
Revolutionizing vibration measurement
Modular Fiber system for maximum flexibility: adaptable, precise, and ideal for a wide range of applications.
SMART Multi-Fiber revolutionizes laser Doppler vibrometry by supporting up to four flexible Fiber Heads for use in harsh environments and integrating advanced features such as multichannel data acquisition and a signal generator. This versatile vibrometer is ideal for industrial quality control and research, delivering precise, synchronized vibration measurements.

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Optomet Dual Fiber Technology for optimal signal quality
Optomet Dual Fiber Technology ensures outstanding signal quality and maximum flexibility. Separate fiber paths for transmitting and receiving signals effectively minimize unwanted reflections and ensure reliable signal transmission. Thanks to its modular architecture, different Fiber Heads—such as those with fixed focus, autofocus, or for 3D vibration measurements—can be exchanged quickly and easily. This allows the system to adapt flexibly to a wide range of measurement tasks without compromising precision or performance.

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Up to four simultaneous measurements
By integrating up to four interferometers into a single device, SMART Multi-Fiber enables synchronized vibration measurements across up to four channels. Multiple Fiber Heads acquire measurement data simultaneously and in real time—ideal for precisely analyzing complex vibration and motion patterns from different perspectives.

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Precise synchronization and unlimited scalability for complex measurement tasks
SMART Multi-Fiber offers virtually unlimited expansion by networking multiple devices via a single Ethernet cable. All systems are synchronized and connected directly to a computer for data acquisition and analysis. This innovative architecture enables simultaneous measurements at an unlimited number of points, perfectly synchronized with sub-nanosecond accuracy. With its unrivaled scalability and precision, SMART Multi-Fiber is the ideal solution for demanding measurement tasks requiring comprehensive, detailed analysis.
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Configure your SMART Multi-Fiber
Combine standard equipment and options to build your laser vibrometer.
Frequency bandwidth
Choose one tierUpgrades
Multiple selectionVelocity range
Choose one tierUpgrades
Multiple selectionMeasured quantities
Multiple selection05
Available Fiber Heads

Mid-Range Autofocus Fiber Head
- Dimensions (L x W x H)
- 159 mm x 43 mm x 68 mm (without lens)
- Working distance
- 135 mm to 10 m

Long-Range Autofocus Fiber Head
- Dimensions (L x W x H)
- 159 mm x 43 mm x 68 mm (without lens)
- Working distance
- 450 mm to 100 m

