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LMS Sound & Vibration Testing Solutions
LMS Test.Lab Structures – Options
LMS SCADAS III Hardware
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1QDAC - 4 channel
Digital-to-analogue
Source Signal Output
Module
PQFA - 4 channel
Floating/V/ICP1/TEDS
Signal Conditioner
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LMS Test.Lab Software |
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Run Data
Averaging &
Comparison Organizer The worksheet provides a comprehensive view on all available 2D data (order sections, frequency sections, octave spectra or octave sections, ...) and is designed to compare and average results from various tests very quickly, for validation and/or processing. Selected data are immediately displayed via powerful display filling modes in user defined screen layouts. Embedded navigation supports fast scrolling across functions or measurement points. Individual measurements are included or excluded from automatic average and envelope calculations by tick-box selection. Averages and envelopes can be stored in a project database. Batch Reporting –
Organizer |
Multi-run Modal
Analysis
This add-on to the
LMS Test.Lab Modal
analysis workbook
provides dedicated
processing of modal
test data that were
obtained through
different sets of
measurements. This
acquisition
technique is widely
used when a limited
set of
accelerometers is
used, that needs to
be relocated to
measure all response
point of the
structure. In such
case, FRF
inconsistencies
(e.g. frequency
shifts because of
mass-loading) could
affect the quality
of the modal
parameter
estimation.
Multi-run Modal
Analysis
automatically
accounts for
potential data
inconsistency
between runs when
extracting modal
frequencies and
damping, and during
the subsequent mode
shape calculation.
Operational
Deflection Shapes &
Time Animation
Workbook
Deflection shapes of
structures in
operational
conditions can be
analysed starting
from either time or
frequency domain.
Deformation patterns
extracted from order
and frequency
sections, FRF or
Cross-Power
measurements in
stationary operating
conditions,
highlight behaviour
at specific
frequencies just
like a stroboscope.
Additionally, the
user can investigate
deformation shapes
starting from time
recordings and
animate the
structural
deformation
scrolling through
the time axis like a
slow motion camera.
Depending on the
selected analysis
function, a
comprehensive view
is given on all
available data. The
user can select a
range wherein the
animation will
automatically
scroll, with the
possibility to pause
and restart the
animation at all
times. The workbook
also includes
features to
selectively animate
at peaks of the
function, looks for
maxima between 2
cursors, etc. Any
analysed vibration
pattern can be
stored for future
detail analysis or
reporting purposes.
LMS SCADAS III
Smart Transducer
TEDS support
A smart transducer
is a sensor with
programmable
read/write memory
called TEDS
(Transducer
Electronic Data
Sheet). Part of the
TEDS memory is user
definable and
contains relevant
transducer and
measurement point
characteristics such
as point ID,
calibration value,
position coordinates
and Euler angles.
These
characteristics are
retrieved from the
transducer through
the LMS SCADAS III
PQFA modules. The
retrieved
information is
easily inserted in
the channel list of
all LMS Test.Lab
acquisition
applications. This
automatic matching
of transducers and
input channels
significantly
reduces setup time
and highly reduces
the risk of wiring
problems when a high
number of sensors
are used.
Additionally, the
geometric
information can be
read in the LMS
Test.Lab Geometry
workbook.
Throughput
Validation &
Processing Host
This worksheet
offers a convenient
Strip Chart Display
overview of time
histories, including
zoom-in, immediately
after completing a
measurement using
the parallel
throughput
functionality,
without leaving the
data acquisition
workbook. It also
provides “Processing
Data Set” definition
functionality,
organizing and
combining recordings
from different
measurements for
batch processing. A
“Quick Spectral Map”
provides insight in
spectral contents of
the displayed time
histories to guide
the selection of
appropriate
processing
parameters.
Signature
Throughput
Processing
Signature Throughput
Processing offers
efficient processing
of multiple
throughput files
with a common set of
processing
parameters. Tracking
channels (e.g.
tacho) can be used
to control the
selection of
segments of time
data to be
processed. It
supports trial
processing on a
limited number of
channels and
includes batch
processing with
auto-saving of
results, which can
be interrupted at
any time. The module
also offers
convenient pre-view
of processing
results with auto
switching of the
display depending on
the type of results.
External File
Access
This option extends
the browse, search,
sort and access
functionality of the
LMS Test.Lab Desktop
to genuine SDF, UFF
and Matlab file
formats, making data
from external
applications
accessible for use
in LMS Test.Lab
without the need for
file conversion.
