Optical fiber sensor system for detecting defect on surface of steel ball

Abstract

The invention concretely discloses an optical fiber sensor system for detecting the defect on the surface of a steel ball. The system comprises a reflection type optical sensor probe, a 820nm light emitter, photoelectric converters, signal processing integrated circuit boards and a personal computer (PC). The 820nm light emitter provides a supply source for the reflection type optical sensor probe, the photoelectric converters receive 820nm lights and covert the 820nm lights into analog voltages, and the analog voltages undergo system null-balance, wave detection, wave filtering, amplification and A / D conversion by the signal processing integrated circuit boards to obtain data, and the data are sent to the PC for processing. The application of the optical fiber sensing technology in the steel ball surface quality detection realizes the real-time processing and the automatic nondestructive detection of the steel ball surface quality, and the measurement of a plurality of defect parameters.

Description

technical field [0001] The invention relates to a detection system, in particular to an optical fiber sensor system for detecting surface defects of steel balls, especially capable of realizing multiple defect measurements with one sensor. Background technique [0002] The national standard stipulates that the surface quality of steel balls includes three parameters: surface defects, surface roughness and waviness. However, most of the instruments currently used to detect the surface quality of steel balls can only detect one of the parameters, and the measurement speed is very slow. The method of manually measuring the surface roughness with a microscope or checking with a profiler is widely used in the factory, and the efficiency is very low; the traditional method of manual visual inspection for surface defects has a high false detection rate, or the introduction of foreign steel ball surface defect automatic detectors, the price Expensive, and only detects surface defec...

AI Technical Summary

Problems solved by technology

However, most of the instruments currently used to detect the surface quality of steel balls can only detect one of the parameters, and the measurement speed is very slow

The method of manually measuring the surface roughness with a microscope or checking with a profiler is widely used in the factory, and the efficiency is very low; the traditional method of manual visual inspection for surface defects has a high false detection rate, or the introduction of foreign steel ball surface defect automatic detectors, the price Expensive and only detects surface defects as a parameter

The limitation of detection efficiency and the blockade of foreign core technologies have led to a proportional random inspection of the quality of domestic steel balls, reducing the reliability of steel balls, which has become a bottleneck in the development of my country's steel ball industry.

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