User's Manual

114
Section 6 Reference Data
RFID System
User's Manual
Section 6
Appendices
Influence of Tag Angle (Reference)
Install Antennas and Tags as close to parallel to each other as possible.
Communications are possible even when an Antenna and a Tag are mounted at an angle, but the
communications distance will be shortened. The relation between the angle and the communications
distance is shown below.
 Percentage of Change in Communications Distance for 680-D1KP52MT Angle
 Measurement Conditions
Tag angle (θ°)
0 10 20 30 40
V680-HS51 and V680-D1KP52MT
0% −1% −5% −10% −15%
V680-HS51 and V680-D1KP52MT
(Metal on back: Steel)
0% 0% 0% −4% −28%
V680-HS52 and V680-D1KP52MT
0% 0% 0% −2% −6%
V680-HS52 and V680-D1KP52MT
(Metal on back: Steel)
0% −6% −13% −25% ---
V680-HS63 and V680-D1KP52MT
0% −2% −5% −9% −14%
---: Measurement is not possible because Antenna and Tag would strike each other.
z V680-HS51 and V680-D1KP52MT z V680-HS51 and V680-D1KP52MT
(Metal on back: Steel)
z V680-HS52 and V680-D1KP52MT z V680-HS52 and V680-D1KP52MT
(Metal on back: Steel)
z V680-HS63 and V680-D1KP52MT
Tag
Non-metallic
material
Antenna
Steel
Nut
Toothed
washers
θ
Tag
Non-metallic
material
Antenna
Steel
Nut
Toothed
washers
θ
Tag
Non-metallic
material
Antenna
θ
Tag
Steel
Antenna
θ
Tag
Non-metallic
material
Antenna
θ