We are pleased to introduce a new generation of our measuring machine designed for inspection of Wedge Wire Screens. Wedge Wire Screen also called Johnson Screen or Wedge Wire Profile are intended for the construction of high-quality water wells, oil wells, gas wells and other filtration equipment. One of the main parameters characterizing the quality of the screen is the constancy of the interwire gap (slot opening) along its length. Currently, gap measurements are primarily performed manually using feeler gauges, which is extremely inefficient and unreliable. Our machine enables fully automated, contactless inspection, guaranteeing the highest level of product quality.
Machine design:
The machine contains a frame, which carries the linear motion system, now it is 12 m length system instead of 8 m for previous model. An industrial camera with special LED illumination is installed on the carriage of the linear motion system. Compared to the previous model, we've increased autofocus range, improved the illumination characteristics and repositioned the camera, significantly increasing image contrast and, as a result, improving the accuracy and reproducibility of measurements. In the extreme position of the carriage, outside the controlled screen, the calibration template is installed. The machine is powered and controlled via a central computer using specialized software.
How it works:
The screen is placed on base rollers installed along the machine. The industrial camera is placed in such a way that its field of view is located in the diametrical section of the screen. The camera moves along the screen and captures the image of its surface. Before scanning the screen, the system is auto-calibrated by measuring the built-in template. The software analyzes the received images and calculates the dimensions of the gaps. The process is repeated for different positions of the screen as it gradually rotates around the axis.
Main parameters (can be changed on request):
| Parameter | Value | |
|---|---|---|
|
Controlled screens length, up to, m |
12 |
|
|
Measured gaps, mm |
0.05…2 | |
| Measurement accuracy, mm |
±0.01 |
|
| Measurement speed, mm/s |
100 |
|
Detailed Manual of the system is available here.
Demo video here.