Nova Series:
Digital Free Beam SWIR Laser Vibrometer

The Nova series is a modern and digital free beam laser Doppler vibrometer (LDV), which works with a SWIR measuring laser (Short-Wavelength-InfraRed; SWIR). The Nova series is essential when every decibel is important for the signal level or exceptional dynamic range is required. Typical scenarios relate to structures that reflect visible light poorly, such as dark and rough surfaces or biological tissue. Even when measuring over long distances, for example in construction or on glowing surfaces such as turbine blades in the aerospace industry or in vehicle and plant construction, the signal strength is crucial.

Measurements on carbon composite panels or other non-cooperative materials can be carried out just as easily as measurements at distances of more than 200 m, without the need to treat the surface of the measurement object.

Infrared Laser Vibrometry – Measure on all Surfaces!

The short-wave infrared (SWIR) laser source installed in the Nova series enables measurements without surface treatment even on the most difficult surfaces with a high signal-to-noise ratio (SNR), be it deep black, incandescent metal or glass.

Higher Laser Power

The wavelength of 1,550 nm used allows an output power up to 10 mW, being ten times higher compared to HeNe systems. Nevertheless, maximum eye safety with laser protection class 1 is given.

Efficient Photodetectors

Photodetectors in this wavelength range have an efficiency of more than 98%. In conjunction with the higher laser power, the signal level is 20 dB higher than that of conventional laser Doppler vibrometers.

Stability

With just a single longitudinal laser mode, the sensitivity is independent of changes in the measuring distance. The immediate operational readiness of the device after switching on and stability against fluctuations in the ambient temperature are further advantageous properties.

Benefits of the Optomet Vibrometers

Further properties common to all Optomet vibrometry systems such as universal digital signal processing, real portability or intuitive hardware and software are described in more detail in the product-overview.

Characteristics - Nova Series Laser Vibrometer

Non-contact vibration measurement up to 25 MHz
End-to-end digital workflow
15 velocity-, 19 displacement- und 15 acceleration measuring ranges
Vibrational velocities up to ±30 m/s
Displacement resolutions down to 50 Femtometer
Decoder remote update- and upgradeable
Higher signal level due to SWIR laser, independent of working distance
Coaxial, green targeting laser
Digital- and analog output
Compact and portable All-in-One design
Intuitive Handling
High power efficiency

Technical Specifications

A detailed list of all vibrometer characteristics, including all hardware and software features, can be found in the vibrometer data sheet in Support & Datasheets.

Category	Characteristics
Laser source	SWIR-Laser
Laser wavelength	Measurement laser: 1550 nm
	Targeting laser: 510-530 nm
Laser class	Measurement laser: output power: <10 mW, class 1
	Targeting laser: output power: <1 mW, class 2
Measured quantity	Velocity, Displacement, Acceleration
Frequency bandwidths	DC to 25 MHz
Max. vibrational velocity	25 m/s
Output signal (digital)	GBit-Ethernet (RJ45) / WiFi
Output signal (analogue)	3 x Standard BNC connectors
Signal processing	Digital (Optomet UltraDSP)
User interface output	Color screen 3.5" + 20 segment LED bargraph
User interface input	Touch screen, knobs with push-button, key switch (power)
Dimensions	Length x width x height (excluding handle and lens): 380 x 180 x 148 mm
Weight	8 kg
Mounting	Standard tripod screw thread
Power supply	110 -240V AC (50-60Hz) oder 12V DC
Power consumption	27 Watt
Operating temperature range	0°C to 40°C

Laser Vibrometer Measuring- & Data Acquisition Software

Single Point Laser Vibrometer Analysis 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.

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.

Start

Decoder Name	Number of measuring ranges	Max. vibrational velocity	Frequency	Comments
Velocity Decoder D-VD-0N	7	2.5 m/s	DC - 100 kHz	required
Displacement Decoder D-DD-0N	19			optional
Acceleration Decoder D-AD-0N	7			optional

Basis

Decoder Name	Number of measuring ranges	Max. vibrational velocity	Frequency	Comments
Velocity Decoder D-VD-1N	8	5 m/s	DC - 500 kHz	required
Displacement Decoder D-DD-1N	19			optional
Acceleration Decoder D-AD-1N	8			optional

Sense

Decoder Name	Number of measuring ranges	Max. vibrational velocity	Frequency	Comments
Velocity Decoder D-VD-2N	11	5 m/s	DC - 1 MHz	required
Displacement Decoder D-DD-2N	19			optional
Acceleration Decoder D-AD-2N	11			optional

