R1Dx
IO-Link radar position sensor
10
5 Function
5.1 Measuring principle
The radar sensor determines the distance, speed and direction of movement of objects based on
FMCW (Frequency Modulated Continuous Wave) radar.
The device emits high-frequency electromagnetic waves which are reflected by the object. The
reflected energy is picked up and evaluated by the device’s receiving antenna.
2
1
Fig. 1: Measuring principle
1:
Radar lobe
2:
Object
5.2 Operating modes
The device can only be configured via IO-Link. The software can be downloaded at
Up to three different operating modes can be set. These differ in the maximum distance, distance
resolution, maximum velocity, velocity resolution and switching frequency.
The following operating modes can be set:
Standard
Long range,
high velocity
High switching frequency
Max. distance [m]
20
50
20
Distance resolution [mm]
100
370
100
Max. velocity [m/s]
± 6
± 15
n/a
Velocity resolution [m/s]
0.35
0.38
n/a
Switching frequency [Hz]
20
20
100
n/a = not applicable
These values are for orientation only, more detailed information can be found in the respective
technical data sheets.
Resolutions and accuracies as measured with corner reflectors (E23013 for “Standard” mode,
E23014 for “Long range” mode).
If the velocity limits are exceeded, the counter starts over, i.e. the measured value does not
correspond to the actual velocity.
