LMS Test.Lab Rev 8 delivers increased productivity and breakthrough capabilities
Designed to power testing productivity, LMS Test.Lab continues to build on its proven track record to accelerate noise and vibration testing.
Extensive user benchmarks have reported 30 to 50 % time gains for common noise and vibration test scenarios. LMS Test.Lab delivers efficiency and flexibility in every single step of the testing process: faster test preparation, highly efficient data acquisition, flexible processing, powerful reporting and transparent data sharing.
Rev 8 of LMS Test.Lab includes over 400 enhancements and new features. In addition, LMS Test.Lab extends its Structures product line with a new MIMO Stepped Sine solution and expands its reach in Acoustics with a new Sound Intensity application and an innovative High Density Acoustic Camera.
The integration with the new LMS SCADAS Mobile VC8 and VB8 modules and the support of master/slave configurations further strengthens its capabilities for in-field or in-vehicle testing.
LMS Test.Lab Rev 8 at a glance:
LMS SCADAS Mobile support
Voltage, ICP and bridge in a single LMS SCADAS Mobile VB8 module
The strain gage conditioning capability of the VB8 module supports multiple bridge configurations (full, quarter, half, rotated half), with internal completion resistors and supply and input range voltages both up to 10V. Symmetrical sense lines guarantee optimal measurement accuracy. Shunt calibration is supported for all configurations, with 4 software selectable values of the embedded shunt resistors. Next to standard differential or single ended voltage sources and ICP/TEDS transducers, the LMS SCADAS Mobile VB8 module also supports capacitive, piezoresistive and MEMS based DC accelerometers for very low frequency vibration measurements.
LMS SCADAS Mobile VC8 combines voltage, ICP and charge
The LMS SCADAS Mobile VC8 module offers the possibility to connect both conventional piezoelectric sensors, such as force transducers or accelerometers, and standard voltage or ICP/TEDS sensors (type of sensor is selectable per channel). The exceptional dynamic performance of the VC8 charge amplifier guarantees that even the smallest vibration levels are captured accurately, providing maximum confidence in the measurement results. The VC8 is fitted with industry standard 10-32 Microdot connectors.
200+ Channels in a single mobile system
LMS Test.Lab Rev 8 enables testing teams to deploy the LMS SCADAS Mobile SCM05 system in a master slave configuration. This allows the extension of the compact 40-channel LMS SCADAS Mobile SCM05 with multiple SCADAS Mobile SCM05 systems or with dedicated 48-channel SCM06S slave systems. The frames are securely attached to each other by flipping the upper frame supports open to become practical connecting screws. The result is a powerful, rugged and portable high-channel data acquisition system that can be easily deployed for in-field or in-vehicle measurements. Since the release of LMS Test.Lab Rev 8 , multiple 200+ channel systems based on the LMS SCADAS Mobile systems have been successfully deployed. Several deployment for test-track in-vehicle data acquisition cover online measurements of CANbus data in parallel with measurement of noise and vibration signals.
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New MIMO Stepped Sine overcomes limitations of random excitation
Today’s vehicle or aircraft designs extensively rely on damping materials to reduce overall noise and vibration levels. This makes it ever more challenging to measure vibro-acoustic frequency response functions (FRF) for noise path contribution or experimental modal analysis.
The widely adopted (burst) random excitation techniques are often unable to excite the structure at sufficiently high levels, resulting in signal-to-noise ratio problems, long measurement times and noisy FRFs.
LMS Test.Lab Structures Rev 8 introduces a new MIMO (Multiple Input Multiple Output) Sine Testing acquisition workbook, featuring online amplitude and phase control on selected reference and/or response channels. This workbook uses the stepped sine excitation technique to measure high quality FRFs, which allow to concentrate the excitation energy at a single frequency and excite the structure at much higher energy levels. Currently available stepped sine testing solutions are rather slow and not practically usable. The MIMO Sine Testing capability in LMS Test.Lab Rev 8 overcomes this typical limitation, and combines the advantage of the high excitation levels and the resulting high quality FRF data with drastically reduced measurement times. The new LMS Test.Lab Stepped Sine workbook has been extensively tested in different testing assignments, including Ground Vibration Testing of a full aircraft, and several full-vehicle 4-poster test rigs for vibration and acoustic comfort.
New visualization and interpretation tools for faster diagnosis
Shorter testing cycles and the increasing product complexity make it ever more critical to quickly gain an in-depth understanding of a product’s dynamic behavior. Testing teams are under increasing pressure to efficiently visualize and interpret measured vibrations and noise patterns on a geometric model of the test item. To address this challenge, LMS Test.lab offers a seamless integration of Time Animation, Operational Deflection Shapes, Modal Analysis and Operational Modal Analysis worksheets. This integration enables an immediate and on-the-spot interpretation of vibration and noise patterns. This unique capability is further enhanced in LMS Test.Lab Rev 8. Users can now incorporate pictures of the test object in the geometry and animated deformation displays. Through the use of scalable transparency, this feature strongly facilities the engineering interpretation of noise radiating areas when combined with a colormap presentation of surface vibrations or acoustic intensity levels.
