Monitoring system for magnetic leakage detection equipment

Abstract

The invention relates to a monitoring system for magnetic leakage detection equipment. The monitoring system comprises a computer interface module, a signal filtering module, a database module, an automatic detection control module and a human-computer interaction interface. By means of the monitoring system for the magnetic leakage detection equipment, manpower resources are saved; and automation and intelligentization of magnetic leakage detection can be realized. A method for achieving the automatic magnetic leakage detection comprises the steps of obtaining signals by a sensor and then judging whether the signals have defects through software. In existing magnetic leakage detection instruments, sensors for detecting a magnetic leakage field are mainly hall devices. The monitoring system has the advantages of being relatively wide in response frequency band, wide in measurement range, small in size, and steady in temperature property and can be very proper for measuring a non-uniform magnetic leakage field generating defects in a pressure container; and the field detection of the equipment is carried out easily. Magnetic leakage signals of a steel pipe, collected by the hall sensor, enter an A/D conversion module through a conditioning circuit, and finally are computed; digital processing, such as denoising, smoothing and mode recognition, is carried out in a computer; detection information of the steel pipe is finally obtained and displayed; and therefore, real-time requirements are satisfied.

Description

technical field [0001] The invention relates to a monitoring system, in particular to a monitoring system for magnetic flux leakage detection equipment. Background technique [0002] Steel pipes are considered to be the most economical and safest transportation medium channels in energy, chemical, pressure vessel and other industries, and are widely used in various fields such as urban pipeline plumbing supply, metallurgical industry, and petrochemical industry. However, in the process of production and transportation, industrial steel pipes are often affected by various cracks, pits and other defects due to the limitations of the production process and the corrosion of the transmission medium. serious damage to life and property. If steel pipe defects are not detected in time and corresponding remedial measures are not taken, leakage accidents will not only cause economic losses, but also cause serious damage to the ecological environment. Therefore, it is of great signif...

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Problems solved by technology

[0003] In the process of testing steel pipes, it is usually necessary to stop work and grind suspected defective parts for testing, which greatly affects the process of industrial transportation and is time-consuming and laborious. Therefore, the development of non-destructive testing for steel pipes is particularly important

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