Novel detection data acquisiton device

Abstract

The invention relates to a novel detection data acquisiton device. The novel detection data acquisiton device comprises a control unit, a DSP module, a double-port RAM module, a single-chip microcomputer module and a data acquisiton and communication system software; the control unit is connected with the DSP module, the double-port RAM module, the single-chip microcomputer module and the data acquistion module through signal lines; after the DSP module achieves data acquisition and processing through a DSP data acquisition and data processing program, the DSP module stores acquisition data in the double-port RAM module, the single-chip microcomputer module achieves processing and access, through the program, for data stored in the double-port RAM module through logic control, the single-chip microcomputer module is in communication with an upper PC through a man-machine interface and communication program, and off-line analysis and processing of the data are completed. A contradiction that a traditional eddy current cannot take detection sensitivity and the detection depth into account at the same time is solved well, requirements that analysis operation and real-time processing are needed to be performed on a lot of data in metal surface crack eddy current detection are met, and the system has a friendly man-machine interaction function.

Description

technical field [0001] The invention relates to a data collection method, in particular to a novel detection data collection 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 a long ti...

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