Compact Fiber Head
- Dimensions (L x W x H)
- 94 mm x 43 mm x 68 mm (without lens)
- Working distance
- 25 to 189 mm
Compact 3D Fiber Head
- Dimensions (L x W x H)
- 107 mm x 100 mm x 102 mm (without lens)
- Working distance
- 83 mm
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Technical data
- Measurement Quantities
- Velocity, displacement, acceleration
- Frequency range
- DC to 50 MHz Freely configurable low-pass filter for velocity, displacement, and acceleration signals
- Max. Speed
- 50 m/s
- Measurement Ranges
- Freely adjustable measurement range limits between 1 mm/s and 50 m/s for velocity—10 nm and 100 m for displacement—10 m/s² and 100 million m/s² for acceleration
- Signal Processing
- Digital (FPGA-based)
- Filter
- Low-pass filters defined by a selected frequency range Freely configurable high-pass filter for displacement Tracking filter: on / off
- User Interface
- 7" Full HD+ touchscreen with 1000 nits peak brightness
- Dimensions
- Length × width × height (without Fiber Head): 308 × 192 × 152 mm
- Weight
- ~ 5.6 kg to 6.4 kg + Fiber Head
- Power Supply
- 100 - 240 V AC (50-60 Hz) or 12 V DC
- Portability
- Convenient all-in-one design for effortless transport and easy setup
- Calibration interval
- Every 24 months (recommended)
- Working distance
- - Variable working distance from 25 mm to 100 m - Choice of different Fiber Heads
- Laser wavelength
- - Measurement laser: 1550 nm, targeting laser: 510-530 nm
- Laser safety class
- Measurement laser
- Output power: <10 mW, Class 1
- Targeting laser
- Output power: <1 mW, Class 2
- Optics
- Automatic and manual focusing
- Fiber optic cable
- 2 m as standard; optionally available with fiber-optic cables up to 50 m long
- Operating temperature
- -10 °C to 40 °C
- Storage Temperature
- -10 °C to 65 °C
- Relative Humidity
- Max. 80%, non-condensing
- Remote Control
- - Simultaneous connection and control of multiple vibrometers for reference, multi-point, and 3D vibration measurements
- Data Acquisition
- - Phase-coherent acquisition of vibrometer signals and reference channels - Convenient access to all data in a single software application—from vibrometers to multiple reference sensors - Live view of measured time-domain data - Multi-channel arbitrary waveform generator for generating predefined signals (sine, sine sweep, square wave, random, etc.) or custom signals from imported .csv or .wav files
- Measurement Analysis
- - Real-time Fast Fourier transform for responsive data analysis - Frequency-domain display with up to 536 million FFT lines - Phase-accurate calculation of the frequency response function (FRF) - Live spectrogram of ongoing measurement FFTs
- Data Import/Export
- - Export time- and frequency-domain data to .csv, .h5, or .mat files - Export time-domain data as a .wav audio file - Save and load projects in the native file format
- Frequency Options
- Frequency 250 kHz — Measurement of frequencies up to 250 kHz, covering the entire acoustic range and beyond (standard) Frequency 5 MHz — Measurement of frequencies up to 5 MHz (option) Frequency 15 MHz — Measurement of frequencies up to 15 MHz (option) Frequency 25 MHz — Measurement of frequencies up to 25 MHz (option) Frequency 35 MHz — Measurement of frequencies up to 35 MHz (option) Frequency 50 MHz — Measurement of frequencies up to 50 MHz, pushing the limits of what is technologically possible (option) Frequency Upgrade M — Increase the frequency limit of any option by 500 kHz (option) Frequency Upgrade L — Increase the frequency limit of any option by 1 MHz (option) Frequency Upgrade XL — Increase the frequency limit of any option by 5 MHz (option)
- Velocity Options
- Basic — Continuously adjustable velocity measurement range from 10 mm/s to 15 m/s (standard) High Speed — Measure velocities up to 25 m/s (option) Master — Measurement of velocities up to 50 m/s (option) Ultra — Measure velocities up to 50 m/s and gain access to the High Resolution Upgrade, offering a minimum velocity measurement range of 1 mm/s (option) High Resolution Upgrade — Minimum velocity measurement range of 1 mm/s (option) Velocity Upgrade M — Increase the maximum velocity of any velocity option by 2.5 m/s (option)
- Measurement Options
- Velocity — Measurement of vibration velocity (standard) Displacement — Measurement of vibration displacement with continuously adjustable ranges from 10 nm to 100 m (option) Acceleration — Measurement of vibration acceleration with continuously adjustable ranges from 10 m/s² to 100 million m/s² (option)
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Inputs and outputs

Analog signal outputs (BNC)
Power output for Fiber Head
Fiber-optic connector (LC duplex)
LEMO signal inputs (12 channels)
BNC RF signal inputs (up to 50 MHz)
Power button
USB port (Type-A)
Optical communication port
Ethernet port: for device communication/data
Power input
USB port (Type-C)
Ethernet port: for device communication/data
GNSS antenna connector
Multipurpose SMB connectors
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SMART Lab Software
Measurement software for the entire SMART series: synchronized acquisition, time and frequency domain analysis, and 3D model measurements.
SMART Lab Software: One Software for All Devices
Use SMART Lab software with all devices in the SMART series to unlock their full potential. Synchronized data from various devices is processed simultaneously, providing unparalleled flexibility for your measurement setups.
Measurements Supported by 3D Models
Easily measure complex structures with intelligent calibration and simple generation of measurement points. The fully automatic calibration process saves time and costs. Convincing vibration visualizations of complex structures are achieved through seamless animation of measurement data on the 3D models.
Advanced Capture and Analysis
Time and frequency data can be analyzed in real-time, even while the measurement is still ongoing. This allows you to check settings at the start of the measurement process and achieve faster and more reliable results.
SMART Multi-Fiber: Enhanced precision in vibration analysis
Featuring the Optomet Dual Fiber System for optimal signal quality, SMART Multi-Fiber takes laser Doppler vibrometry to a new level: Position up to four Fiber Heads independently of the Multi-Fiber housing wherever they are most useful. They withstand harsh environmental conditions, including ionizing radiation and extreme temperature fluctuations.
As part of the SMART series, Multi-Fiber is much more than a non-contact vibration measurement system. It is a universal laboratory in a single device, streamlining measurement processes in research and development with its unique combination of features: an arbitrary waveform generator, a versatile data acquisition unit, integration into a precisely synchronized vibration measurement array—all paired with unparalleled connectivity, including WiFi, Bluetooth, USB, and Ethernet.
With its ability to measure up to four vibration channels simultaneously, SMART Multi-Fiber is the ideal choice for industrial quality control and a wide range of other applications where precision is critical.
Vibration measurement in research, development and industry – Optomet offers the right solution for your requirements.
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