The device “Profil-1” is intended for measurement of internal surface profiles of stators of the bottom hole motors (BHM). When rotation of the measuring unit of the device around the fixed axis a contactless measurement (by means of the laser) of distances to the surface of the stator and a measurement of rotation angles of the measuring unit (planes of measurements) in relation to starting position are carried out.
Basic technical specifications.
| Length of the screw part of the stator, mm | 2000-3500 |
| Number of teeth | 5-8 |
| Tip diameter of the rubber cover, mm | 58-68 |
| Tip diameter of the metal section, mm | 66-72 |
| The root diameter of the rubber cover, mm | 64-78 |
| The root diameter of the metal section, mm | 74-82 |
| The range of radial measurements when control stator profiles, mm, no less than | 9 |
| Limits of the main maximum permissible error, mm
– when tilting of the analyzed surface in relation to the plane that is perpendicular to the beam of the sensor, less than 10 degrees – when tilting of the analyzed surface in relation to the plane that is perpendicular to the beam of the sensor in the range of 10-50 degrees |
0,03
0,05 |
| Time of the radial measurement of one section from start to achievement of a result, s, no more than | 90 |
Measurement results are saved in PC and can be presented as tables or diagrams.
