Looking to setup triaxial accelerometers quickly and correctly in LMS Test.Lab?
If so, here are three tips for you!:
1. Use Auto Fill
In the LMS Test.Lab "Channel setup" worksheet, highlight the PointId and Direction of a triaxial accelerometer. Hover the mouse in the lower right hand corner of your selection.
Once a Double White arrow appears, drag the mouse down or up to fill in the other channels. The "PointId" field will be automatically incremented, and the "Direction" fields will be filled with the same information as the original triax information.
2. One Wire Triaxial Accelerometers
If you use a Scadas V-24 card or ScadasXS, you can connect a 3 channel triaxial accelerometer with one cable.
For example, if you have a PCB Triaxial Accelerometer (either 4 pin or mini 4 pin), you can order PCB cables:
Compared to a traditional 3 BNC connection, this makes it impossible to cross wire the triaxial directions!
3. Enforce Right Hand Rule Automatically
By default, directions on channels can be set independently. Directions are not checked for compliance to the right hand rule. This can lead to mistakes when doing a Modal Analysis or Operational Deflection Shape.
In Tools -> Channel Setup Visibility, add the channel setup field called "MultiChannel". For any triaxial accelerometer channels, set the "MultiChannel" value to "Triax-RH".
Setting a group of three channels to "Triax-RH" limits the selection of directions to valid Right Hand Rule combinations. No more "flyer points" on Modals and Operational Deflection Shapes!
Hope these tips help!
PS> If you are from Australia, there is a "Triax-LH"....
If you have questions, feel free to contact us!
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