Comparing Vibration Readings Comparing Vibration Readings
Comparing vibration level readings taken by
different types of instruments and transducers can be very confusing and can lead to
mistrust of the systems involve |
Field Application Note: Reverse Dial Alignment
Courtesy of STI Vibration
Monitoring Inc.
www.stiweb.com
Misalignment can be the most usual cause for
unacceptable operation and high vibration levels. New facilities or new equipm |
Plumb Line Measurement Application Note Courtesy of Damalini Measurement of straightness and center line relative to an absolute plumb line is done on for example
turbine and generator shafts. The measurement program uses |
Straightness Measurement
Application Note Courtesy of Damalini Straightness measurement is done on a large number of applications, for example balks, rolls, machine
constructions, transportation lines etc. The basic |
Differential / Rotor Expansion Differential / Rotor Expansion
Differential Expansion (DE) and/or Rotor
Expansion (RE) are very important measurements usually supplied by the Original Equipment
Manufacture (OEM) as part of a |
Eddy Current (Proximity Probe) Transducer Installation: Part 1 Radial Vibration Eddy Current (Proximity Probe) Transducer Installation: Part 1 Radial Vibration
Eddy Current Transducers (Proximity Probes) are
the vibration transducer of choice when installing vibrat |
Fault Detection / OK Circuits Fault Detection / OK Circuits
Over the years, two methods of vibration transducer
fault detection have become prominent: OK Circuits
and Fault Detection Circuits. The objective of b |
Journal Bearings Journal Bearings
Industrial machinery with high horsepower and high loads, such
as steam turbines, centrifugal compressors, pumps and motors, utilize journal
bearings as rotor supports. |
Reciprocating Compressors Reciprocating Compressors
Reciprocating
Compressors are utilized in all manufacturing industries. Because these machines
are capable of providing high pressure along with variable loading, |
Reverse Dial Alignment Reverse Dial Alignment
Mis-alignment can be the most usual cause for
unacceptable operation and high vibration levels. New facilities or new equipment
installations are often plagued |
System Response System Response
An understanding of how a spring mass system
responds to vibratory influences is helpful in understanding, recognizing and solving many
problems encountered in vibrati |
Turbine Supervisory Instrumentation Turbine Supervisory Instrumentation
Improve Reliability and Performance with a TSI from STI Vibration Monitoring
STI’s Turbine Supervisory Instrumentation (TSI) Systems provide cont |
Interpretation of the International Standard ISO 10816-3 Part 3: Industrial machines with normal power above 15kW and nominal speeds between 120 and 15,000 RPM when measured in situ. Second Edition 2009-02-01 Classification according to machine type, rated |