Author: EmtdAdmin

Today we have updated the latest version of MultiTool to 4.5.12.

This release brings new features to the acquisition system with an option to use automatic thresholds determined by the acquisition hardware. See the acquisition manual for more details.

A fix has been put in place for flight hardware from Rotadata.

Alarms have been added for laser temperatures.

The probe positioning algorithm has been refined to help determine the best positions in fewer passes of the calculation.

A fix has been put in place for a rare stack crash with bad data and no stack being displayed when the number of blades is very small.

Various bug fixes.

2nd March 2025

Today we have released version 4.5 of MultiTool.

This release brings new features to support the next version of the Acquisition hardware. We can now support Inductive probes as well as optical probes.The probe type is now selectable from the editor. The default probe type is optical.

The new acquisition hardware also has automatic threshold implemented in hardware. We have tried several conditioning schemes over the last few years and chosen this approach as the most reliable for the applications we have been involved in. The conditioning type can also be selected in the Editor on a per probe basis. The default is Manual.

We have made some changes to allow interoperation with some partner devices.

As this is a point release anyone with a V4 license can update to this version free of charge.

Download the software here.

Further bug fixes and enhancements.

Today we have released version 4 of MultiTool.

This release brings new features in the Acquisition for generating a Once Per Rev signal from the probe signals with both hardware and software solutions. We still recommend a physical OPR but these new features provide options where either fitting an OPR is not possible or the existing one has failed. We also have the ability to generate an OPR after the test from the recorded probe data. There is a YouTube video covering this functionality so please check it out. If you have an update subscription then download the software here.

We have added the ability to calculate the best axial position for the probes into the Editor. If you have a design sublicense for probe placement then this is included for free. The file format for the mode shape data is published in the Editor manual and a demo file is available in the downloads section.  There is a YouTube video covering this new functionality so please check it out.

Bug fixes and enhancements.

YouTube Channel Update

We have also released some tutorial videos onto our YouTube Channel. Due to the current situation we will not be travelling for training sessions so the aim is to cover the basic operation of the software, pointing out features and functionality that even existing users may have missed. Feel free to head over and take a look.

Update – The demo files used in the videos are available from the downloads section.

Be safe.

We are proud to announce that EMTD Ltd has been awarded a two year grant from the European Union to undertake a research activity.  This is under the Horizons 2020 Clean Sky programme.

EMTD Ltd are leading a project group which includes the following.

Manchester University’s School of Mechanical, Aerospace and Civil Engineering.

The Institute of Thermomechanics Academy of Sciences of the Czech Republic (IT ASCR)

A page has been set up and will be updated as work proceeds.

A new section has been created to host published papers and other contributions from EMTD Measurement. Please head over and check out the summary information available in the new section.

Alternatively use the main menu on the left and navigate to the individual papers under the ‘Published Papers’ heading.

If anything is of interest please feel free to get in touch
Contact Us

The Injector mode of MultiTool allows the user to adjust one or more blades in a dataset, either real or simulated. This can be done either by injecting a permanent DC shift to the blades position, injecting an impact condition or propagating a crack that moves the DC position of the blade with speed.

The user is also able to write their own crack growth algorithm as part of a Plug-In architecture. Please see the manual for more information.

Manual

Linear1 Plug in Source code

 

EMTD held its second BTT technology conference In Lingang China in July 2017, it was attended by many people from both Academia and Industry between Monday 24^th July – Wednesday 26^th July. The event began with a Keynote speech from Prof A.J. Wang of SJTU talking about the problems of reviewing vibration analysis data and the huge potential and opportunities for BTT methods. A number of future research topics were discussed along with new and novel applications.

 

 

 

 

 

 

The days also included small group tutorials where a wide variety of topics including EHM, probe technology and cost of ownership were discussed.

 

 

Feel free to contact us to find out more information or the date and content of our next training courses.

 

EMTD gave the Keynote speech, Rotor Blade Measurement Technology, at the Aeronautical and Automotive Research Conference 2017. – Loughborough University.

This is a conference for postgraduates, staff and guests from Industry and Academia in the Aeronautical and Automotive Engineering.

This event aims to bring together the Department’s research groups through a series of presentations and posters.

 

Contact EMTD or the University of Loughborough for more information.

At the School of Mechanical Engineering, Shanghai Jiao Tong University, Chengwei Fan is providing technical assistance for EMTD BTT systems. He is currently researching new analysis methods which we hope to incorporate in future systems.