MEDICAL INSTRUMENTATION

👉LabVIEW Chapter 1👈

This blog is a summary in How to Getting Start with LabVIEW. This summary is based on the National Instrument manuals. Click this link for more information http://www.ni.com/pdf/manuals/373427j.pdf 

1. Launching LabVIEW

Getting Started window appears  when launch LabVIEW.

2. Opening a New VI from a Template

- Launch LabVIEW

- In Getting Started window > New or VI from Template

- From Create New list > select VI > From Template > Tutorial (Getting Started) > Generate and Display > OK

- Select Window > Show Block Diagram and Front Panel

3. Adding a Control to the Front Panel

- Select View > Controls Palette

- Select Express > Numeric Controls > Knob and add to the front panel to the left wave form graph.

     

- Save file

4. Changing a Signal Type

- On the Block Diagram, right click Simulate Signal > Properties > Signal Type > Sawtooth > OK

5. Wiring Object on the Block Diagram

- On block diagram, move cursor over Knob > cursor become Arrow or Positioning tool, used to select position and resize objects.

- Used Positioning tool to select Knob to the left of Simulate Signal Express VI and inside the gray loop.

- Deselect Knob by clicking a blank space on block diagram.

- Move cursor over Arrow on the Knob, cursor becomes a wire spool or Wiring Tool used to wire object together on block diagram > click arrow on Knob > click Amplitude to wire the two object together.

- Save file

6. Running VI

- Display front panel > click Run > move cursor over Knob, use Operating tool > turn the knob to adjust the amplitude

- Run button changes to a darkened arrow to indicate the VI is running. > click STOP button to stops the VI.

7. Modifying a Signal

- In block diagram, use Positioning tool > click wire that connects the Simulate Signal Express VI to Waveform Graph > press Delete to delete this wire

- Click Function palette > Express > Arithmetic & Comparison > Formula Express VI place on block diagram. Configuration Formula dialog box appears.

- Configure formula dialog > Help

- Change the text in Label column of the dialog box from x1 to Sawtooth > click Formula text box at the top of Configure Formula.

- Define value scaling factor by entering *10 after Sawtooth in Formula > OK

- Click the arrow on the Sawtooth output > click arrow on Sawtooth input of the Formula Express VI to the Waveform Graph.

8. Display Two Signals on a Graph

- Block diagram > move cursor over arrow on Sawtooth output

- Use Wiring tool to wir Sawtooth output to Waveform Graph > Save file

- Return to front panel, run VI and turn knob control. Graph plots original sawtooth wave and scaled sawtooth wave with 10 times the amplitude. > click STOP

9. Customizing a Knob Control

- Right click the front panel knob > select Properties from shortcut menu to display Knob Properties > click Appearance to display Appearance

- In Label on Appearance > delete label Knob > enter Amplitude in text box

- Click scale > Scale style , place checkmark in Show color ramp > OK >close Knob Properties > Save

will be continue 😀😀😀