A new class – for new ideas
VibroScan QTec Xtra 3D measures three-dimensional vibrations in a new way - non-contact and with unprecedented precision. With its groundbreaking multi-path interferometry and diversity combining, QTec® sets new standards in terms of optical sensitivity and interference immunity.
With three synchronous measurements from three directions, all three dimensions of the vibration open up for analysis. The hub synchronizes the vibrometers with picosecond accuracy. MIMO-capable signal generators included. The PSV software takes over the guidance, detects the position of the individual VibroScans QTec in relation to the object, synchronizes the three laser beams and guides them over the measurement object in a μm-sized measuring spot. The results are automatically transformed into the FEM coordinate system and animated according to vibration direction.
VibroScan QTec Xtra 3D determines operational vibration modes and eigenmodes for NVH, acoustics, structural dynamics, ultrasound, FEM validation and non-destructive testing and offers frequency ranges up to 32 MHz. With its SWIR wavelength, the Xtra Laser brings more power to the measurement. The combination with QTec® makes the Xtra laser insensitive to the angle of impact and surface, making it ideal for 3D measurements. The VibroLink Ethernet data interface reliably transmits vibration measurement data to your notebook and serves as an automation interface.
Get in touch with our experts
Get in touch with our experts
Let’s talk! We will find the right solution for your needs.
Highlights
//- Non-contact and full-field with FEM-like spatial resolution
- Best SNR on technical surfaces
- Up to 10x faster with QTec®
- Upgradeable to up to 30 m/s vibration velocity and 32 MHz
- Advanced geometry handling for meaningful result presentation
- AI powered grid generation
- Extended evaluation and scripting options
- Open API and drivers
Faster results with QTec® multi-path interferometry
The patented QTec® multi-path interferometer technology boosts the signal quality of infrared laser vibrometer (SWIR) decisively. It provides highest optical sensitivity for high-fidelity measurements on all surfaces, which significantly reduces testing time – even on dark, biological, rotating or moving objects. This safe laser technology is perfect for challenging applications also on distant targets. QTec® makes vibration measurements faster, easier and more reliable than ever – for the most robust, unambiguous results.
Experience the new VibroScan QTec in a video presentation
With the new VibroScan QTec, we are taking reliability, flexibility and speed in non-contact vibration measurement to a whole new level. In this webinar recording, our expert Jörg Sauer takes you into the world of groundbreaking QTec technology and the new VibroScan QTec for your modal analysis, acoustic and NVH measurements, operational vibration analysis and product development.
Videos
VibroScan QTec – a new class for new ideas
Get to know a new technology for full-field optical vibration measurement. VibroScan QTec is the most compact scanning laser vibrometer featuring the unrivaled data quality based on patented multi-path interferometry. The video shows how you can transfer measurement quality and productivity to your applications and easily expand VibroScan QTec to 3D vibration measurement capability.
QTec® multipath interferometry for fast and efficient vibration measurement
The patented QTec® laser technology reinvents laser vibration measurements by eliminating the root cause of noise, delivering superior optical sensitivity and enabling high-fidelity measurements on all technical surfaces – whether rotating, moving or dark. In order to achieve this, QTec vibrometers from Polytec use an innovative multi-path interferometry with diversity reception, that balances the information from the highest signal level of each path with patented algorithms, resulting in an always stable signal. This patented laser technology leads to faster, easier measurements and consistent results for all research, development and production testing efforts.
Automatic 3D alignment
New machine-vision techniques make the non-contact VibroScan QTec Xtra 3D Scanning Vibrometers as easy to use as any handy single-point laser vibration sensor while minimizing training needs. For high fidelity data especially from high frequency tests on medical tools as well as for measuring stress and strain, automatically aligning the 3 superimposed lasers is the key.
Here, the machine-vision based feature “3D alignment scan” guarantees µm-precision in X, Y and Z enabling faster test setups and highly reliable measurement results.
