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Introduction to Machinery Vibration (IMV) CAT-1 Vibration Institute USA CAT-1 Certification Exam Prep Course


This course prepares registered students to perform a range of simple, single-channel machinery vibration condition monitoring and diagnostic activities. It is recommended for individuals as an introduction to machinery vibrations and as partial preparation for the ISO 18436-2:2014 Vibration Analyst Category I Certification Exam. Workshops and demonstrations are scheduled throughout the training course to reaffirm curricular theory and applications.

Key Take-aways

  • Evidence of training in accordance with ISO 18436-2
  • Awareness of key International Standards covering vibration condition monitoring
  • How to select the correct measurement location and axis, and collect good, repeatable measurement
  • What the Fmax resolution, averaging and other analysis setting mean, and how to select the optimum setting for a wide variety of machine types
  • How to analyze vibration spectra, time waveforms, envelope (demodulation), and phase measurements
  • How to diagnose a wide range of fault conditions: unbalance, eccentricity, misalignment, bent shaft, cocked bearing, looseness, rolling element bearings faults, journal bearing faults, gearbox faults, resonance, and other conditions
  • How to set alarm limits manually and with statistics

Course Content

Vibration: definitions, sources, effects, uses, predictive maintenance, measurement concepts, equipment.

Workshop I: Vibration Demonstrations and Workshop Questions Introduction to Machinery Vibrations I Physics, units, properties, measurement conventions, motions, amplitude, frequencies, time, frequency, and orbital domains.

Workshop II: Definitions, Terminology, Measurements, Demonstrations Introduction to Machinery Vibrations II Measures, conversions, analysis, excitation, natural frequencies, resonance, and critical speeds.

Workshop III: Measure Analysis, Natural Frequencies, and Demonstrations Introduction to Data Collection Physical observations, sensors, frequency spans, measures, triggering, sensor mounting and location, instrument.

Workshop IV: Data Collection Demonstration and Workbook Questions. Introduction to Machine Knowledge Fault sources, frequencies, design and function of machines. Introduction to Vibration Testing Periodic and permanent monitoring, machine analysis (fault and condition), acceptance testing.

Workshop V: Vibration Testing Introduction to Spectrum Analysis Frequency identification and matching and procedures.

Workshop VI: Spectrum Analysis and Demonstrations Introduction to Common Machine Faults Mass unbalance, misalignment, looseness, bearing defects, and electrical defects

Workshop VII: Fault Analysis Introduction to Vibration Severity Criteria, procedures, charts on housings, shafts, and bearings.

Workshop VIII: Vibration Severity Course Review Training Examination on Course Content (One hour) Training Examination Review


Category 1 Certified Persons shall be able to perform a range of pre-defined, generally simple single-channel, machinery vibration condition monitoring activities in accordance with established procedures. All activities shall be performed under direction. 

Personnel classified to Category 1 shall at least:

  • Know the basic principles of vibration and recognize the different units of measurement;
  • Be able to collect reliable data ensuring appropriate standards of repeatability; 
  • Be able to identify errors in collected data;
  • Be able to retrieve pre-defined measurement settings for use with VA equipment and transfer data from an analysis system to a computer-based system;
  • Be able to compare overall or single-value vibration measurements against pre-established alert settings;
  • Be able to identify deviations from the norm for single-value vibration values and trends;
  • Report on visual observations of equipment condition


  • Course Reviewer
  • Training Examination on Course Content (One hour)
  • Training Examination Review