1. ME 411/511Prof. Sailor Data Acquisition & LabView Lecture goals… –Learn the basics of how to use and modify LabView Virtual Instruments –Become familiar with the data acquisition hardware used in the lab Note: some screen shots may be from prior versions of LabView, but the functionality is essentially unchanged…

2. Getting Started ME 411/511Prof. Sailor Start  Programs  National Instruments LabView

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4. ME 411/511Prof. Sailor More than 100 pages… some very useful info….

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9. ME 411/511Prof. Sailor This front panel area is essentially the “front panel” of the virtual instrument that you will create. The user of your VI sees this.

10. ME 411/511Prof. Sailor This block diagram (aka wiring diagram) is the “guts” of your virtual instrument. The user does not see this, but this is essentially what controls the functionality of your Instrument. It is comparable to the inside of an actual Instrument. You can see both the block diagram and front panel together by clicking “Window  Tile Left and Right” or “… Tile Up andDown”

11. Block diagram and front panel menus File Edit View Project Operate Tools Window Help ME 411/511Prof. Sailor

12. Front Panel Buttons Run Run continuously Stop Pause ME 411/511Prof. Sailor

13. ME 411/511Prof. Sailor Block Diagram Buttons Highlight execution

14. ME 411/511Prof. Sailor Useful Toolbars – Controls and Functions Right click in Front Panel to get Controls Right click in Block/wiring Diagram (back panel) to get Functions

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19. ME 411/511Prof. Sailor Functions Select a vi

20. ME 411/511Prof. Sailor Sample vi Open LabView and select New vi In wiring diagram add 2 numeric constants and a multiplication operator In Instrument window add a numeric indicator or meter

21. ME 411/511Prof. Sailor Cursor turns into a wiring spool. Click on appropriate terminals to connect inputs and output of multiplication operation Click Run button in Front panel to obtain result.

22. ME 411/511Prof. Sailor LabView tips and shortcuts Undo last z Remove all broken wires B Right click on a function or control to learn more about it –Properties –Description and Tip –Help (gets wiring diagram) Wires/connections are color-coded for variable type

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25. ME 411/511Prof. Sailor Data Acquisition in ME 411/511 Hardware: –USB 12-bit Data acquisition cards –USB 24-bit 4-channel Thermocouple cards Software: –Labview (8.x) –Virtual Instruments