FPGA (Field Programmable Gate Array) based laser diameter measuring method

Abstract

The invention discloses an FPGA (Field Programmable Gate Array) based laser diameter measuring method used for detecting the diameter of a cable in real time. The method comprises the following steps of: (1) generating a parallel light, traversing the cable to be measured in the parallel light; (2) partially ejecting the generated parallel light after the parallel light is shielded by the cable to be measured; (3) converging the partially ejected parallel light and converting the light into an analog electric signal by virtue of a photoelectric sensor; (4) receiving and amplifying the analog electric signal; (5) receiving the amplified analog electric signal and carrying out wave treatment; (6) receiving the analog signal subjected to the wave treatment and converting the analog signal into a digital signal; (7) receiving the digital signal and carrying out operation processing; and (8) receiving the digital signal subjected to the operation processing and displaying the digital signal. The FPGA based laser diameter measuring method provided by the invention is applicable to real-time online detection under the working conditions that the speed of a production line is higher and the cable shakes, and the requirement of measuring the diameter of the cable at high speed and high accuracy in a high frequency environment is met.

Description

technical field [0001] The invention relates to the field of cable detection, in particular to an FPGA-based laser diameter measuring method. Background technique [0002] In recent years, my country's cable industry has developed rapidly. However, most of the production lines of my country's cable manufacturing enterprises have not installed online testing equipment, and still follow the backward labor-intensive production mode. Most cable varieties have backward production technology and consistent product quality. Cannot be effectively guaranteed. The important parameters to evaluate the quality of cable products are online measuring equipment such as outer diameter and eccentricity index. In order to improve the quality of cable products, it is urgent to develop an online cable diameter detection device that can meet the high-precision detection requirements and adapt to the jitter environment of high-speed production lines. [0003] There are many methods for measuring ...

AI Technical Summary

Problems solved by technology

The traditional design architecture based on single-chip microcomputer not only has strict restrictions on the maximum working frequency of the processor, but also puts forward more stringent requirements on the time consumption of program instruction execution and software system reliability design brought about by the software working mode.

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