82
CHAPTER 11. DMM TEST STAND
Functional Requirements:
The
DMM Test Stand
will:
1. Accept an image of the LCD or LED display of a DMM,
2. Display the image with a compound ROI overlay, one for each digit of
the display,
3. Display the detected active segments,
4. Continually run the following measurement sequence while the
sweep
button is pressed:
(a) Increment the analog output (AO) voltage by the user-supplied
AO
step
value,
(b) Wait for the meter display to stabilize,
(c) Read the meter and save the measured voltage to an array, and
(d) Update the plot of measured versus applied voltage.
5. Display the AO voltage applied to the meter and the numerical value read
from the meter,
6. Clear the measurements and initialize the analog output voltage to the
user-supplied
AO start
voltage when
clear
is pressed, and
7. Run a single measurement sequence when the
step
button is pressed.
Required Resources:
1. NI LabVIEW and NI Vision Assistant
2. NI myRIO with power supply and USB cable
3. USB webcam and tabletop camera copy stand
4. Hand-held DMM with LCD or LED display
Deliverables:
1. Lab report or notebook formatted according to instructor’s requirements;
include front-panel screen shots to demonstrate that your application
meets functional specifications
2. .zip archive file containing all project files:
(a) Representative images
(b) Vision Assistant script
(c) LabVIEW project file set
Содержание NI myRIO
Страница 1: ...Ed Doering NI myRIO Vision Essentials Guide...
Страница 2: ......
Страница 11: ...Part I Machine Vision Fundamentals...
Страница 12: ......
Страница 31: ...Part II Introductory Machine Vision Projects...
Страница 32: ......
Страница 38: ...32 CHAPTER 4 CAMERA SETUP...
Страница 44: ...38 CHAPTER 5 STEREO VISION...
Страница 61: ...Part III Machine Vision Application Projects...
Страница 62: ......
Страница 72: ...66 CHAPTER 8 COIN COUNTER...
Страница 85: ...CHAPTER 10 KEYED OPTICAL LOCK 79 Figure 10 3 Typical expected results for the Geometric Matching step...
Страница 86: ...80 CHAPTER 10 KEYED OPTICAL LOCK...
Страница 92: ...86 CHAPTER 11 DMM TEST STAND...
Страница 134: ...128 CHAPTER 17 MARBLE SORTER...
Страница 135: ...Part IV Appendices...
Страница 136: ......
Страница 143: ...B MXPandMSPConnectorDiagrams Figure B 1 MXP myRIO eXpansion Port connector diagram...
Страница 144: ...138 APPENDIX B MXP AND MSP CONNECTOR DIAGRAMS Figure B 2 MSP miniSystem Port connector diagram...
Страница 148: ...142 APPENDIX D BUILD A STAND ALONE APPLICATION...
Страница 149: ...E MarbleSorterConstructionDetails To be continued...
Страница 150: ...144 APPENDIX E MARBLE SORTER CONSTRUCTION DETAILS...