Physics 434 Welcome Toby Burnett [prof] Durmus Karatay[TA] Jason Alferness [Equipment] David Pengra [consultant]

Preliminaries class schedule. Lab often available (modulo Chemistry) The text book – reference only home versions of the program: uwin Grading (lab reports/homework, project) –2-person collaborations, same grade to each –The lab “report” is the VI: Documentation (under properties) –Intro, discussion, conclusions Save graphs with VI (operate | make current values default) Comments in the diagrams, well-labeled front panel CollectIt for turn-in of all assignments. Project –Individual, or collaboration with clearly separate parts

Course objectives Basic concepts involved in experiment; 3 phases –Control –Acquisition –Analysis Will use LabVIEW for all 3. Electronics and Physics: a little Computer interfacing: mostly just understand and use the NI USB module. (Project another story)

Brief Schedule WeekTopic 1Intro to LabVIEW 2,3Module 1: voltage vs. current 4Module 2: Digitial I/O 5Module 3: Kundt’s tube, resonance fit 6,7Module 4: Kundt’s Tube, impulse, FFT 8Module 5: TBD 9 --Project

Explore the interface: Getting Started Activity Run the “NI Launcher” (If 2013) click “LabVIEW 2013 (32-bit) Manuals” –Or C:\Program Files (x86)\National Instruments\LabVIEW 2013\manuals Open “LV_getting_Started.pdf” (Also open ‘LV_Quick_Reference’ in another window, or print it out) Read and follow the instructions in Chapter 1 until “Adding a Control to the Front Panel”

Tools palette Automatic tool selection OperatePosition /size/select Edit Text Wiring toolObject short cut menu Scroll BreakpointProbeGet Color Set color Shift-right click View | Tools Palette

A quick exercise Blank VI Right click on Panel Select a numeric control (knob?) Click on panel to install it Right click again, select numeric indicator, install Open wiring Diagram (cntrl-E or Window | show block Diagram) Use wiring tool to connect them (see how the cursur changes? Run continuously

Simple exercise, continued Add a while loop on diagram (need the Functions Palette: show it, or right-click) –Right-click on input to the condition terminal, select “create control” a stop button just appears! Now just run. Try highlight execution (the light-bulb), probe (mouse near a wire) Turn on the context help (cntrl-H), try tiling the windows (cntrl-T) Add a second indicator, wire it in. Use the labeling and color tools Don’t forget the very important keys: cntrl-Z and Esc

If time… Continue with tutorial, start other activities, read the text and look at the assignment