The system is designed for non-contact measurement of geometric parameters of hot objects, mainly round and rectangular.
Mesurement method - contacless laser scanning.
Hot Objects Geometry Control System. RF038 Series
Hot Objects Geometry Control System. RF038 Series
| Parameter | Value |
| Controlled parameters | diameter, width |
| Measurement range, mm | from 16.5 to 170 |
| Measurement error, mm | ±0.3 |
| Measurement time, s | 3 |
| Laser scanner type | RF627-1700/380-164/198 |
| Nominal distance to object, mm | 1900 |
| Number of measurements before recharging the battery, not less | 100 |
| Number of saved measurements, not less | 1000 |
| Light source |
blue semiconductor laser, 450 nm wavelength |
| Laser output power, mW | <30 |
| Laser safety class | 3R (IEC60825-1) |
| Interface | Wi-Fi |
| Power supply, V | 3.7 V, Li-ion battery, 5400 mAh |
| Weight, kg | 11 |
| Note. Technical characteristics of the system can be changed for a specific task. | |
The operation of the system is based on the principle of laser scanning of the object surface with a rocking 2D triangulation sensor.
The system contains a 2D triangulation sensor (laser scanner) 1 with a protective screen 2, a controller 3 with a power supply 4, a sensor power supply 5, a Wi-Fi router 6. Elements 1-6 are installed on the rocking mechanism 7 equipped with two handles 8, 9. See Figure 1.
Figure 1
The measuring area of the scanner is shown in the figure below:
Figure 2
The system operates as follows. The system is installed on a tripod in the horizontal plane of the object at such a distance that the object is located in the measuring area of the scanner ("Field of View" in Fig. 2).
Figure 3
The laser radiation of the scanner (in the form of a line) is projected onto the
controlled object. The resulting image of the contour (section profile) of the object is
analyzed by the controller that calculates either the diameter of the round object or the width
of the rectangular object.
To eliminate the measurement error caused by the non-perpendicularity of the laser
line with respect to the axis of the object, measurements are made repeatedly when rocking
the scanner around the horizontal axis using handles 7, 8. During the rocking process, the
scanner captures a number of object profiles located at different angles to the object axis.
The controller analyzes the obtained profiles and selects a profile perpendicular to the axis
of the object, which characterizes its true size.
Figure 4. Two extreme positions of the scanner when it is rocking around the horizontal axis
Hot Objects Geometry Control System. RF038 Series