Two-channel detector

Abstract

The invention relates to a two-channel detector which comprises an oscillation unit, two data acquisition modules, two filter amplifiers and an industrial control computer. Each of the data acquisition modules is provided with an output interface and an input interface. The oscillation unit is connected with the input interfaces of the data acquisition modules through signal lines. The filter amplifiers are connected with the output interfaces through signal lines. The filter amplifiers are connected with a high-speed AD acquisition card through signal lines. The high-speed AD acquisition card is connected to an input port of the industrial control computer through a signal line. The invention provides multiple display modes for selection, and a full-digital design technology is applied. When product specification of a product is changed, there is no need to readjust the detector.

Description

technical field [0001] The invention relates to a detection device, in particular to a dual-channel detector. Background technique [0002] At present, on-line or off-line flaw detection of various non-ferrous metals, ferrous metal pipes, rods, wires, wires, and profiles has become more and more common. There are not many, and the sensitivity of detecting defects of metal pipes, rods, wires, wires, and profiles, such as surface cracks, dark seams, slag inclusions, and opening cracks, is not high. How can we produce modular operations and provide multiple displays? Models, and fool-proof devices that apply fully digital design technology have become people's expectations. Contents of the invention [0003] The present invention overcomes the deficiencies of the prior art and proposes a dual-channel detector. The detector uses an alternating current of a certain frequency to pass through the detection coil. When the test piece is close to the coil, the geometric size, c...

AI Technical Summary

Problems solved by technology

[0002] At present, on-line or off-line flaw detection of various non-ferrous metals, ferrous metal pipes, rods, wires, wires, and profiles has become more and more common. There are not many, and the sensitivity of detecting defects of metal pipes, rods, wires, wires, and profiles, such as surface cracks, dark seams, slag inclusions, and opening cracks, is not high. How can we produce modular operations and provide multiple displays? Mode, and the fool-type equipment that applies fully digital design technology has become people's expectation

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