Automated Diagnostics for Rotating Machinery (ADRM)
in a Predictive Maintenance Program


Crystal Instruments has used its extensive experience in signal analysis instrumentation design to solve one of the biggest problems in Predictive Maintenance. Vibration analysis of rotating machinery offers excellent return on investment and covers more machine types and faults than any other condition monitoring technology. However, this has always come at a high price. In the past you needed teams of vibration analysts to go into the plant to take vibration and process data, bring it back to the office, upload it to PCs and then start reviewing hundreds of vibration signatures on machines looking for the few that may be exhibiting symptoms of a problem. Another stumbling block was database setup; it could take months to set up the database, create measurement points and set alarm bands or envelopes so that analysts did not have to review every measurement on every machine every time. Many programs simply failed to get through the initial phases and start realizing the benefits of machinery condition monitoring.

In conjunction with development programs for the US Navy, Crystal Instruments has developed its ADRM (Automated Diagnostics for Rotating Machinery) system. Using the latest technology in hardware design for its vibration data collectors, online monitors and modern software programming techniques, ADRM is far easier to set up and use than any previous machinery condition monitoring program available. By simply acquiring several sets of data on a machine, or one set of data on several identical machines, the system establishes what normal vibration and process data should be and from that point forward, any statistically significant change in operation will be captured and automatically analyzed. ADRM includes an automated diagnostic system for vibration and process variables, allowing a team of analysts to monitor and diagnose a far greater number of machines in less time.

Every machine is built from various components, such as electric motors, bearings, shafts, couplings, gearboxes, belt drives and so on which all have their own specific fault frequencies in vibration analysis. When a problem with any component starts to occur, the vibration signal changes in predictable ways that vibration analysts use to determine the exact cause of the problem. The logical steps in diagnosing these faults are well known and are used to train and certify vibration analysts around the world. Crystal Instruments has used its software expertise to combine vibration data acquisition, database management and analytical rules to create an automated diagnostic system.

To make it easy to set up, we created a machine modeling system and library for your use. Most common machine classes have already been created and modeled in the system for automated diagnostics. For machine types that are unique to your operations, you may create your own using our Machine Builder that includes all the common machine components and corresponding rules for analysis. You can even modify, add and create your own analysis rules for unique components and machines.

At the end of the day, a vibration analyst or team will need to review the system’s diagnoses of machines that are exhibiting problems, decide whether the recommended course of action is appropriate and make their final recommendations for repairs or replacement. The system is designed to log this decision-making process as well, as the reviews are annotated by each analyst and passed up to operations and management.

For large scale operations with many machines, or service companies with many clients in many locations, the ADRM system is ideal. There is no limit to the number of plants, areas, machines or amount of data acquired, and the system can be expanded as your operations grow. Multiple licensed users will be able to use the system from any location and work concurrently in their own languages and new users can be added at any time.

For more detailed information, please download the ADRM Brochure.

Route-Based Periodic Condition Monitoring

  • Design and manage monitoring relational database
  • Measure consistent error-free data along route
  • Make voice-annotated data recordings of problems
  • Upload data to PC; generate alarms and reports
  • Make at-machine diagnostic measurements
  • Perform 1 and 2 plane rotor balancing

Periodic Monitoring Solutions

Machine Condition Monitoring Solutions