LMS Test.Lab Rev 8 offers further enhancements in the geometry and animation displays, which now include pattern animation in dB for any kind of animation type and an independent overlay arrowhead animation. These extensions are beneficial for the acoustician who can now look at intensity in either arrow annotation or color map with a picture of the structure in the background. Rev 8 also adds new capabilities to the LMS PolyMAX estimator to automatically identify modeshapes with unmatched speed and accuracy. Test.Lab offers new tools to easily analyze the correlation between identified mode shapes using a 3D MAC display. These tools complement the existing tabular MAC representation and the automatic joint animation of paired modes.
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New Sound Intensity solutions
The new LMS Test.Lab Sound Intensity solution supports an easy definition and calibration of one or more intensity probes. It allows users to measure the pressure residual intensity index of the probe and to perform an online calculation of the residual intensity as a quality indicator of the measurement. In addition to the sound intensity and sound pressure levels, LMS Test.Lab also measures the reactive sound intensity, particle velocity and residual intensity. This combined measurement capability eliminates the need for multiple measurements and guarantees higher quality and consistency of the test data.
To facilitate the measurement by a single operator, LMS Test.Lab Sound Intensity offers measurement control strategies such as an automatic point increment and restart function and an automatic measurement accept function. LMS Test.Lab also supports a USB-based remote control unit, which offers the test operator the full flexibility to operate the test remotely from his PC. The Sound Intensity analysis capability in LMS Test.Lab has been enhanced with the extensions of 3D animated geometry features, such as cursor driven RMS calculations and a display of intensity patterns for 1/nth octaves.
Accurate sound source localization
To efficiently eliminate acoustic hotspots, sound engineers continuously look for new approaches to localize the source of a specific noise problem.
LMS Test.Lab Rev 8 extends the use of Acoustic Focalization, a brand new acoustic source localization method that outperforms the commonly used far-field beam forming technique in terms of spatial resolution and bandwidth. The newly introduced High Definition Acoustic Camera in LMS Test.Lab combines the beamforming and focalization methods to localize the sound sources on a structure more accurate then ever before.
From a first measurement taken in the far-field, the HD Acoustic Camera creates an overview image of all sources from 400 Hz to 8 kHz, superposed on a picture of the structure. The resulting spatial resolution relates to the distance between the array and the source. To refine the source separation in specific areas of interest, which may vary depending on frequency, a second measurement in the near-field is taken by simply moving the antenna closer to the structure, typically to a distance below 30 cm. The LMS Test.Lab HD Acoustic Camera focalization analysis then localizes the source with a spatial resolution corresponding to 0.44 times the wavelength of the frequency of interest. The sound fields can be visualized through animation as a function of time and/or frequency. The new LMS Test.Lab Rev 8 HD Acoustic Camera solution includes an appropriate antenna with microphones, built-in camera and distance detection devices.
Designed to power testing productivity, LMS Test.Lab continues to build on its proven track record to accelerate noise and vibration testing. Extensive user benchmarks have reported 30 to 50 % time gains for common noise and vibration test scenarios. LMS Test.Lab delivers efficiency and flexibility in every single step of the testing process: faster test preparation, highly efficient data acquisition, flexible processing, powerful reporting and transparent data sharing.
Rev 8 of LMS Test.Lab includes over 400 enhancements and new features. In addition, LMS Test.Lab extends its Structures product line with a new MIMO Stepped Sine solution and expands its reach in Acoustics with a new Sound Intensity application and an innovative High Density Acoustic Camera. The integration with the new LMS SCADAS Mobile VC8 and VB8 modules and the support of master/slave configurations further strengthens its capabilities for in-field or in-vehicle testing.
