring for Conditioned Based Lubrication,
by Paul Klimuc, SDT
Session Date: Tuesday September 16 (4:00 - 4:45PM)
Condition Based
vs. Time Based Lubrication of Bearings
Bearings
lubricated on a time based schedule are more prone to
premature failure than bearings that follow a condition
based schedule. In a time-based scenario lubricant is
rarely added at the exact time it is needed; allowing
the bearing to run "dry" for extended time frames. When
the bearing is finally greased the amount of lubrication
can be too little or too much. In either case the
implications for bearing life are negative.
A condition based
schedule involves frequently monitoring the bearing to
establish normal baseline friction levels. As the job of
lubricant is to reduce friction, it stands to reason
that increased baseline readings would indicate a need
for re-lubrication. Monitoring friction levels while
lubricating serves as a guide to prevent over
lubrication.
A simple and
common approach to monitoring and setting baseline
friction levels is with an ultrasonic data collector.
These portable instruments use high frequency
piezoelectric sensors to detect, measure, and trend
ultrasonic signals from rotating equipment. Friction
from the bearing excites the sensor which in turn
produces a micro volt charge which is accurately
measured and referenced to a decibel log scale. This
data is displayed onscreen and stored to the internal
data collector. It can then be transferred to PC where
for further analysis. As a rule any bearing with a
measured ultrasound value 8-10 dBµV over its baseline
should be greased using the acoustic lube method.
Join Paul Klimuc and
the SDT Team in Nebraska for PdM 2008 |
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Paul Klimuc -
Speaker, PdM 2008 |
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Ultrasound Training Schedule |
Next Training -
Pittsburgh, PA - October 7-9 |
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2008 Training Schedule
Nashville - Sept 23-25
Singapore - Sept 24-26
Pittsburg - Oct 7-9
Seattle - November 4-6
Atlanta - December 2-4
Click To Register |
Debra Smith,
SDT Level 1 Ultrasound Instructor |
Getting
everything you should from your Airborne Ultrasound
Program? Join us in Pittsburgh, PA - October 7-9
SDT's Certification training is designed to kick start
new and existing ultrasound inspection programs in any
facility, in any manufacturing environment. Our
trainers' field experience is second to none, and,
because we manufacture ultrasound equipment, we are
better positioned to teach you how to use it.
Join
Debra Smith, SDT Level 1 Instructor, as he delivers one of
the most requested training courses in America, SDT's
Level 1 ASNT Approved Ultrasound Inspector Training.
Click here
to download printable registration form |
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Download 21 Day
Trial Version |
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As
predictive maintenance professionals, determining the
condition of our production machinery means interpreting
data from various sources including vibration analysis,
balancing reports, thermography scans, and oil analysis
lab results. The latest discipline for predictive
maintenance technicians involves analyzing ultrasound
signals captured from their ultrasound inspection meter.
By looking at ultrasound files in the time and frequency
domain a lot can be learned, and confirmed, about the
health of machines.
Test drive SDT's AVM Ultranalysis Software.
SDT170
lets you HEAR MORE, AVM Ultranalysis lets you SEE MORE. |
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We take your privacy
seriously |
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The Ultrawave
Technology Report is published regularly by SDT North
America and is intended to provide information to anyone
with an interest in this technology about current and future
events. If you have questions about this email or the
format in which it's received please contact Allan Rienstra.
If you do not wish to receive these updates you can request
removal from the list at anytime by sending an email to
allan@sdtnorthamerica.com.
You can also
reach us by telephone at (905) 377-1313 (International) or
1-800-667-5325 (USA & Canada)
SDT North America, PO Box 682, Cobourg, ON - K9A 4R5 |
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