Customize your triax scanning vibrometer
With the right accessories, you can measure even the smallest components, localize and trigger noise, master even complex geometry and measurement setups and measure in tough test bench conditions or wind tunnels. Machine vision tools simplify the test setup and professional CAE interfaces support FE model validation, both modal and stain-based, allowing direct import of geometry files. The advanced geometry handling enables meaningful result presentation, granting precise insights into your vibrating structure, its dynamical behaviour and acoustics.
The automation interfaces make complex evaluations with MatLab™ or your own programs just as possible as the complete automation of a modal test. Polytec offers ready-made solutions for small to large measurement objects.
VibroScan QTec – patented data quality
Do you want to generate areal vibration data quickly and reliably? Scanning laser Doppler vibrometers with QTec® multi-path interferometers are your solution. Simple, fast, reliable.
- Enhanced signal quality for even higher reliability
- Up to 10x faster measurement
- Increased flexibility with a user-friendly setup
- First HeNe with QTec®
- Improved technical specifications
Specifications
Measurement characteristics
| Max. Frequency Bandwidth | DC bis 32 MHz |
| Measurands | velocity, displacement, acceleration |
| Max. velocity | 30 m/s |
| Velocity ranges | 1 mm/s bis 30 m/s |
| Best resolution velocity | 4 nm/s/√Hz |
| Best resolution displacement | < 0.1 pm/√Hz |
| Max. acceleration | 10000 km/s² |
| Signal Processing | Dual FPGA design, 960MSamples/s |
Optics
| Optical design | Patented QTec® heterodyne multi-path interferometer utilizing reception diversity. |
| Optical Signal Robustness (OSR) | 10,000 mm/Dropout, Speckle-free measurment |
| Signal optimization | 3 steps |
| Speckle tracking | 3 steps |
| Measuring laser | Wavelength 1,550 nm (SWIR: infrared, invisible), laser power < 3,3 mW (automatic adaptation) |
| Pilot laser | Wavelength 520 nm (green), laser power <1 mW, dimmable in 5 steps |
| Pilot laser angular deviation | << 0.03° |
| Laser noise | Linewidth (Lorentzian) <100 Hz (determines distance-dependent noise) |
| Laser wavelength | Stability +/- 50 pm |
| Laser MTTF | > 100,000 h expected (SWIR laser) |
| Laser wavelength pilot laser | 510–530 nm (green) |
| Laser safety class | Class 2 |
| Smallest laser spot | <30µm (3 overlapping beams) |
| Measurement field size | several m² |
| Working distance | ~ 500mm … 10m |
| Measurement of small objects | down to mm² range |
| Focusing | Manual and software-controlled focusing |
| Geometric measurement | LiDAR Sensor coupled to scanners |
Camera
| Camera resolution | Full HD |
| Zoom | 120x |
| Optical zoom | 30x |
| Viewing angle | 63,7° (wide) to 3,2° |
Scanning
| Scan angle | 50° × 40° |
| Angular resolution | <0.0008° |
| Point stability | <0.001°/h |
| Max. scan points per second | 50 |
| Scan point density | 512 × 512 scan points, configurable for higher resolution |
| Scanner control | via software, external control interface for tracking and continuous scanning vibrometry |
Connectivity
| Communication interfaces | Ethernet, WiFi, external scanner control |
| Synchronization between components | 80 MHz Clock,star shaped distribution |
Data acquisition
| Signal outputs | Vibrometer:
|
| Signal generator output voltage | +/- 10V |
| Signal inputs |
|
| Digital inputs/outputs |
|
Secure the investment
| Software updates | Online and offline with Polytec Update |
| Extended manufacturer warranty | 5 years |
System
| Configuration and Data Acquisition Software | PSV Software, pre-installed on the high-performance laptop included in the package. Alternatively: Can be run on any high-performance Windows 11 laptop |
| Operating temperature | -10 °C … +45 °C (14 °F ... 149 °F), passive fanless cooling up to 40°C (104°F) |
| Power consumption | <70 W typical per Scanning Vibrometer; < 300 W total system |
| Portability | Compact All-in-One-Design |
| Dimensions Vibrometer (W × L × H, including handle) | 187 x 391 x 177 mm (7.3 x 15.4 x 7.0 in) |
PSV Software
Setup
| Workflow | Step-by-step user guidance from setup to measurement |
| Calibration of laser movement | Automatically or manually via image processing |
