A new class – for new ideas
VibroScan QTec measures 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. It determines operating waveforms 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. This means that larger measuring distances are realized. The combination with QTec® makes the Xtra laser insensitive to the angle of impact and surface.
The VibroScan QTec Scanning Vibrometer ensures maximum portability. 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
- AI-supported grid generation
- Extended evaluation and scripting options
- Open API and drivers
- Expandable to a 3D system
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.
3D is as easy as 1D
Connect three stand-alone VibroScan QTec and measure the three-dimensional vibration vector. With three synchronous measurements from three directions, all three dimensions of the vibration open up for analysis.
The hub synchronizes two additional 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 measurement spot. The results are automatically transformed into the FEM coordinate system and animated according to the direction of vibration.
Non-contact vibrometry for meso-components and microstructures
From cm² to the µm range: Learn how VibroScan QTec precisely characterizes the dynamic properties of small, embedded structures such as camera modules, MEMS microphones, or bonding wires, and how it extends the measurement setup into the meso and micro ranges with compatible additional optics.
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.
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 <10 mW |
| 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 | <4µm (3 overlapping beams) |
| Measurement field size | > 10 m² |
| Working distance | ~ 125mm … 100m |
| Measurement of small objects | Close-up Unit featuring Micro Scan Lenses or Microscope Extension |
| 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:
displacement, and acceleration, 16-bit, 960 MSamples/s
16-bit, 960 MSamples/s
|
| Signal generator output voltage | +/- 2 V (10 V with optional front-end or A-AMP-0001 amplifier) |
| Signal inputs | Vibrometer:
Front end (optional):
|
| Digital inputs/outputs |
|
Secure the investment
| Software updates | Online and offline with Polytec Update |
| Upgradable for 3D Measurements | yes |
| 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 |
| Portability | Compact Compact All-in-One-Design; suitable for checked airline baggage |
| 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 | n.a. |
| 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 |
| 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 small objects |
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 | Several vibrometers, including a 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) |
|
| 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. |
| 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 Precision 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.
PSV-A-711 Microscope extension
Microscope attachment for maximum resolution: spot sizes <2 µm, coaxial LED illumination, ideal for analyzing the smallest structures.
PSV-A-710-Xtra Close-up Unit
For close-up measurements, on small parts without parallax.
PSV-A-CL-Xtra-200 Micro Scan Lens
Parallelized beam path for measuring small components and on reflective surfaces. Requires close-up unit.
PSV-A-RLight LED Ring Light
LED ring light for illumination of small test objects. Requires PSV-A-710-Xtra Close-up Unit and PSV-A-CL-Xtra-200 Micro Scan Lens (fig. similar).
A-MIR-S001/ A-MIR-S002 Mirror set
Mirror set for measurements in difficult-to-access areas.
PSV-A-T19 Vertical Test Stand
Test stand for precise vertical positioning of the VibroScan QTec Scanning Vibrometer for measurement on small objects
PSV-A-T37 Vertical Holder
For convenient overhead vertical mounting of the scanning vibrometer, e.g. for shaker tests.
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 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 3D
VibroScan QTec Xtra 3D measures vibrations triaxially 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 3D 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.