research-educational test bench for rotating machinery diagnostics


AV TEST BENCH is a complete research-educational test bench for rotating machinery diagnostics. It consists of the mechanical part, the vibration based condition monitoring system and diagnostics software. The mechanical part, placed on a stiff support, includes two three-phase asynchronous motors with frequency inverters (one of them acting as propulsion, the other one as load), a gearbox, a shaft supported on three rolling element bearings (one of which is mounted on an adjustable screw, and can be used to apply vertical force to the shaft, thus loading the bearings supporting it). The shaft has got a disc with holes designed for imbalance simulation. The diagnostic part is comprised of a full featured condition monitoring system AVM 4000, four AVS1000 accelerometers, one rotational speed sensor and VIBnavigator software:

  • AV SENSOR 1000 ? general purpose industrial accelerometer with isolated AC output
  • AV MONITOR 4000  ? module for acquisition, conditioning and real-time data processing
  • VIBnavigator ? software for visualization and diagnostics with advanced signal processing algorithms


AV TEST BENCH enables:

  • analysis of real machine-induced vibration signals
  • study of diagnostic system design and configuration
  • programmable rotational speed and load
  • introduction of bearing load and faults
  • introduction of imbalance
  • introduction of misalignment
  • introduction of gear faults
  • study of structural vibrations (supporting base and bearing casings)

The system may include up to eight vibration input channels and two phase marker inputs. In the default configuration the test bench comes with four piezoelectric accelerometers and one rotational speed sensor. The sensors can be mounted in one of the prepared holes or with a magnet, in order to measure vibrations in a selected plane in selected construction nodes. The AV TEST BENCH allows full data acquisition and condition diagnostics with numerous charts (time view, frequency spectrum, frequency order spectrum, envelope analysis, trend diagram, synoptic view, and alarm list). The signals can be also easily connected to third party acquisition hardware through prepared BNC outputs.

AV TEST BENCH gives the opportunity to conduct academic research studies, and carry out a professional rotating machinery condition monitoring and diagnostics training.

System parts

Mechanical part:

  • steel frame
  • 2 three-phase asynchronous motors
  • one stage pararllel gearbox (i=2.91)
  • 2 frequency inverters
  • 3 couplings
  • 3 bearings with casings (1 mounted on adjustable screw)
  • RCD breaker
  • safety switch
  • steel shaft
  • disc with threaded holes
  • set of threaded weights for imbalance simulation
  • housing made of organic glass

Condition monitoring system part:

  • 4x AVS 1000 vibration sensors with connectors and cabling
  • 1 rotational speed sensor
  • AVM 4000 built-in module for signal conditioning and data acquisition
  • VIBnavigator license (educational version)


  • AV TEST BENCH manual
  • AVM 4000 system user manual
  • VIBnavigator software manual

AVTB addons:

  • AV TEST BENCH onsite / offsite training
  • laptop with preinstalled and configured VIBnavigator software acting as system server and workstation
  • additional AVS1000 sensors enabling advanced diagnostics
  • AVM 4000DC/P portable condition monitoring system (instead of built-in)




?We have been using AV TEST BENCH for several years. The stand is great for the implementation of research projects (we have done four already!). It was very useful in conducting an international doctorate as well. Moreover, it is functional and easy to expand.”

Kajetan Dziedziech PhD
Postdoctoral researcher

AGH University of Science and Technology


Interested in our offer?

Write to us

Petro Bratko
Petro Bratko
Key Account Manager
+48 662 022 128
+48 (12) 426 97 63

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