digital scanning laser vibrometer · face of nearly any object. scanning laser vibrometer can...
TRANSCRIPT
Digital Scanning Laser Vibrometer Scan-Series
IMAGING VIBRATION MEASUREMENT
Scanning Laser Doppler Vibrometry is an advanced measurement technique for the visualization of vibrations on the sur-face of nearly any object. Scanning Laser Vibrometer can measure and visualize vibration shapes and eigenmodes, capt-ure the propagation of surface waves, validate FEM models, characterize vibration processes, and determine modal para-meters.
HIGHLIGHTSi
SWIR Scanning Laser Vibrometer
The Scan-Series combine the superior signal quality of SWIR laser vibrom-etry with the informative value of imaging methods by scanning the object under test on a flexibly definable point grid. Different measurement surfa-ces, wider coverage, and measuring ranges are the key to new fields of application.
Scanning vibrometry makes it possible to test entire workpieces automati-cally in one measurement process without contact or any influence on the object. Thus, scanning vibrometry enables the capture of local resonances and global vibration modes with the lowest effort.
• Excellent signal level
• Very compact
• Easy to operate• Highest accuracy and resolution
• High-speed vibrationsup to 24.5 m/s
• Long-distance measurements
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Acoustics
Automotive industry: Optimization of car door, automotive transmission, brakes, motor, NVH testing...
Consumer market: Development of household appliance, electronic toothbrush, washing machine... Optimization of deflection shapes in loudspeaker, musical instruments...
Structrual Dynamics
Material Research: non-destructive evaluation ofmaterial properties, material defect analysis...
Automotive industry: Modal analysis, FE-model validation...
Aviation and Aerospace industry: Airplane components, turbines...
Example applications:
Applications
Electronics
Civil Engineering
Aerospace industryAutomotive industry
Material research & testing Toolmaking and Mechanical Engineering
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Making Measurements
Start scanning Results / 3D AnimationGeometry Definition Mesh Generate / Import
Data ExportFEM model validation
AnalyzeSet up
- Geometry definition- Mesh generation / import - Setup of the data acquisition / generator system
Automatic Scan
- The whole grid is automatically scanned by the laser beam.- making measurements at each grid point- Time response and frequency response of each point and reference signals are displayed in real time during the scan.
Visualization / Analysis
- 3D Animation to display your ODS (Operation deflection shape)- Modal analysis- Data export- FEM model validation
Technical Data
Measured Quantities – Performance Parameters
Max.Frequency
Max.2Velocity
Best Vel.1Resolution
Max.2,3,4Displacement
Best Disp.1Resolution
Max.2,3,4Acceleration
Best Accel.1Resolution
5 (24)4MHz 25m/s 1.7 nm s−1/√Hz ± 122.5m 0.05 pm /
√Hz 78.4Mg 1.8µg /
√Hz
General Measurement Specifications
Measured quantities Velocity, displacement, acceleration
Frequency bandwidth2 0Hz - 5MHz (24MHz4 )
Max. velocity2 25m/s
Velocity measurement ranges2 14
Signal processing Digital (FPGA based)
Source impedance 50Ohm
Analog signal output 5×BNC, ± 2 V (or ± 10 V on request):- Velocity, displacement3, acceleration3, AUX2, signal generator
- Data rate: 160 MSamples/s @ 16-bit
External Trigger Digital external trigger in/out via SMB
Filter High-pass filter: off / 25Hz / 20 kHz
Low-pass filter: off / 2.5 / 5 / 10 / 20 / 50 / 100 / 200 kHz
Tracking filter: off / slow / fast
Integrated signal generator - Produce various preset functions (sin, chirp, gaussian, ...)
- Import of arbitrary functions and audio wave-files
Measurement Specifications – Scanning Operation Mode
Scan angle 50°×40°Scanning: Angular stability < 0.001°/ h
Scan point density Up to 512×512 scan pointsCamera & Camera PC-Interface CCD-Picture capture & live display: Full HD 1080p, 30x optical zoom, hori-
zontal viewing angle: 63.7°(wide end) to 2.3°(tele end), USB 3.0
Digital Signal Output & 1Gbit RJ45 Ethernet:
PC-Interface - Digital data acquisition- and analysis software OptoSCAN5
- Digital remote control of device settings
BNC analog inputs Measurement input, 2 x reference input,
24-bit A/D converter per channel
support for IEPE (Integrated Electronic Piezoelectric) inputs
Geometry unit Measure distances to Objects and their geometry
1 Signal amplitude (rms) producing 0 dB signal/noise ratio with 1Hz spectral resolution at 50% fmax2 Actual specifications depend on the configured decoder.3 Optional available4 Available in single-point operation mode. 0–10MHz: vmax = 25m/s; 10–24MHz: vmax = 1m/s.5 Standard included: Detailed program features listed further below.
