Online diameter detection method of varnished wires

Abstract

The invention discloses an online diameter detection method of varnished wires. The online diameter detection method includes steps of acquiring diameter images of the varnished wires; filtering noise in the diameter images; subjecting the diameter images which are treated by noise filtering to edge detection to obtain edge images; calculating the diameter of the varnished wires according to the edge images. By adopting the edge detection method combining the iteration method to segment threshold of the images and the edge tracking method based on image scanning, background and target of the edge images obtained are well differentiated, edge continuity, no fake edges and burrs are generated, edge width is single pixel, and edge details are well reserved, so that the online diameter detection method has higher detection accuracy. Meanwhile, compared with a conventional edge detecting method, the edge detection method costs less time, so that the online diameter detection method has higher detection speed. In conclusion, the online diameter detection method has high theoretical value and engineering application population value.

Description

technical field [0001] The invention belongs to the field of control and instrumentation, and relates to an online detection method for the diameter of an enameled wire. Background technique [0002] Enameled wire is a kind of winding wire composed of two parts: conductor and insulating layer. This kind of winding wire is coated with one or more insulating materials on the surface of the conductor. The coating thickness of the insulating material of the enameled wire with good performance is proportional to the diameter of the inner layer conductor, and the coating of the insulating layer is uniform and continuous. Too thin or too thick insulating coating will affect the performance of enameled wire. Therefore, the uniformity of the insulating coating and the uniformity of the wire diameter are one of the important factors that determine the insulation performance of the enameled wire. However, in the production process of enameled wires, for some reason, the enameled wire...

AI Technical Summary

Problems solved by technology

[0004] At present, there are few domestic systems dedicated to measuring the diameter of enameled wires, and most of the enameled wire diameter measurement stays in the stage of manual offline operation. Manual measurement brings great constraints, mainly as follows: On the one hand, manual measurement depends on the measurement results Observation, susceptible to subjective factors

And long-time reading work will inevitably make people tired, reduce the accuracy of readings, and will cause large errors in the measurement results, which will affect the measurement results; on the other hand, the efficiency of manual measurement is limited. quantity, causing an increase in cost

At the same time, manual measurement is easy to cause a certain degree of damage to the paint film of the enameled wire, which affects the performance of the enameled wire

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