Performance advantages of wire rope nondestructive flaw detector adopting weak magnetic testing

Release time:

2021-11-12

1. The steel wire rope is made of high-strength high-quality carbon steel with high magnetic permeability. The wire rope nondestructive flaw detector uses a magnet to excite the wire rope, and the wire is magnetized under the action of an external magnetic field.

Performance advantages of wire rope nondestructive flaw detector adopting weak magnetic testing

1. The steel wire rope is made of high-strength high-quality carbon steel with high magnetic permeability.Wire rope nondestructive flaw detectorIn the detection, the wire rope is excited by the magnet, and the steel wire is magnetized under the action of the external magnetic field.

2. The comprehensiveness of signal acquisition: the Hall element with high sensitivity is selected. After the magnetized steel wire, any tiny △B will cause the change of the electrical signal △V.

3, the characteristics of signal acquisition: broken wire signal, wear signal, external environmental impact and other different characteristics of the signal can be all shown.

4. Filtering of signal acquisition: The system can effectively filter the acquired signal and guarantee it.

5. In addition to the real-time output mode, the wire rope non-destructive flaw detector can be detected first and then downloaded, that is, the data memory is used to collect and store data on site. After the detection, the data memory is separated from the detection head and taken away from the site to facilitate data downloading.

6. Check the detection waveform in real time at the detection time. If the defect signal is encountered, the parking site can be checked.

7. The detection waveform diagrams of the same steel wire rope at different stages can be compared with the diagram, so as to intuitively understand the growth information of steel wire rope defects, and to clarify which broken wires are newly added broken wires and which positions have increased the number of broken wires. The waveform diagrams of multiple steel wires under the same working conditions can also be compared with the diagram to master the usage rules of steel wires.

8, wire rope nondestructive flaw detector as a measuring instrument, to ensure the accuracy and accuracy of detection is the basis. Repeatability is an important embodiment of accuracy. The results of two or more tests before and after the same wire rope with the same instrument should be consistent.

　　9、Non-destructive testing of steel wire ropeThe detection signal of the instrument is the original output signal, that is, the change value of △Vd with △B to ensure the authenticity of the detection signal.