National Instruments NI myRIO, Essentials Manual

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CHAPTER 12. GAUGING STATION 89
2. NI myRIO with power supply and USB cable
3. USB webcam and tabletop camera copy stand
4. Black velvet paper background
5. USB hub (Stratom X-HUB or equivalent)
6. USB flash drive
7. Paper cutout representation of a machined component
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
12.1 Technical Approach
NI Vision Assistant Script
The NI Vision Assistant Machine Vision group contains a variety of tools to
detect lines, edges, circles, and other features relevant to dimensional measure-
ments. Figure 12.3 on the next page illustrates a suggested component that you
can make with stiff paper, a scissors, and a hole punch to represent one side of
a machined component that includes a bevel, a slot, and three bored holes. This
component includes nine specified dimensions to be measured (all distances
in centimeters):
1.
H
= component height,
2. W = component width,
3. S
d
= slot depth,
4. S
w
= slot width,
5.
S
c
= slot center as measured from the right edge,
6. θ = bevel angle in degrees, and
7. R
1
,R
2
,R
3
= three radii of the bored holes.