Scan Accuracy - ScanMeg SIM-P User Manual

ScanMeg Inc.
Scan accuracy
The detection precision depends of the sensor model. Each model has a different accuracy of
detection. The numbers of cells are the same for all models. As the field of view increases the
accuracy decreases.
For each model, five different modes of scan can be selected. The five modes are:
Coarse
Standard
Fine
Standard HS
Fine HS
The minimum detectable object dimensions are:
Head Sensor
P150
P225
P300
P450
P600
P150
P225
P300
P450
P600
The accuracy specified in the table is reachable, but under specific conditions only. To obtain a valid
detection under all possible environment and condition, please add 0.025 in. (0.5mm) for each value
shown in the table. When you are in Standard mode, the accuracy is true if you are centered between
the emitter and receiver and within 1/3 of the distance between the emitter and receiver; and ¼ of
the distance is you are in Fine mode. This restriction comes from the cross scan effect.
User Manual
: Scan with the entire receiver's cells available. (1500 scans/sec.)
: Scan with the entire emitter's LEDs available. (800 scans/sec.)
: Cross scan the entire emitter and receiver cells. (400 scans/sec.)
: Scan in standard mode ½ of the field of view. (1400 scans/sec.)
: Cross scan in fine mode ¼ of the field of view. (1400 scans/sec.)
Coarse Standard & Standard HS
0.4
0.6
0.8
1.2
1.6
10
15
20
30
40
25
Scan Accuracy
0.2
0.3
0.4
0.6
0.8
5
7.5
10
15
20
Module SIM‐P
Fine & Fine HS
0.1
0.15
0.2
0.3
0.4
2.5
3.75
5
7.5
10
Version 1.3