RJS Inspector D4000 Auto Optic (FIRMWARE version A.06 and Later) User Manual
Page 83
Operator
’s Guide
Appendix K
002-5564
RJS, Minneapolis, MN
75
Technology Park/Atlanta, P.O. Box 105113
Atlanta, GA 30348-5115
Threshold (Global Threshold)
See Global Threshold)
Transmission Mode
The mode where light is transmitted through a film
master symbol rather than reflected from a printed
symbol.
Truncation
Decreasing the length of the bars in a bar code sym-
bol below the normal specification. Truncation de-
creases a symbol
’s o
mni-directional readability and
should be avoided.
Valley
The graphical pattern on a scan reflectance profile
which looks like a
“U” or “V.” Within a profile a valley
represents a bar. One or more valleys could also be
found within an element representing a reflectance
change within an element.
Vertical Redundancy
The availability of more than one scan path through a
bar code symbol.
Visual Measurement
Measurements obtained by using human vision in the
determination of characteristics of the bar code sym-
bol.