LMS Test.Lab Rev 8 at a glance:
LMS SCADAS Mobile support
- Integrated support of the LMS SCADAS Mobile VB8 and VC8 modules
- Integrated support of the LMS SCADAS Mobile in master slave Ò adding up to 200+ channels for mobile testing
LMS Test.Lab Structures
- New MIMO Stepped Sine solution, combining the advantage of high excitation levels with drastically reduced measurement times
- Pink Noise Random excitation, guaranteeing constant energy per octave band
- Enhancements in the geometry and animation displays
- New tools to easily analyze the correlation between identified mode shapes using a 3D MAC display
LMS Test.Lab Acoustics
- New Sound Intensity solution supports an easy definition and calibration of one or more intensity probes
- Integration of a High Definition Acoustic Camera solution, incorporating beamforming and focalization methods to accurately localize the sound sources on a structure
- Support of the F76A standard for pass-by noise testing on motorcycles
LMS Test.Lab Rotating Machinery
- Support of true real-time-octaves measurements in parallel with fixed sampling narrowband measurements, while writing raw time data histories to TDF-files on the hard disc
- Extended options for definition of RPM annotation during fast run-ups
- Very flexible use of existing channel definitions from other projects, sections or templates during test setup preparation
LMS Test.Lab Vibration Control
- A user defined limit for the maximum start-up voltage in Sine Control and Tracked Sine Dwell excitation modes further increases test item security
LMS Test.Lab Processing
- To further automate the advanced analysis of time series, the Time Signal Calculator executes formulae on a range of traces with the same or even multiple sample rates across different acquisition runs
- A new X-axis option allows to display absolute time data values along the X axis of processed data according to the time value in which they were measured
- Additional interactive and cursor driven processing capabilities are introduced to support on the spot and highly interactive processing operations such as order & frequency cuts from any kind of 2D and 2.5D displays
LMS Test.Lab Desktop
- Enhanced Active Pictures capabilities with the new cursor legend, featuring embedded RMS, min, max, mean and range calculations and a crisp presentation on double cursors
- A user defined Extended Project and Extended Section Info worksheet, allowing editing of user defined attributes through an html-template
- Support of waterfall data in genuine ASAM-ODS and ATF(X) data formats
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LMS Test.Lab Rev 8 leverages extended signal conditioning and channel count for LMS SCADAS Mobile
LMS Test.Lab Rev 8 leverages extended signal conditioning and channel count for LMS SCADAS Mobile
With the introduction of Rev 8, the LMS Test.Lab data acquisition workbooks fully support the newly introduced LMS SCADAS Mobile VC8 charge-voltage-ICP and VB8 bridge-voltage-ICP modules. LMS Test.Lab allows users to interactively define and calibrate charge transducers and strain gages. In addition, the software has been fully optimized to take maximum advantage of the data acquisition speed, the flexibility and accuracy of the VB8 and VC8 modules. The new modules combine dedicated measurement functionalities in a single 8 channel input module, offering the unique capabilities to combine ICP, Charge, Voltage and Bridge in a single compact data acquisition unit.
Voltage, ICP and bridge in a single LMS SCADAS Mobile VB8 module
The strain gage conditioning capability of the VB8 module supports multiple bridge configurations (full, quarter, half, rotated half), with internal completion resistors and supply and input range voltages both up to 10V. Symmetrical sense lines guarantee optimal measurement accuracy. Shunt calibration is supported for all configurations, with 4 software selectable values of the embedded shunt resistors. Next to standard differential or single ended voltage sources and ICP/TEDS transducers, the LMS SCADAS Mobile VB8 module also supports capacitive, piezoresistive and MEMS based DC accelerometers for very low frequency vibration measurements.
LMS SCADAS Mobile VC8 combines voltage, ICP and charge
The LMS SCADAS Mobile VC8 module offers the possibility to connect both conventional piezoelectric sensors, such as force transducers or accelerometers, and standard voltage or ICP/TEDS sensors (type of sensor is selectable per channel). The exceptional dynamic performance of the VC8 charge amplifier guarantees that even the smallest vibration levels are captured accurately, providing maximum confidence in the measurement results. The VC8 is fitted with industry standard 10-32 Microdot connectors.
200+ Channels in a single mobile system
LMS Test.Lab Rev 8 enables testing teams to deploy the LMS SCADAS Mobile SCM05 system in a master slave configuration. This allows the extension of the compact 40-channel LMS SCADAS Mobile SCM05 with multiple SCADAS Mobile SCM05 systems or with dedicated 48-channel SCM06S slave systems. The frames are securely attached to each other by flipping the upper frame supports open to become practical connecting screws. The result is a powerful, rugged and portable high-channel data acquisition system that can be easily deployed for in-field or in-vehicle measurements. Since the release of LMS Test.Lab Rev 8 , multiple 200+ channel systems based on the LMS SCADAS Mobile systems have been successfully deployed. Several deployment for test-track in-vehicle data acquisition cover online measurements of CANbus data in parallel with measurement of noise and vibration signals.
__________________________________________________________________________________________
LMS Test.Lab Structures Rev 8 delivers shorter testing cycles and faster problem solving
New MIMO Stepped Sine overcomes limitations of random excitation
Today’s vehicle or aircraft designs extensively rely on damping materials to reduce overall noise and vibration levels. This makes it ever more challenging to measure vibro-acoustic frequency response functions (FRF) for noise path contribution or experimental modal analysis. The widely adopted (burst) random excitation techniques are often unable to excite the structure at sufficiently high levels, resulting in signal-to-noise ratio problems, long measurement times and noisy FRFs.
