23 March 2011
Welcome to our latest Newsletter about the Vibration & Environmental test world in addition to the latest information from m+p international.
The m+p international Newsletter is circulated exclusively to test engineers and managers involved in vibration test, data acquisition and signal analysis and hopes to bring you some useful technical snippets gleaned from around the world and from around the test and measurement industry. We always look forward to your inputs, send us your views to firstname.lastname@example.org.
Our VibControl products for advanced vibration testing from 4 to hundreds of input channels are used by many of the leading environmental test laboratories throughout the world.
Our latest VibControl Rev. 2.11 introduces a lot of new useful capabilities and enhancements to our software, a few of them are:
This software update is of course free to all our VibControl customers with current maintenance contracts.
2. Mobile 96-Channel Data Acquisition System for Turbomachinery Testing
Siemens AG is a global powerhouse in electronics and electrical engineering, operating in the industry, energy and healthcare sectors. At its location in Duisburg/Germany, Siemens uses m+p international’s mobile Coda data acquisition system for in-house or on-site turbomachinery testing.
The mobile Coda system supports 96 channels to measure temperatures, pressures, flows and strains. It consists of a 19” rackmount case, a VXIbus mainframe and the signal conditioning units. Operation is done via an external laptop which will be connected via CAT-5 and fiber optics cables.
Siemens has been successfully utilizing a range of m+p international’s Coda systems for continuous data acquisition, data processing and real-time monitoring for several years at its test facilities in Duisburg. These stationary Coda data acquisition units acquire and verify not only the performance data and thermodynamic parameters but also the vibration data of turbomachines. Several turbomachines are tested in parallel for acceptance tests. A single stationary data acquisition unit acquires up to 168 process signals and 48 vibration signals.
The mobile 96-channel Coda system supports the existing stationary Coda units and significantly expands the possibilities of turbomachinery testing at Siemens.
For more information on this interesting application please read our 2-page Application Note Mobile Data Acquisition System for Turbomachinery Testing or our new 8-page Coda brochure.
3. SO Analyzer and MATLAB Working in Harmony
SO Analyzer is m+p international's renowned dynamic data acquisition, analysis and reporting system with integrated analysis across a wide range of applications from Modal to Sound Quality.
To use your own MATLAB scripts with SO Analyzer it can co-operate with MATLAB in two ways: file exchange using MAT files or via remote program control.
a. File Import/Export
This interface simplifies the procedure and ensures naming consistency. Optionally full data header data can be transferred enhancing reporting and auditing.
b. Remote Control
For example this command in MATLAB produces a 2-dimensional array containing a hump:
The SO Analyzer code required to create the same hump in a MATLAB workspace is as follows:
You can see that this simple BASIC instruction can be used to send any command to MATLAB.
These operations of transferring data to MATLAB, manipulating the data and then transferring it back can be undertaken without running MATLAB, the only proviso being that MATLAB is installed on the system.
Existing users will find two user programs in the UserPrograms directory which can be used for familiarisation and the basis for developing user specific procedures:
4. Dates for Your Diary
Please visit m+p international at the following events this spring:
Aerospace Testing Seminar
Noise & Vibration Conference and Exhibition
We would be pleased to see you.
Well, that brings to a close this edition of the m+p international Newsletter. If there are items of info you would like to see here or if you have useful tips for the rest of the environmental test world, then please send us your pointers and we'll include them in the next edition.
Please forward this Newsletter to your colleagues if you have found it of interest, spread the word...
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