Scanning laser Doppler vibrometry is a full-field vibration imaging measurement technique in which the vibrometer measurement beam scans the test object and records the vibration data of a grid of measurement points within a short time.
The Optomet scanning laser Doppler vibrometer (SLDV) combines the superior signal quality of the Nova SWIR digital vibrometers with beam deflection mirrors, a HD video camera, an integrated signal generator and inputs for reference channels. With the OptoSCAN software, the scanning laser vibrometer becomes a turn-key and intuitively operated vibration visualization system. In conjunction with the OptoGUI software, the SLDV can be operated as a single-point vibrometer.
The non-contact vibration measurement of any test structure provides precise and valuable insight into the structure’s dynamic behavior. Operating and structural vibrations can be animated, resonances identified, finite element model calculations validated, or the energy propagation of surface waves made visible.
State-of-the-art Scanning Laser Vibrometry
Optomet pioneered the world’s first short-wave infrared (SWIR) laser-based scanning laser Doppler vibrometer which eliminates the need for surface treatment and produces the highest quality data through superior measurement sensitivity.
Maximum Sensitivity due to the Largest Optical Aperture
The Optomet scanning laser Doppler vibrometer has the industry’s largest optical aperture, maximizing the collection of reflected laser light. This ensures the highest possible measurement sensitivity even at points with minimal laser backscattering.
Measurements on Any Surface
By combining the ultra-high sensitivity of the Optomet scanning laser Doppler vibrometer with the superior signal quality of the SWIR laser technology, even surfaces with minimal optical reflectivity and at the greatest measurement distances can be accurately measured. Test objects with varying surface reflectivity and complex geometries are measured by the Optomet scanning laser Doppler vibrometer in one measurement process, without the measurement surface having to be prepared with reflective film.
User-friendly Measurement Software
The OptoSCAN scanning laser vibrometer software is the industry’s most user friendly and modern user interface which enables even inexperienced users to efficiently obtain precise measurement data. For details see Software / OptoSCAN.
Features of the Optomet Vibrometers
Features common to all Optomet SWIR digital laser Doppler vibrometers include ultraDSP universal digital signal processing, real portability, intuitive hardware and state of the art software are described in more detail in the product-overview.
Characteristics – Scan Laser Vibrometer
- Compact, truly portable and intuitive Handling
- SWIR laser source and large aperture with best optical sensitivity
- Open data and control interfaces
- Vibrational velocities up to ±30 m/s
- Displacement resolutions down to 50 Femtometers
- End-to-end digital workflow
- 3 analog outputs with a sample rate of 160 Msamples/s
- GBit Ethernet Digital Output
- Remote update und upgrade via Ethernet
A detailed list of all vibrometer characteristics, including all hardware and software features, can be found in the vibrometer data sheet in Support & Datasheets.
Laser Vibrometer Measuring- & Data Acquisition Software
OptoGUI Software
OptoGUI is an extensive and intuitive software for remote control, data acquisition, and data analysis when working in single-point mode. Data transfer is realized via a loss-free digital Gigabit Ethernet connection. Click for detailed information about OptoGUI.
OptoSCAN
OptoSCAN is an extensive and intuitive software for remote control, data acquisition, and data analysis when working in scanning mode. Data transfer is realized via a loss-free digital Gigabit Ethernet connection. Click for detailed information about OptoSCAN.
Available Decoders
A wide variety of high-performance real-time decoders are available for the evaluation of the interferometric measuring signals. The Optomet UltraDSP technology enables the measurement of frequencies up to 25 MHz and vibrational velocities up to 25 m/s with the Nova-Series, displacements can be resolved to less than 100 fm. All vibrometers incorporate a velocity decoder, and displacement and acceleration decoders are optionally available. Numerous measuring ranges per decoder ensure that measurements can always be performed with the optimum sensitivity.
Decoders can be easily retrofitted or upgraded. Start with a basic system and adapt the capabilities of the measuring instrument as required. This requires no return of the instrument to the factory and no waiting times for your production or research project. The table below provides an overview of the configuration options. We will also be happy to assist you in the selection of the best decoder for your measuring task.
