Version 2.X Users

Sine control has come to VibeLab! All owners of VibeLab VL-144 machines running V2.9 and down are encouraged to contact Labworks to arrange for your free hardware and software upgrade. If you purchased a VL-144 VibeLab Pro system with random control only running software V2.90 or lower, you are eligible for this offer. The software version is displayed on your VibeLab introduction screen for reference. In order to incorporate the additional filter circuitry required for sine operation, it is necessary to exchange the Labworks VibeLab output card. This must be done at the factory to insure proper calibration and operation. The exchange and upgrade are free to the original VibeLab purchaser after incoming freight. Contact the factory to schedule the exchange. Send only the PC itself, no peripherals are required. Your system will be returned within a few days, freshly factory calibrated and bearing the latest version VibeLab software and hardware. This offer is not applicable to VL-145 controllers.

Version 3.X Users

VibeLab Version 6.17 is now available for free download. Thanks to a little help from a few of our controller users, we have been able to locate and crush a couple of pesky bugs. The fixes are in and available from this site or contact the factory to get your upgrade CD. This software works with all files and programs generated with any 3.X version software and most users will not see any difference in operation: even the preferences and last test data will remain unchanged! The install self starts from the CD and will automatically replace the relevant files if they have not been relocated by the user. The download version will require a click on the setup icon in the download folder to complete the install.

Use the Drop Down buttons for programming constant level Sine testing

Very often, swept sine testing involves sweeping frequency at constant displacement or acceleration levels with "cross over" frequencies at the juncture of two adjacent levels. A test specified to sweep at 10 g's pk unless limited by .5 in p-p displacement is an example. For this specification, the controller would hold constant 0.5 in p-p displacement while sweeping below 19.78 Hz and 10 g's pk while above. The "cross over" frequency being 19.78 Hz. Your VibeLab controller handles this type of specification effortlessly and even facilitates its programming by use of the constant level drop down buttons. On the Sine breakpoint entry pad, a set of four buttons will appear immediately below the last breakpoint entered. To form a constant level, simply click on the button below the level you wish to hold constant, and it will automatically be transferred to the next breakpoint. In that breakpoint, enter the next desired constant level and the "cross over" frequency is automatically calculated. Again. click on the drop down button below the last entered value to form the next constant level. At this point you can enter either the terminal frequency for the sweep, or again enter the next level desired to calculate the next "cross over" frequency.

Tips Archive

We try our best to have our software operate with a minimum of problems but occasionally our customers come across a bug. Please drop us a line if you find a problem or have an operational suggestion. If possible, try to repeat any error to insure that it is not a fluke and give us the exact steps to re-create the error. Thank You. VibeLab@Labworks-inc.com