Vortex detection data gathering device

Abstract

The invention relates to a vortex detection data gathering device, comprising a control unit, a DSP module, a double-port RAM module, an one-chip microcomputer module, a data collection and communication system software; the control unit is separately connected with the DSP module , the double-port RAM module, the one-chip microcomputer module, and the data collection module via signal lines. A DSP data collection and data processing program collects and processes data, the DSP module stores the collected data in the double-port RAM module, and the one-chip microcomputer module controls the program to process and access to the data stored in the double-port RAM module through a logic, communicates with a hose PC and a communication program via a human-machine interface, and completes the data off-line analysis and processing. The vortex detection data gathering device solves problem that the vortex detection device in the prior art cannot simultaneously detects sensitivity and depth, and meets the requirements that large amount of data during metal surface crack vortex detection is needed to be collected for analysis and calculation, and the data is needed to be real-time processed. The system has a friendly human-machine interaction function.

Description

technical field [0001] The invention relates to a data acquisition method, in particular to an eddy current detection data acquisition device. Background technique [0002] After long-term operation of mechanical equipment, its load-bearing structure and key components are prone to defects such as fatigue cracks, which will seriously affect the normal operation of the equipment and even lead to personal safety accidents. Crack detection is one of the issues that must be given sufficient attention in the machinery industry to ensure that cracks can be effectively detected before they pose a threat. Eddy current testing is a non-destructive testing technology that has developed rapidly in recent years. It has the advantages of simple structure, non-contact measurement, high sensitivity, good frequency response characteristics, and is not affected by oil pollution. It is especially suitable for fatigue cracks and stress cracks on the surface of metal components. Elm test. For...

AI Technical Summary

Problems solved by technology

[0002] After a long period of operation of mechanical equipment, its load-bearing structure and key components are prone to defects such as fatigue cracks, which will seriously affect the normal operation of the equipment and even lead to personal safety accidents