| Setup of the vibrometer in the room | Automated 3D alignment with 30 µm accuracy (3-laser beam superposition) |
| Geometries for defining measurement points |
|
| Geometry measurement | 3D geometry via integrated distance sensor |
| Geometry import | Universal File Format (UFF, UNV), STL, OBJ, PLY, ASCII (CSV), ASAM ODS (some optional) |
| Geometry and texture import option | OBJ, PLY for photorealistic representation of ODS |
| Geometry editing option | Refinement, coarsening, creating connections |
| 3D Geometries - edge detection | Detection of laser shadowing on 3D edges with a definable tolerance range |
| Displacement compensation of the measurement grid under load | Image processing with marker tracking |
| Focus assignment | Automated or manual assignment to points or components |
| Calibration of the pilot laser offset to increase local precision | Yes, for strain measurement |
Data acquisition
| Central data model | Open SVD file format (vibration data from vibrometers and external sensors, video images, measurement settings) |
| Synchronization of measurements between system components | automatic |
| Synchronization of multi-device setups | Ethernet, trigger |
| Remote control of vibrometers | Multiple vibrometers for 3D measurements, including reference vibrometer |
| Signal waveforms from the signal generator | Predefined signals (sine, random, chirp, burst, sweep) and user-defined signals, including uncorrelated signals for MIMO |
| MIMO measurements | Principal Component Analysis (PCA), partial coherence |
| Real-time signal analysis | Yes, triggers intelligent averaging and signal enhancement |
Data evaluation
| Analysis (spectral) |
|
| Analysis (deflection shapes / ODS) |
|
| Stress and Strain calculation option |
|
| Analysis (time, rotational speed, order) |
|
Data import and export
| Import and export filters |
|
| Export of animations of modal shapes or time data (wave propagation) | Animated GIF, MP4, WMV |
Automation & Scripting
| Programming Interface (API) | Programming and scripting interface Polytec File Access: API for retrieving, programming, and scripting via external applications that support the Component Object Model (COM), e.g., Visual Basic .NET®, C#, MATLAB®, LabVIEW™, and Python(TM). |
| Macro programming | Compatible with Visual Basic® for Applications (VBA) for automating test routines and evaluations. Includes sample macros for a quick start. |
| Robotics Interface | RoboVib Software (KUKA) and RoboVib Bench Software (automation using a turntable) |
| Drivers | Open-source drivers (Linux, Windows) for integration into external applications, with programming examples in C++, Python, LabVIEW, and MATLAB |
Postprocessing
| SignalProcessor | Spreadsheet for applying mathematical operations to measurement data. Suitable for real-time data and post-processing. (optional) |
Software maintenance
| Basic software maintenance | 1 year of software updates included |
| Advanced software maintenance | Additional maintenance and software updates. Available in 12-month increments. |
| Software option package for universities | Software options bundle including lifetime software maintenance for universities and education (terms and conditions apply). |
Downloads
Accessories and components
PSV-G-700 High Precison Geometry Scanner
Integrated high-performance laser distance sensor for measuring the sample geometry from the scanning vibrometer perspective.
PSV-A-526 Protective Window
Protects the scanning mechanism against dust, wind and acoustic excitation at high dB levels.
A-MIR-S001/ A-MIR-S002 Mirror set
Mirror set for measurements in difficult-to-access areas.
PSV-A-T51 Motorized Tripod
Convenient motorized support for three scanning heads. Saves time when rearranging the setup and allows for elevated measurement positions.
PSV-A-T34 Table Tripod
Rigid support of 3 scanning heads. Provides a configuration optimized for in-plane performance with small parts.
PSV-A-T35 Table Tripod
Rigid support of 3 scanning heads. Provides a narrow configuration optimized for out-of-plane performance with small parts.
PSV-A-655-S Alignment Object (Set)
Precision patterned and lightweight CFRP plate including
adjustable stand for automatic 3D alignment.
