Portable laser rail profilometer (PRP) is designed for non contact registration of cross-section of the railhead acting face.
The main functions of PRP are:
- obtaining the information on the cross-section profile of the working railhead surface;
- full profile scanning and analyze of the railhead acting face;
- visualization of the combined graphical images of actual and new crosssection.
PRP Series
More photo PDA based handheld instruments are employed for laser scanning and measurement of brake disks wear parameters. The devices are supplied with database and software package for disk wear data storage and processing.
Railhead vertical wear, mm
-5,0 …+14,0
Lateral railhead wear, mm
-5,0…+18,0
Redused railhead wear, mm
Up to 14,0
Rail Profile Measurement Gauge PRP Series. Specification
| Name of parameter | Value |
| Railhead vertical wear, mm | -15,0 ...+20,0 |
| Lateral railhead wear, mm | -15,0...+20,0 |
| Redused railhead wear, mm | Up to 20,0 |
| Scanning angle inside the rail track, degrees | 108 |
| Scanning angle outside the rail track, degrees | 108 |
| Inaccuracy, not more than, mm | ±0.1 |
| Scanning time, sec | 10-12 |
| Digital readout device (PDA) dimensions, mm | 112,5×95,5×22,7 |
| Laser module dimensions, mm | 293×230×230 |
| Power supply, laser module |
3,7V Li-ion battery, 6800mАh |
| Power supply, PDA |
3,7V Li-polymer battery, 3300mАh |
| The number of measurements that can be taken before battery recharge is not less than | 500 |
| PDA memory capacity, no less | 100 000 measurements |
| Interface to PC | Bluetooth |
Rail Profile Measurement Gauge PRP Series. Complete Set
| Designation | Name | Quantity | Weight kg |
| RF303 | PDA | 1 | 0,4 |
| RF570 | Laser scanning module | 1 | 3,5 |
| RF570.40 | Charging device 5V 3.0A for PDA and laser module | 2 | 0,2 |
| RF570.42 | Universal cable (USB-port) | 1 | |
| RF570.43 | Bluetooth/USB — adapter | 1 | |
| RF570.30 | Packing case | 1 | 1,5 |
| PRP_DB | Database management system (CD) | 1 | |
| RF570UM | User’s manual | 1 | |
| Calibration tools (optional): | |||
| RF570.20.10 | Calibration unit | 3 | |
| RF570Calibr | Software |
Operator mounts the laser scanning module onto the railhead to be measured.
Having received a command from PDA or PC, the laser module performs non-contact scanning of rail surface. Measurement results (geometric parameters and profile of the surface) are displayed on PDA, can be saved in the PDA memory, and transferred to the PC database. Simultaneously, additional parameters can be saved: date, operator number, permanent way division, track number, rail type, etc.
Rail profile measurement gauge PRP Series