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4
Using Gauging
for Part Inspection
This chapter describes gauging and provides step-by-step directions for
prototyping a part inspection application in Vision Assistant.
What Is Gauging?
Components such as connectors, switches, and relays are small and
manufactured in high quantity. While human inspection of these
components is tedious and time consuming, Vision systems can quickly
and consistently measure certain features on a component and generate a
report with the results. From the results, you can determine if a part meets
its specifications.
Gauging consists of making critical distance measurements—such as
lengths, diameters, angles, and counts—to determine if the product is
manufactured correctly. Gauging inspection is used often in mechanical
assembly verification, electronic packaging inspection, container
inspection, glass vial inspection, and electronic connector inspection.
Tutorial
In this tutorial, you analyze images of pipe brackets to determine if the
brackets meet their physical specifications. A pipe bracket is a metal piece
of hardware used to secure long, slender parts, such as a tube of bundled
wires.
The goal is to measure angles and distances between features on the
brackets and determine if those measurements fall within a tolerance range.
Figure 4-1 illustrates the measurements and the acceptable values for them.
© National Instruments Corporation
4-1
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