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OMS Vibrometer

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OMS Vibrometer

 VibroMet 500V

 

The OMS Laser Vibrometer is an easy-to-use precision instrument for non-contact vibration measurement of any surface. The system can be instantly used by aiming the laser beam at a target at any distance up to five meters, without the need for any optical or mechanical adjustments. The system output is an analog voltage that is directly proportional to the target velocity, and can be easily viewed with an oscilloscope, spectrum analyzer, or data acquisition system.
Products
1. OMS LaserPoint LP01

The LaserPoint LP01 is an easy-to-use single point laser Doppler vibrometer (LDV) for measuring vibrations of nearly any object. It requires no beam focusing and generally does not require any treatment of the surface to be measured. The compact and portable LDV allows users to quickly obtain reliable and accurate results in a cost-effective package. 
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2. OMS Laser Scan LS01

The LaserScan LS01 is a compact yet powerful scanning laser Doppler vibrometer (SLDV). The LaserScan LS01 includes everything required for a complete full-field measurement - the laser vibrometer, scanning mirrors, camera, data acquisition unit, signal generator, laptop computer, and software. Within minutes, the LaserScan LS01 can automatically scan hundreds of points to generate a 3-D animation illustrating the vibration of a structure
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3. VibroLaser ScanSet

The ScanSet is a hardware and software module that converts any single point laser Doppler vibrometer into a complete scanning vibrometer. It includes a set of scanning mirrors, camera, and software for the user to precisely define the scan area. The ScanSet will then automatically acquire, process, and display the measured velocity data. A set of mounting adapters are available to attach the ScanSet to any single point laser vibrometer. 
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4. OMS Multi-Beam Vibrometer

OMS Corporation is the only company offering a multi-beam laser vibrometer solution. OMS can produce a custom multi-beam vibrometer with up to 31 beams that can make simultaneous vibration measurements of a target. The Multi-Beam Vibrometer is the only solution for transient or non-reproducible vibration events, and also can be significantly faster than a single beam scanning solution. Please contact OMS to discuss your Multi-Beam Vibrometer requirements.
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5. OMS Custom Vibrometers

OMS Corporation can design custom laser vibrometers to meet your measurement needs. Examples include specifying a particular laser wavelength, or a specific target distance or frequency range. OMS Corporation can also package multiple single point systems into a custom package. Please 
contact OMS to discuss your custom laser vibrometer requirements. 

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OMS LaserPoint LP01 Laser Vibrometer Features

The OMS LaserPoint LP01 Laser Vibrometer is an easy-to-use precision instrument for non-contact vibration measurement of any surface. The system can be instantly used by aiming the laser beam at a target at any distance up to five meters, without the need for any optical or mechanical adjustments. The system output is an analog voltage that is directly proportional to the target velocity, and can be easily viewed with an oscilloscope, spectrum analyzer, or data acquisition system. The LaserPoint Laser Vibrometer includes two velocity ranges and an array of low pass filter options to optimize the quality of the output signal.
The OMS LaserPoint LP01 Vibrometer is based on innovative laser diode technology that uses a self-mixing architecture with no external lenses and a minimal number of optical components. This results in an extremely robust and compact vibrometer that can function well in harsh environments.
- Compact, Robust, Field Tested Design
- Easy Point and Measure Operation
- No Beam Focusing or Surface Treatment Required
- Convenient Analog Voltage Output
- Mature and Proven Technology
Specifications
The OMS LaserPoint LP01 Vibrometer is based on a patented electro-optical configuration. The system consists of two components, an optical head and an electronic controller, which are connected by a cable.
The optical head contains a near-infrared laser diode with a built-in high speed photo-detector, an acousto-optic modulator, and a red laser diode to aid in aiming the beam. The controller contains a demodulator, a signal strength indicator, two selectable velocity ranges, and an array of low pass filter options.
Velocity Range
5 μm/s to 800 mm/s 1
Vibration Frequency Range
0.01 Hz to 20 kHz 2
Working Distance
1 cm to 5 m
Displacement Range
0.04 nm (at 20 kHz) to 120 mm (at 1 Hz)
Optics
Collimated (No Focusing Needed)
Surface Reflectivity
Realistic Surfaces
Signal Output
Analog Velocity and 10.7 MHz FM Outputs
Dimensions
Laser Head: 24 x 11.4 x 7.6 cm
Electronic Controller: 30 x 22 x 6 cm
Weight
Laser Head: 1.4 kg
Electronic Controller: 3.9 kg
Low Pass Filters
1,2,5,10,20 kHz
Output Voltage (max)
± 10 Volts
Laser
780 nm, <15mW, Class IIIb
650 nm, <1mW, Class II
Power Requirement
100 to 230 VAC at 50/60 Hz
Temperature Range
3 - 45°C
1 Higher velocities are available with the LaserPoint. Please contact us for more information.
2 Frequencies above 20 kHz can be measured with the LaserPoint. Please contact us for more information
Accessories

