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Predictive Acoustical Detection

Monitoring of bearing assemblies and gearboxes

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PAD GmbH

PAD GmbH is the only company in Germany that manufactures devices and systems based on sound emission technology for diagnosing gears and bearings.

The use of the latest monitoring technology developed by our company has the following advantages for our devices over existing types of diagnosis:

  • High reliability of diagnosis (up to 98%, as opposed to the existing 60-70%);
  • High speed of information processing, which meets modern requirements
  • Detection of the deterioration in the lubricating effect of the assembly at the initial stage, when it is possible to maintain its performance

Acoustic emission method

The key to the success of our acoustic and emission diagnostics is the control of the assemblies for the parameters that react most sensitively to changes in their technical state, the detection of defects in the initial stage of destruction.


The software package of systems and devices from PAD GmbH is used together with the most common operating systems and is intended to provide the user with all necessary reports on the technical status, including the announcement of the remaining service life / resource development.


Our devices guarantee the safe operation of gearboxes and storage units of devices and systems in power engineering, transportation, mining, aviation - i.e. in practically all branches of industry.


The monitoring of these assemblies with the help of data processing and modern communication systems enables with minimal costs:

  • Significantly increase the service life of the assemblies.
  • Reduce repair costs.
  • Predictive and targeted planning and implementation of repair processes.
  • Avoid unexpected failures during operation.

Our products

PAD offers solutions for three fields of application: a portable, single-channel readout device, a mobile multi-channel system, for example for railways and a stationary system.

ARP-11

Portable single channel device

ARP-11/7

Mobile multi-channel system

SPIDER-11

Stationary surveillance system

Industry sectors

All of the above devices and systems have proven themselves in the following industries in Russia:

  • Benefits

    "The damage detection of competing systems works via vibration, heat or acoustics and only detects damage at a very late stage or cannot precisely localize it."

    • Direct information on the remaining service life .
    • Early detection of potential sources of error before the occurrence of damage (repair options can still be initiated).
    • Permanent monitoring (real time).
    • Increase in the service life / service life of all system parts.
    • Reduction of downtimes, repair parts and storage costs for spare parts.
    • Detection of all possible error sources and types of errors.

    Different diagnostic systems in comparison

    Acoustic emission
    Vibration
    Thermal
    Acoustically
    Advantage
    • Detection of defects in the early stages of development
    • Continuous real-time monitoring
    • Individual control of the remaining service life of the assemblies in operation
    • Complex diagnosis of the assembly as a whole
    • Reduction of downtimes
    • Reduction of repair costs
    • Continuous real-time monitoring
    • Possibility of trend forecasting of the technical condition
    • Very simple system control
    • Cost-effective diagnostic method
    • Continuous real-time monitoring
    • Inexpensive diagnostic method
    Disadvantage
    • Complexity of the diagnostic systems and software
    • Identification of intermediate stage damage
    • Low sensitivity to smear defects
    • Identification of only advanced damage
    • No predictive statement on the remaining useful life
    • Identification of only advanced damage
    • Low sensitivity
    Acoustic emission
    Advantage
    • Detection of defects in the early stages of development
    • Continuous real-time monitoring
    • Individual control of the remaining service life of the assemblies in operation
    • Complex diagnosis of the assembly as a whole
    • Reduction of downtimes
    • Reduction of repair costs
    Disadvantage
    • Complexity of the diagnostic systems and software
    Vibration
    Advantage
    • Continuous real-time monitoring
    • Possibility of trend forecasting of the technical condition
    Disadvantage
    • Identification of intermediate stage damage
    • Low sensitivity to smear defects
    Thermal
    Advantage
    • Very simple system control
    • Cost-effective diagnostic method
    Disadvantage
    • Identification of only advanced damage
    • No predictive statement on the remaining useful life
    Acoustically
    Advantage
    • Continuous real-time monitoring
    • Inexpensive diagnostic method
    Disadvantage
    • Identification of only advanced damage
    • Low sensitivity

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