PSV-A-018 System Cabinet
Ergonomic mobile workstation with storage for all parts and accessories.
A-RMK-0004 Rack Mounting Kit
Rack installation kit with two front handles and mounting brackets for installing the PSV-F-700 VibroScan Front-end in a 19" rack.
Scalable Automatic Modal Hammer SAM
Excitation of sample for experimental modal tests with repeatable force level. Broadly configurable and avoids double hits reliably.
Qsources Qlws LightWeightShaker
The Qsources Qlws LightWeightShaker is a self-supporting, self-aligning dynamic decoupled electromagnetic shaker specifically developed for modal testing and consistent repeatable structural excitation in a limited space.
A-AMP-0001 Amplifier for signal generator
Amplifies the max. 2 V output signal of the to max. 10 V with a bandwidth of up to 32 MHz.
PSV-A-EXT External Scanner Control
Allows for an additional control of the scanning mirrors by external voltage signals. Enables Continuous Scanning Vibrometry and tracking applications.
PSV-A-430 Acoustic Gate Unit
Activates the gate input if a noise exceeds a certain threshold. Suitable for event trigger applications such as brake squeal measurements.
Related products
VibroScan QTec Xtra
VibroScan QTec Xtra measures vibrations in a new way - without contact, full-field and with unprecedented precision. With its groundbreaking multi-path interferometry, QTec® sets new standards in terms of optical sensitivity and interference immunity. The Xtra, based on an infrared (SWIR) laser is characterized by the highest optical sensitivity to guarantee highly accurate measurements even on demanding technical surfaces. VibroScan QTec Xtra ensures maximum portability through integrated data acquisition and signal generator up to 32 MHz.
VibroScan QTec Neo
VibroScan QTec Neo measures vibrations in a new way - without contact, full-field and with unprecedented precision. For the first time, QTec® technology has been successfully transferred from the infrared SWIR laser to the visible helium-neon laser. Featuring a small laser measuring spot, the precise helium-neon laser is suitable for measurements on the finest structures and even measures in and through water. QTec® always ensures a stable signal and the best signal-to-noise ratio. VibroScan QTec Neo ensures maximum portability with integrated data acquisition and signal generator up to 32 MHz.
PSV Software
The PSV Software is the heart of every Polytec full-field vibration measurement system. This comprehensive software package allows the fast and simple acquisition, display and editing of vibration measurement data gathered with all VibroScan QTec Scanning Vibrometers, the MSA Micro System Analyzer series for microscopic observations or the automated structural test station RoboVib®.
RoboVib®
By combining a 3D scanning vibrometer and an industrial robot, RoboVib® forms an automated test station for measuring everything from complex components to complete vehicle bodies. Reduce testing time and expenses as well as time to market significantly in experimental modal analysis. Conduct comprehensive 360° testing of a vehicle body, for example, within only one-two days and overnight instead of weeks of preparation with conventional test setups.
RoboVib® Bench
RoboVib® Bench enables automated and full-body experimental modal analysis using Polytec’s optical 3D scanning laser vibrometers. Its easy to set-up hardware and software integrates seamlessly into the Polytec scanning vibration measurement workflow and saves time by automatically repositioning the devices-under-test (DUT) instead of a manual and tedious relocation of the sensor setup. 360° measurements of the DUT are as easy as a measurement from just one side.
PolyWave
PolyWave - the scalable software package for comprehensive analysis of vibration test data offers a seamless post-processing, making your vibration analysis with Polytec laser Doppler vibrometers more efficient than ever.
Automation
Polytec offers intuitive and powerful interfaces and options for remote control and automation of measurement data acquisition and evaluation. Speed up your tests by automating recurring measurements and evaluations, integration into your own testing software via driver, remote adjustment of measurement settings, querying and monitoring the device status and more.
No budget? Just measure.
Whether you need contract measurements, equipment rental, or leasing, our scalable services deliver precise data—without the overhead of major investments. Ideal for short-term projects, occasional use, or limited budgets.
With PolyFlex you get results without compromising timelines or budgets.