Heavy Duty Tripod – This black anodized aluminum tripod from Manfrotto is recommended for maximum stability and flexibility. This tripod allows rapid height adjustments, quick locking, and easy portability. The tripod head allows pan and tilt operation, and features a quick snap-in/release for the vibrometer.

Extended Cable – For those customers who require longer distances between the laser head and the control box, OMS offers extended cables with lengths up to 5 meters.

Data Acquisition Systems – OMS offers two data acquisition systems from National Instruments with the LaserPoint. The first is a portable 4-channel, 100 kS/sec system, and the second offers 8 channels and sampling rates up to 400 kS/sec. Both operate through a USB 2.0 port.

Software – OMS offers some basic software to acquire the vibrometer data, perform FFTs, and convert the received signals to units of velocity, acceleration, and displacement.
 
 
OMS LaserScan LS01 Scanning Vibrometer Features


The OMS LaserScan LS01 Scanning Laser Vibrometer is a compact, portable, competitively priced, and easy-to-use precision instrument for whole field non-destructive testing and non-contact vibration measurement of any surface. The LaserScan LS01 uses the patented LaserPoint engine together with computer controlled scanning mirrors and a comprehensive software package to quickly produce vibration maps of any surface. The system is optimized for measuring distances from about half a meter to five meters, so there is no need for adjustments, lens accessories, or object treatment, thus ensuring the highest level of measurement accuracy.
- Compact, Portable System
- Programmable Scan
- No Beam Focusing or Surface Treatment Required
- Heterodyne Detection for High Measurement Sensitivity
- Large Variety of Data Analysis and Filtering Options
- 3D Animation and Visualization of Results
- Easy-to-Use Point and Measure Operation
Specifications
The OMS LaserScan LS01 scanning vibrometer is based on a patented electro-optical configuration developed by MetroLaser. The system consists of a portable laser sensor head and electronic controller. The laser sensor head includes a laser, frequency modulator, photo-detector, color CCD camera, and two computer-controlled scanning mirrors. The electronic controller has both a demodulated velocity output and a 10.7 MHz frequency modulated signal output. The front of the controller has a signal strength indicator, two selectable velocity ranges and an array of low pass filter options. A comprehensive software package, including modal analysis, is available. The software registers the user-selected target, controls the mirrors, performs dithering if needed, collects and analyzes data, and displays 2D and 3D animations.
The OMS LaserScan LS01 scanning vibrometer is based on a patented electro-optical configuration developed by MetroLaser. The system consists of a portable laser sensor head and electronic controller. The laser sensor head includes a laser, frequency modulator, photo-detector, color CCD camera, and two computer-controlled scanning mirrors. The electronic controller has both a demodulated velocity output and a 10.7 MHz frequency modulated signal output. The front of the controller has a signal strength indicator, two selectable velocity ranges and an array of low pass filter options. A comprehensive software package, including modal analysis, is available. The software registers the user-selected target, controls the mirrors, performs dithering if needed, collects and analyzes data, and displays 2D and 3D animations.

