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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 STIís 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