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Measurement Specifications – Single-Point Operation Mode
Measuring ranges2 14 (velocity), 19 (displacement), 14 (acceleration)
Digital Signal Output & 1Gbit RJ45 Ethernet:
PC-Interface - Data rate: 1 GBit (53.3 MSamples/s @ 16-bit)
- Digital data acquisition- and analysis software OptoGUI5
- Digital remote control of device settings
Optical Specifications
Working distances Variable working distance from 0mm to 100m
Laser wavelength Measurement laser: 1550 nm, Target laser: green (510-530 nm) or red (610-650 nm) on request
Laser safety class Measurement laser: output power: <10 mW, class 1
Target laser: output power: <1 mW, class 2
Optics Auto-, remote-, and manual focusing
General Device Specifications
User interface output Color screen 3.5" + 20 segment LED bargraph
User interface input Touch screen, knobs with push-button, key switch (power)
Operating temperature 0 to 40°C
Dimensions Length×width×height (excluding handle): 450×224×180 mmWeight 12 kg
Power supply 110 -240 V AC (50-60Hz) or 12 V DC
Portable Operation Possible
Portable power supply 12 V DC portable charger3
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Model Options - Decoders6,76For details see decoder data-sheets. 7 Variations from displayed models available on request.
Overview Model Options and Characteristics of the standard included Scanning Decoder6,7
Model(Decoder)6,7
Description MeasuringRanges6
Max.Velocity
FrequencyBandwidth -Scan
Basis(D-VD-1S)
Versatile model with high resolution9. 8 5m/s 0Hz – 80 kHz
Sense(D-VD-2S)
Smallest measurement range ±2.45mm/s(±1mm/s o.r.14 ) and highest resolution10.
12 12m/s 0Hz – 80 kHz / 1MHz3
High Speed(D-VD-3S)
Supports measurements up to highest ve-locities.
11 25m/s 0Hz – 80 kHz / 1MHz3
HF(D-VD-4S)
Supports measurements up to highest fre-quencies.
9 12m/s 0Hz – 80 kHz / 5MHz3
Master(D-VD-5S)
The all-rounder: Includes all Sense, HighSpeed, and High Frequency features.
14 25m/s 0Hz – 80 kHz / 5MHz3
8 Exact measuring ranges listed in the identical named single-point velocity decoder data-sheets (D-VD-1N, ...-2N,...-3N, ...-4N, ...-5N,). Scan-Sense decoder supplemented by one additional range at 12m/s.
9 Best velocity res.: 12 nm s−1/√Hz.
10 Best velocity res.: 1.7 nm s−1/√Hz.
Characteristics of the Decoders for Single-Point Operation Mode6,7
Decoder6,7 RequiredScan-Decoder
MeasuringRanges6
SmallestRange11,12,13
LargestRange
FrequencyBandwidth
D-VD-1ND-DD-1ND-AD-1N
SSO
D-VD-1S 8198
±2.45 cm/s±122.5 nm±392 g
±5m/s±122.5mm±1.6Mg
0Hz – 500 kHz
D-VD-2N-12D-DD-2N-12D-AD-2N-12
SSO
D-VD-2S 121912
±2.45mm/s14±122.5 nm±3.9 g
±12m/s±122.5mm±7.6Mg
0Hz – 1MHz
D-VD-3ND-DD-3ND-AD-3N
SSO
D-VD-3S 111911
±2.45 cm/s±122.5 nm±392 g
±25m/s±122.5mm±39.2Mg
0Hz – 2.5MHz
D-VD-4ND-DD-4ND-AD-4N
SSO
D-VD-4S 9199
±2.45 cm/s±122.5 nm±±392 g
±12m/s±122.5mm±76.8Mg
0Hz – 10MHz0Hz – 24MHz3
D-VD-5ND-DD-5ND-AD-5N
SSO
D-VD-5S 141914
±2.45mm/s±122.5 nm±3.9 g
±25m/s±122.5mm±78.4Mg
0Hz – 10MHz0Hz – 24MHz3
S: Standard included.O: Optional included.
11 Best velocity resolution: 1.7 nm s−1/√Hz.
12 Best displacement res.: 0.05 pm.13 Best acceleration res.: 1.8µg /
√Hz.
14 ±1mm/s on request
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AccessoriesS Standard included, O Optional available
Transport Case for Scanning VibrometerStable and waterproof Peli case for safe keeping andtransport of vibrometer.External dimension (L x B x H): 61.9 x 49.2 x 22.3 cm
S
Close-up UnitAllows measurements at very close distances of a fewmm and less. O
IR-Detector CardTransforming the not-visible infrared light into a spot ofvisible light. S
IR-CameraFor digital visualizing of the laser point. The cameracan be easily mounted on the gauge rail at the top ofthe vibrometer.