Velocity Range
5 μm/s to 800 mm/s
Vibration Frequency Range
0.1 Hz to 20 kHz
Working Distance
.5 m to 5 m
Optics
Collimated (No Focusing Needed)
Surface Reflectivity Enhancement
Typically None Required
Signal Output
Analog Velocity and 10.7 MHz FM Outputs
Dimensions
Laser Head: 36 x 25 x 18 cm
Electronic Controller: 43 x 33 x 10 cm (standard 19-in rack)
Weight
Laser Head: 10 kg
Electronic Controller: 6.2 kg
Low Pass Filters
1,2,5,10,20 kHz
Output Voltage (max)
± 10 Volts
Laser
780 nm, <15mW, Class IIIb
650 nm, <1mW, Class II
Scan Range
± 20° each axis
Beam Size
1mm diameter
Power Requirement
110V/220V
Software

The OMS LaserScan software includes all of the modules required for a complete vibration measurement.
Video Camera and Frame Grabber
Measurement Point Generator and Editor
FFT Analyzer and Signal Generator
Laser Beam Control
Operation Deflection Shape Analysis
2-D and 3-D Animations
Optional Integrated Modal Analysis Package


The SLDV software works with standard desktops or laptops under Windows XP or Windows 7. An office version of the software is also provided for data analysis and presentations outside of the test environment.

 

 














 
ScanSet Features

The ScanSet is an innovative and cost-effective solution to convert any single point laser vibrometer into a complete scanning system.

The ScanSet package includes a mirror set, camera, data acquisition module, software, quick release clamps to attach several brands of laser vibrometers, and easy-to-use translation stages to accurately position the vibrometer in relation to the scanning mirrors. The user-friendly software acquires high-quality video from the camera, and allows the user to precisely specify the areas to be scanned. The data acquisition module includes four input channels as well as an output channel that can be used to drive an excitation signal.
The system then automatically acquires the velocity data from each measurement point, and provides many methods to visualize the results, including Operation Deflection Shapes, FFTs, Frequency Response Functions, and many more. The data can also be exported for analysis with other software programs, or linked with the integrated optional modal analysis package.
The system then automatically acquires the velocity data from each measurement point, and provides many methods to visualize the results, including Operation Deflection Shapes, FFTs, Frequency Response Functions, and many more. The data can also be exported for analysis with other software programs, or linked with the integrated optional modal analysis package.


Specifications
The ScanSet package consists of two modules to convert any single point laser vibrometer into a scanning vibrometer. One contains the high precision laser scanning mirrors and the CCD camera. To ensure that the laser beam hits the mirrors in the proper location, the ScanSet offers linear slides to adjust the module and a clamp to lock the best position. The ScanSet is ideally suited to work with the OMS LaserPoint, but it can also be used with vibrometers from many other manufacturers. Please contact OMS for more details about laser vibrometer compatibility.

The controller includes a four channel data acquisition module, a video frame grabber, and the drivers and power supplies for the system. The controller is connected to the ScanSet with a single cable. The controller also has a USB port to connect to a laptop or desktop computer, which is used to set up the acquisition and to view the results.

Software
The measurement and analysis software operates under Windows 7, and includes all of the modules required for a complete scanning system, including:
- CCD Image Capture and Live Display
- Geometry and Measurement Point Editor
- FFT Analyzer and Signal Generator
- Mirror Control and Steering
- Operation Deflection Shapes (ODS)
- 3-D Animations and AVI export
- Export of Raw Time Records, FFT spectra, Geometries, and More
- Free Additional Offline Version for Post-Processing and Analysis
- Optional Modal Analysis Package
 
 
 
OMS Multibeam Vibrometer
  
Optical Measurement Systems is the world’s only commercial provider of a multi-beam laser vibrometer (MB-LDV). The MB-LDV is the only instrument capable of making non-contact velocity measurements at several locations simultaneously.
                                                                  
Since all points are measured at the same time, transient events can be accurately measured. In addition, the relative phase between measurement locations can be used to generate modal vibration patterns in a single shot. This capability is superior to single beam scanning methods and necessary when measuring temporally non-stationary responses during interrogation. Another significant advantage, when compared to single beam scanning methods, is the faster inspection time of the multi-beam LDV system.
OMS can deliver multi-beam systems with a custom beam pattern to suit a customer’s requirements. In addition, the number of beams, the target distance, and the frequency range can be tailored to best fit the application. 
- Simultaneous Measurements at all Points
- Customizable Beam and Optics Configuration
- High Measurement Sensitivity
- Rugged Field Tested Design
- Single Shot Phase Measurement
- Optional Linear Scanner
 
 
 
OMS Custom Vibrometers
 
OMS can provide custom laser vibrometers to meet a customer’s specific requirements. Customization examples include the choice of laser wavelength and the maximum target distance. Please contact OMS to discuss your application in more detail.