User`s manual

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iNspect Express User’s Manual405-00026-00

35Rev 1600; 12 July 2010

• Sensitivity – a higher sensitivity detects less sharp or less sudden transitions from dark to light.

The field to the right (in the Properties window) shows the histogram or intensity plot for pix-

els along the Region, and the shaded area indicates the Sensitivity level. You can change the

Sensitivity level using the slider, or by dragging the boundary between white and shade in the

field. The shaded and white areas are reversed if you change the Direction setting.

f. Click on the padlock button

to lock the value for “Perfect” so it does not change as you

adjust or move your measurement.

g. Click the “Preprocess” button

to add image filtering, or feature enhancement. Adding

preprocessing may increase inspection time. Please refer to page 15.

h. Click on the “check” button

to accept changes and close the Tip Properties box. Click

on the X button

to close without changes.

NOTE You can use the Point for other measurements. You can erase the point, leaving

only the Search box, and the angle measurement; however, the Angle tool is

more accurate for measuring angles. The Tip tool is for use with noisy or poorly

defined edges, or edges that are not straight.

Using the Rake Tool

The Rake tool measures the distance between two parallel edges, by drawing a group

of lines between the two edges and measuring the distance along the length of those

lines.

a. Click on the “Rake” button. Move the mouse over the image in the Work Area. You should

see the edges in the image highlighted as you move across them.

b. Find two edges that match your measurement. Click on one,

and a “rubber” line appears and follows your cursor move-

ment. Click directly opposite on the second edge. Now click

along this second edge, to set the width of the Rake. Click

directly opposite on the first edge. A group of “ruler lines”

appears between the two edges, with four corner points.

c. When the Rake tool is selected, you can move the corner

points if they are not exactly where you wanted. Moving the

corner points also changes the spacing between the ruler

lines.

d. The small boxes that appear around the end points of each

ruler line, define the search area for locating each end point.