Software for Operational Modal Analysis



Fall 2015 Campaigns on ARTeMIS Software


ARTeMIS Modal Campaign

From today we are running a campaign where you will get a 15% discount on any type of ARTeMIS Modal license ordered before December 31, 2015.


ARTeMIS Extractor Campaign

In addition, we are running an upgrade campaign for all our ARTeMIS Extractor customers. Until December 31, 2015 you can upgrade your ARTeMIS Extractor to ARTeMIS Modal for only 1,000 EUR!! As part of this deal, you will also get a one year maintenance service included starting from the date of ordering.


Please contact to get a quote on one of the above offers. Please ask for this special Fall 2015 Campaign discount.

Upcoming Feature - Modal Uncertainty Diagram

The upcoming release 4.1 will include a series of new features, and among these is a new Modal Uncertainty Diagram. This diagram presents the estimation results of the natural frequencies versus the damping ratios for a user selected list of modes.


The estimation results consist of the mean values of the estimates as well as the confidence bounds. In the figure below, the results of an Operational Modal Analysis of the Heritage Court Tower in Canada using the Unweighted Principal Components Stochastic Subspace Identification method are shown. Eight modes have been estimated and they are all presented in the diagram:




This diagram gives a quick graphical overview over the estimation accuracy of the individual modes of the analysis. The larger confidence bounds a modal parameter has for a certain significance level, the more uncertain the estimation of the "true modal parameter" is. The first five modes show a reasonable uncorrelated nature between the natural frequency and the damping ratio. This is indicated by the "standing" confidence bound ellipses. In the case of the last three modes, there is correlation between the estimates of the natural frequency and the damping ratios. This is indicated by the "tilting" confidence bounds ellipses. They are all tilting to the left which indicates that a higher frequency estimate at the same time most probable will result in a lower damping estimate.


The presented diagram fits the axes to the displayed modes, but this setting can be changed so that frequency axis is 0 to the Nyquist Frequency and damping is 0 to 100%.


The Modal Uncertainty Diagram is available for automatic estimated modes obtained with any of the Stochastic Subspace Identification methods available in ARTeMIS Modal Pro. It can be accessed both in the Estimation Task and the Validate task.



New Distributors in Italy and China

We are happy to introduce Spectra S.r.l. - our new distributor of ARTeMIS software in Northern Italy.  Spectra S.r.l. was founded in 1985 and is specialized in the acoustics and vibration fields. It delivers complete portable and laboratory systems to its customers located both in the industrial and environmental field.


Please visit for more information. 


It is also with pleasure we introduce our new distributor in China - Shanghai SWINS Engineering Technology Co., Ltd. (SWINS)


SWINS is a private company founded in January 2008 that has 15 engineers. Besides distributing ARTeMIS Modal, SWINS is also the sole reseller and the local technical supporter of nCode software made in HBM United Kingdom Ltd. and SoMat data acquisition system made in HBM Inc/USA for the Chinese market. The business focus is in durability engineering and vehicle calibration. SWINS’s customers cover automotive industry, off-road vehicle, construction machinery, agricultural machinery, railway, wind energy, and aerospace industries.


Please visit for more information. 


Structural Vibration Solutions A/S • Tel: +45 9635 4422 •

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