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Electromagnetic Inductive RFID System
User's Manual
SECTION 6
Appendices
Influence of Metal behind Tags (Reference)
Take into consideration the influence of metal behind Tags when installing them.
The communications range deteriorates if there is any metal material behind the Tag. The following
graphs show the deterioration in the communications distances depending on the distance between
the Tag and the metal behind the Tag (same size as the Antenna).
■
V670-D13F01H
•
Metal: Aluminum
•
Metal: Iron
㪈㪇㪇
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㪊㪇
㪉㪇
㪈㪇
㪉
㪋
㪍
㪇
㪈㪇 㪈㪉 㪈㪋
㪏
㪈㪏 㪉㪇
㪈㪍
㪉㪋 㪉㪍 㪉㪏
㪉㪉
㪊㪇
Distance between Tag and metal (mm)
Percent of communications distance (%)
* The communications
distance without metal is
100%.
㪈㪇㪇
㪐㪇
㪏㪇
㪎㪇
㪍㪇
㪌㪇
㪋㪇
㪊㪇
㪉㪇
㪈㪇
㪉
㪋
㪍
㪇
㪈㪇 㪈㪉 㪈㪋
㪏
㪈㪏 㪉㪇
㪈㪍
㪉㪋 㪉㪍 㪉㪏
㪉㪉
㪊㪇
Distance between Tag and metal (mm)
Percent of communications distance (%)
* The communications
distance without metal is
100%.
Communica-
tions dis-
tance
Distance
between
Tag and
metal
behind
Tag
Metal
CF Reader/Writer
Summary of Contents for V670-CF01
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