Test software logs real-time vibration data
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M+P International product story
Edited by the Engineeringtalk editorial team
Jul 10, 2003
The latest generation of vibration controller systems can now collect both the original time data and processed data during the same closed loop control test run.
Critical environmental vibration tests can often only be run once to avoid unwanted fatigue life reduction.
This means that the ability to perform post-test analysis on the data measured during the test is even more important: and what better way of doing this than actually recording the raw signals from the test rig.
In the past tape recorders were used, but this is inconvenient and expensive in terms of both equipment and operational manpower so are not often employed so adding test risk.
M+P International reckons it has solved these problems in its latest generation of vibration controller systems that can now collect both the original time data and processed data during the same closed loop control test run.
M+P International's vibration control systems such as the VCP-PC, VibPilot, VibRunner and VibExec now support time-domain recording while running any vibration or acoustic control mode.
Also known as digital throughput, these original gap-free time history data can be very valuable for both post-test analysis and historical archiving in a wide variety of applications.
To ensure the highest integrity of throughput data the simple addition of a PCI plug-in card, and M+P's SmartOffice Throughput Wizard, means that up to 8, 16, 24, 32 channels and beyond can be recorded to disk.
Sample rates up to 102.4kHz on each channel can be used without compromising the vibration test control.
This architecture also provides pre- and post-test data should a unit-under-test failure occur during the test run.
Post test sine, random and shock data can be analysed locally or if the control system is tied up, on a remote PC using, among others, data-reduction methods that mimic the vibration test.
Like M+P's Vibco software the SmartOffice throughput module runs in the same Microsoft Windows NT, 2000 or XP environments with an intelligent wizard providing safe, simple and efficient user guidance.
The eReporter module offers many convenient reporting features, for instance, users can copy and paste all obtained graphical results into ActiveX-compliant applications such as Microsoft Word and PowerPoint for richer and more comprehensive reports.
SmartOffice is scalable and supports modules for modal and advanced modal analysis, acoustic analysis, rotating machinery analysis along with the advanced post-processing wizard.
Repetitive tasks can be automated using a Visual Basic-compatible programming language.
The software package also includes a step-by-step approach to create a geometry model of the unit under test for operating deflection shape analysis.
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