Condition Monitoring - the use of specialist equipment to measure the condition of operating machinery. Vibration Analysis, Tribology and Thermography are all examples of Condition Monitoring techniques.
Condition Based Maintenance is an equipment maintenance strategy based on measuring the condition of equipment in order to assess whether it will fail during some future period, and then taking appropriate action to avoid the consequences of that failure. The condition of equipment could be monitored using Condition Monitoring, Statistical Process Control techniques, by monitoring equipment performance, or through the use of the Human Senses. The terms Condition Based Maintenance, On-Condition Maintenance and Predictive Maintenance can be used interchangeably.