LMS Test.Lab Structures Rev 8 introduces a new MIMO (Multiple Input Multiple Output) Sine Testing acquisition workbook, featuring online amplitude and phase control on selected reference and/or response channels. This workbook uses the stepped sine excitation technique to measure high quality FRFs, which allow to concentrate the excitation energy at a single frequency and excite the structure at much higher energy levels. Currently available stepped sine testing solutions are rather slow and not practically usable. The MIMO Sine Testing capability in LMS Test.Lab Rev 8 overcomes this typical limitation, and combines the advantage of the high excitation levels and the resulting high quality FRF data with drastically reduced measurement times. The new LMS Test.Lab Stepped Sine workbook has been extensively tested in different testing assignments, including Ground Vibration Testing of a full aircraft, and several full-vehicle 4-poster test rigs for vibration and acoustic comfort.
New visualization and interpretation tools for faster diagnosis
Shorter testing cycles and the increasing product complexity make it ever more critical to quickly gain an in-depth understanding of a product’s dynamic behavior. Testing teams are under increasing pressure to efficiently visualize and interpret measured vibrations and noise patterns on a geometric model of the test item. To address this challenge, LMS Test.lab offers a seamless integration of Time Animation, Operational Deflection Shapes, Modal Analysis and Operational Modal Analysis worksheets. This integration enables an immediate and on-the-spot interpretation of vibration and noise patterns. This unique capability is further enhanced in LMS Test.Lab Rev 8. Users can now incorporate pictures of the test object in the geometry and animated deformation displays. Through the use of scalable transparency, this feature strongly facilities the engineering interpretation of noise radiating areas when combined with a colormap presentation of surface vibrations or acoustic intensity levels.
LMS Test.Lab Rev 8 offers further enhancements in the geometry and animation displays, which now include pattern animation in dB for any kind of animation type and an independent overlay arrowhead animation. These extensions are beneficial for the acoustician who can now look at intensity in either arrow annotation or color map with a picture of the structure in the background. Rev 8 also adds new capabilities to the LMS PolyMAX estimator to automatically identify modeshapes with unmatched speed and accuracy. Test.Lab offers new tools to easily analyze the correlation between identified mode shapes using a 3D MAC display. These tools complement the existing tabular MAC representation and the automatic joint animation of paired modes.
__________________________________________________________________________________________
Efficiently eliminating acoustic hotspots with LMS Test.Lab Acoustics Rev 8
New Sound Intensity solutions
The new LMS Test.Lab Sound Intensity solution supports an easy definition and calibration of one or more intensity probes. It allows users to measure the pressure residual intensity index of the probe and to perform an online calculation of the residual intensity as a quality indicator of the measurement. In addition to the sound intensity and sound pressure levels, LMS Test.Lab also measures the reactive sound intensity, particle velocity and residual intensity. This combined measurement capability eliminates the need for multiple measurements and guarantees higher quality and consistency of the test data. To facilitate the measurement by a single operator, LMS Test.Lab Sound Intensity offers measurement control strategies such as an automatic point increment and restart function and an automatic measurement accept function. LMS Test.Lab also supports a USB-based remote control unit, which offers the test operator the full flexibility to operate the test remotely from his PC. The Sound Intensity analysis capability in LMS Test.Lab has been enhanced with the extensions of 3D animated geometry features, such as cursor driven RMS calculations and a display of intensity patterns for 1/nth octaves.
Accurate sound source localization
To efficiently eliminate acoustic hotspots, sound engineers continuously look for new approaches to localize the source of a specific noise problem. LMS Test.Lab Rev 8 extends the use of Acoustic Focalization, a brand new acoustic source localization method that outperforms the commonly used far-field beam forming technique in terms of spatial resolution and bandwidth. The newly introduced High Definition Acoustic Camera in LMS Test.Lab combines the beamforming and focalization methods to localize the sound sources on a structure more accurate then ever before.
From a first measurement taken in the far-field, the HD Acoustic Camera creates an overview image of all sources from 400 Hz to 8 kHz, superposed on a picture of the structure. The resulting spatial resolution relates to the distance between the array and the source. To refine the source separation in specific areas of interest, which may vary depending on frequency, a second measurement in the near-field is taken by simply moving the antenna closer to the structure, typically to a distance below 30 cm. The LMS Test.Lab HD Acoustic Camera focalization analysis then localizes the source with a spatial resolution corresponding to 0.44 times the wavelength of the frequency of interest. The sound fields can be visualized through animation as a function of time and/or frequency. The new LMS Test.Lab Rev 8 HD Acoustic Camera solution includes an appropriate antenna with microphones, built-in camera and distance detection devices.