O
Tripod with Fluid HeadPrecisely align your vibrometer with high quality tripodsby Manfrotto. O
Mobile BatteryPortable battery charger, external battery power bank.For powering the vibrometer when performing outdoormeasurements.
O
Software
OptoGUI – Measurement & AnalysisSoftware for data acquisition, analysis, and remote con-trol when using the single-point operation mode. Liveanimation of measured time and frequency data.
S
OptoSCAN – Measurement & AnalysisSoftware for data acquisition, analysis, and remote con-trol in scanning operationmode. Animation ofmeasuredtime data, various analysis functions, and the frequencyresponse function of the scanned surface.
S
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OptoGUI software includes
Remote control Remotely control all vibrometer settings via ethernet. S
Read-out Read out data via ethernet with up to 80MS/s S
Time data Live animation of measured vel./disp./accel. data S
Export data Export time data as .csv, .h5, or .mat files S
Fourier-Transformation -Perform the Fast-Fourier-Transformation of the data while measuring S
-Display the measured time data in the frequency-domain (spectrum)
-FFT can be calculated with up to 8 Mio. FFT lines
Peak identification Automatically identify signal peaks in the frequency spectrum S
Fourier boundaries Limit live FFT-calculation to certain time ranges of the time data S
Signal trigger Trigger your measurement with the vel., disp., or accel. signal S
External trigger Trigger your measurement with an external TTL signal (3.3 V) O
Multiple traces Record and recall multiple traces of the vel./disp./accel. time data S
Arbitrary signal generator Import file formats: .csv ASCII- or .wav audio files S
Pre-defined signals: sin, rectangle, chirp, random, ...
OptoSCAN software includes
Remote control Remotely control all vibrometer settings via ethernet S
Software architecture 64-bit, multithreaded, fast-responsive software architecture S
Offline analysis Analysis of data in offline post-processing S
Individual Scan Points Freely chose measurement geometry and individual point positions S
Geometry capture Measure the 3-dimensional geometry of your object and the absolutedistance to the vibrometer.
S
Arbitrary signal generator Import file formats: .csv ASCII- or .wav audio files S
Pre-defined signals: sin, rectangle, chirp, random, ...
Camera Live video stream to monitor the measurement progress S
Time domain animation Time data of vibration velocity at all points are measured relative toexcitation signal. Propagation of waves along the object’s surface is 3D-animated over time (e.g. for analysis of lamb-waves).
O
Frequency functions Calculation of FRF, FFT, Auto-Spectrum, Cross-Spectrum, Coherence S
ODS (operating deflectionshape)
3D-animation of mode shapes at selected frequencies S
Heatmap of Amplitude 2D-Heatmap of the velocity/displacement/acceleration o
Heatmap of coherence 2D-Heatmap of coherence of measured data S
Speckle-Tracking & point-wise autofocus
High-speed autofocus and configurable speckle-tracking S
Modal analysis Analyze dynamical properties of the scanned structure O
UFF-Interface Multithreaded export of ODS data, time data, geometry data, all fre-quency functions, and data of reference channels
S
Audio-file export Export of time data as .wav audio-files S
Video export Export animations of time data (wave-propagation) and selected mode-shapes as high resolution video file
S
Data processing digital filtering, signal averaging (including weighted average, peak av-erage, etc. not less than 3 items), real time integral, differential, FFTwindows (including rectangle, exponential, Hanning, etc.)
O
Export data as: .svd, .uff, .ASCII, and .wav files S
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Maintenance Specials
Warranty
Warranty 12 month warranty for all not self-inflicted defects S
Warranty extension Extension of standard warranty to 24 months O
Software Updates
Software maintenance Free software updates within warranty period S
Extended maintenance Additional extension of software updates by 12+ months O
Hardware Maintenance
Hardware Maintenance Free hardware maintenance within warranty period S
Extended maintenance Additional extension of hardware maintenance by 12+ months O
Recalibration & cleaning Cleaning & realignment of optical parts, check of laser output power,check integrity of fiber, redo factory calibration
O
Laser product label
DO NOT STARE INTO BEAM Class 2 Laser ProductLaser CLASS 1: invisible, λ=1550 nm, output power: <10 mWLaser CLASS 2: visible, green laser beam, λ=510-530 nm or redLaser CLASS 2: laser beam, λ=610-650 nm on requestLaser CLASS 2: output power: <1 mW (for red and green)
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DIGITAL LASER DOPPLER VIBROMETER
CONTACT US
Optomet GmbH | Pfungstaedter Strasse 92 64297 Darmstadt | Germany
Phone +49(0)6151-4920-884 | [email protected] www.optomet.com