Sense Remote

Decoder Name	Number of measuring ranges	Max. vibrational velocity	Frequency	Comments
Velocity Decoder D-VD-2N-R	11	5 m/s	DC - 25 kHz	required
Displacement Decoder D-DD-2N-R	19			optional
Acceleration Decoder D-AD-2N-R	11			optional

Sense Speed

Decoder Name	Number of measuring ranges	Max. vibrational velocity	Frequency	Comments
Velocity Decoder D-VD-2N-12	12	12 m/s	DC - 1 MHz	required
Displacement Decoder D-DD-2N-12	19			optional
Acceleration Decoder D-AD-2N-12	12			optional

Speed

Decoder Name	Number of measuring ranges	Max. vibrational velocity	Frequency	Comments
Velocity Decoder D-VD-3N-12	9	12 m/s	DC - 2,5 MHz	required
Displacement Decoder D-DD-3N-12	12			optional
Acceleration Decoder D-AD-3N-12	9			optional

High Speed

Decoder Name	Number of measuring ranges	Max. vibrational velocity	Frequency	Comments
Velocity Decoder D-VD-3N	11	25 m/s	DC - 2,5 MHz	required
Displacement Decoder D-DD-3N	19			optional
Acceleration Decoder D-AD-3N	11			optional

Ultra High Speed

Decoder Name	Number of measuring ranges	Max. vibrational velocity	Frequency	Comments
Velocity Decoder D-VD-3N-30	12	30 m/s	DC - 2,5 MHz	required
Displacement Decoder D-DD-3N-30	19			optional
Acceleration Decoder D-AD-3N-30	12			optional

High Frequency

Decoder Name	Number of measuring ranges	Max. vibrational velocity	Frequency	Comments
Velocity Decoder D-VD-4N	9	12 m/s	DC - 10 MHz	required
Displacement Decoder D-DD-4N	19			optional
Acceleration Decoder D-AD-4N	11			optional

Master

Decoder Name	Number of measuring ranges	Max. vibrational velocity	Frequency	Comments
Velocity Decoder D-VD-5N	14	25 m/s	DC- 10 MHz	required
Displacement Decoder D-DD-5N	19			optional
Acceleration Decoder D-AD-5N	14			optional

Master+

Decoder Name	Number of measuring ranges	Max. vibrational velocity	Frequency	Comments
Velocity Decoder D-VD-5N-25	14	25 m/s	DC- 25 MHz	required
Displacement Decoder D-DD-5N-25	19			optional
Acceleration Decoder D-AD-5N-25	14			optional

Master++

Decoder Name	Number of measuring ranges	Max. vibrational velocity	Frequency	Comments
Velocity Decoder D-VD-5N-30	15	30 m/s	DC- 25 MHz	required
Displacement Decoder D-DD-5N-30	19			optional
Acceleration Decoder D-AD-5N-30	15			optional

Available Lenses

Several lenses are available which are optimized for the Nova-Series. Choose the right optical system based on working distance, reflectivity of the surface to be measured or size of the focus point. The lenses are easily exchangeable due to a bayonet lock as on single-lens reflex cameras.

The table below provides an overview of the configuration options. We will also be happy to assist you in the selection of the best lens for your measuring task.

Short-Range Interchangeable lens

Working distance: 6 mm ... 5 m
Autofocus, remote focus, manual focus
Focus spot size (typ.): 25 µm at 6 mm

Mid-Range Interchangeable lens

Working distance: 125 mm ... 10 m
Autofocus, remote focus, manual focus
Focus spot size (typ.): 43 µm at 125 mm

Long-Range Interchangeable lens

Working distance: 450 mm ... 100 m
Autofocus, remote focus, manual focus
Focus spot size (typ.): 67 µm at 450 mm

Super-Long-Range Interchangeable lens

Working distance: 2300 mm ... 200 m
Autofocus, remote focus, manual focus
Focus spot size (typ.): 245 µm at 2300 mm

Extra-Long-Range Interchangeable lens

Working distance: 2490 mm ... 300 m
Autofocus, remote focus, manual focus
Focus spot size (typ.): 170 µm at 2490 mm

Device Datasheet & Information about Laser Vibrometry

Accessories

Single Point Vibrometer Transport Case

Stable and waterproof Peli case for safe keeping and transport of vibrometer.

External dimension (L x B x H): 61.9 x 49.2 x 22.3 cm

Transport Bag

Compact und light transport bag for the outdoors-measurements

Telescope

For measurements from a greater distance, a telescope makes it easier to find the measuring point. The telescope can be easily mounted on the gauge rail at the top of the vibrometer.