Besides Accelerometers come at industrial Vibration measurement and when measuring vibrations especially Laser vibrometer for use. The data obtained is often fed into a control system that enables real-time monitoring and analysis. This can be used for preventative maintenance and improving operational efficiency. Here we present the manufacturers' new technical developments.

Optomet vibrometer

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Laser scanning vibrometer software for vibration measurement

April 30.04.2021, XNUMX | The Optoscan software from optomet is used for data collection, analysis and visualization. In combination with an Optomet scanning vibrometer, it forms the optimal solution for imaging vibration measurement. If you combine the sampled, point-by-point measurement data in the correct phase, meaningful representations of vibrations and waves on the test object can be obtained.

optoscan was developed as a technical tool for efficient and simple use. Many representations of time and frequency are available for all relevant evaluations for the results of the vibrometer software.

The modern 64 bit multithread Vibrometer application is particularly fluid to use even with large amounts of data. A live analysis of the measurement data during the measurement process is also possible. The vibrometer software can be used on a standard PC under Windows 10. Data acquisition, analysis and clear visualization are child's play on almost any device.

Software the hardware settings are made and the components are controlled by the laser scanning vibrometer. The video camera and measuring laser are calibrated, decoders and measuring ranges are defined, channels for measuring signal and reference signal are defined and the integrated signal generator is controlled.


Interferometer for simultaneous length and angle measurement


Grids for the measuring points can be created and edited with just a few clicks. Self more complex geometries can thus be described intuitively. After determining the bandwidth, measurement duration, frequency resolution and quality requirements for the point-by-point measurements, recording begins. A color coding of the grid points shows the respective progress of the measurement of vibrations and waves and provides further information.

Presentation, evaluation, storage of the measurement results

The Measurement results are clearly displayed in diagrams. The shapes of the vibrations are shown two-dimensionally as a map or as three-dimensional animated time courses. It is easy to switch between time display and frequency display. This enables a detailed analysis of the measurement results.

Transfer functions, resonances, operating oscillations, oscillation modes or wave propagation are clearly presented. The results are already visible during the measurement. The complete evaluation is possible after the measurement or offline. The results can be communicated efficiently and appropriately using integrated video tools.

Measurement projects are of course saved clearly and are available again for a subsequent evaluation with all settings. Extensive export data are available for further processing of the measurement data. The exchange with third-party programs such as modal analysis or with standard software such as Matlab is problem-free via open and documented file formats.

Become a new user intuitiv guided through the measurement process. For easy operation, the structure of the user interfaces is based on the typical measurement sequence.

  • Define measurement project
  • Select channels and measuring ranges to be measured
  • Define measurement geometry
  • Set exposure parameters
  • Display and analyze measurement results.

Laser vibrometer for field study and condition monitoring

 

28.04.2021/XNUMX/XNUMX | That Laser vibrometer "Vibrogo" from Polytec was developed as a Laser Doppler Vibrometer for on-the-go oscillation and vibration measurement. It is suitable for vibration measurement in field studies through to condition monitoring of machines and systems. The oscillation measurements and vibration measurements are carried out in a non-contact manner.

The laser Doppler vibrometer comes with a large one frequency Bandwidth from DC to 100 kHz very flexible. The high linearity of the vibrometer over the entire measuring range and the very good resolution of the vibration speed make up the precision measuring device.

With the measurements made by the laser vibrometer Vibrogo users can get to the bottom of the phenomena of acoustics and dynamics in technology and nature. The Vibrogo serves as a basic device for Product development, Research and quality assurance worldwide.

The auto and remote focus of the laser vibrometer makes it easier to align the laser measuring point with the DUT. Users select the desired frequency directly on the device via a touchscreen and quickly measure vibration speed, amplitude and acceleration. High-pass filters and frequency bandwidth filters reliably isolate interference signals.

The Laser Doppler vibrometer from Polytec is suitable as a mobile one Precision measuring device for measurements on the go or for outdoor use for measurements in Research or industry. The vibrometer detects machine vibrations at a safe distance even in areas that are difficult to access or even hazardous areas. The Vibrogo is controlled and the data is transferred via Ethernet or wirelessly via WLAN.

Vibration measurement is easy in the app

25.02.2016 | ACE Shock expands the range of useful apps Vibration measurement. With the “Vibrochecker PRO” software for the iOS operating system, users with an iPhone or iPad can calculate vibrations and shocks easily, professionally and quickly.

The previous version Vibrochecker Since its introduction in 2014, it has served thousands of users as a mobile vibration and vibration meter. It was voted winner of the 2014 Automation App Awards in the “Engineering App” category by readers of the electrical engineering magazine.

While with the free Vibrochecker you can quickly and easily check vibrations on machines and components Frequency range up to 50 Hz can be measured, the new Vibrochecker PRO app extends this range to up to 8000 Hz. This is made possible by simply connecting an external sensor to the iPhone or iPad via the Lightning or USB interface and activating it via the app.

Compared to previously heavier measuring systems, this new combination provides users with very powerful and inexpensive measuring equipment with a total weight of less than 1 kg. In the range up to 50 Hz, both vibrocheckers and Vibrochecker PRO optionally those integrated into iPhone and iPad Accelerometeren, gyroscopes and microphones.

In the areas above, the connection of Vibrochecker PRO with the external USB sensor Digiducer 23D333, which is not included in the nominal fee of 01 euros for the app, ensures even more professional measurements of up to 8000 Hz.

Source: This article is based on information from the following companies: ACE, Optomed, Polytec.

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Author information
Angela Struck

Angela Struck is editor-in-chief of the development scout and freelance journalist as well as managing director of Presse Service Büro GbR in Ried.