6
Laser Triangulation Sensors. RF602 Series
RF602 [Revision 1.2.0] 28.01.2019
6. Example of item designation when ordering
RF602(BLUE)-X/D-SERIAL-ANALOG-IN-AL--M
Symbol
Description
(BLUE)
Blue laser option (405 nm or 450 nm)
X
Base distance (beginning of the range), mm
D
Measurement range, mm
SERIAL
The type of serial interface: 232 (RS232) or 485 (RS485)
ANALOG
Attribute showing the presence of analog output: 4…20 mA (I) or 0…10 V (U)
IN
Synchronization input
AL
User programmable input/output signal
М
Cable length, m
Example:
RF602-65/250-232-I-IN-AL-3 – red laser, base distance - 65 mm, measurement range - 250 mm,
RS232 serial port, 4…20 mA analog output, synchronization input and AL output are available, cable length -
3 m.
7. Structure and operational principle
Operation of the sensors is based on the principle of optical triangulation (Figure 1).
Radiation of a semiconductor laser (1) is focused by a lens (2) onto an object (6).
Radiation reflected by the object is collected by a lens (3) onto a linear CMOS array (4).
Moving the object (6 - 6') causes the corresponding shift of the image. A signal processor
(5) calculates the distance to the object from the position of the light spot on the array (4).
Figure 1
8. Dimensions and mounting
8.1. Overall and mounting dimensions
Overall and mounting dimensions of the sensors are shown in Figure 2. The sensor
housing is made of anodized aluminum. The front panel of the housing has a glass window.
The housing also contains mounting holes. The cable is mounted on the sensor without
connector.
