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On-line detection device and detection method for steel cord defects based on electromagnetic induction

An electromagnetic induction and detection device technology, applied in the direction of material magnetic variables, etc., can solve problems such as poor reliability, low sensitivity, and low precision, and achieve improved safety and reliability, high detection accuracy, and strong adaptability Effect

Active Publication Date: 2017-08-01
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Purpose of the invention: The purpose of the present invention is to provide an online steel cord defect detection device based on electromagnetic induction, so that it can overcome the common problems of low sensitivity, poor reliability and low precision in the traditional steel cord defect detection technology. More accurate and reliable, stable performance; another object of the present invention is to provide an online detection method for steel cord defects based on electromagnetic induction

Method used

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  • On-line detection device and detection method for steel cord defects based on electromagnetic induction
  • On-line detection device and detection method for steel cord defects based on electromagnetic induction
  • On-line detection device and detection method for steel cord defects based on electromagnetic induction

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Embodiment 1

[0027] Embodiment 1 An online detection device for steel cord defects based on electromagnetic induction

[0028] An on-line detection device for steel cord defects based on electromagnetic induction includes two parts: a sensor and a controller, and the sensor and the controller communicate data through their respective bluetooth modules.

[0029] Such as figure 1 As shown, the sensor includes a detection module, a signal processing module, a power module and a Bluetooth module. Wherein, the detection module is composed of a signal generation module and an electromagnetic induction module, and the signal generation module is connected with the electromagnetic induction module. The detection module is connected to the signal processing module, and the signal processing module is connected to the bluetooth module. Both the signal processing module and the bluetooth module are powered by the power supply module respectively, and the power supply module provides 5V power supply....

Embodiment 2

[0040] Embodiment 2 On-line detection method for steel cord defects based on electromagnetic induction

[0041] An online detection method for steel cord defects based on electromagnetic induction, comprising the following steps:

[0042] Step 1) Based on 555 timer and induction coil L 1 The astable multivibrator composed of 18 is used as a signal generating module to output an alternating signal to excite the coil L 2 19 is loaded with the alternating signal output by the signal generation module, and the steel cord 16 of the measured object passes through the excitation coil L 2 19 and induction coil L 1 18 were detected;

[0043] Step 2) Excite coil L 2 19 An alternating magnetic field is established through the loaded alternating signal, and the alternating magnetic field passes through the excitation coil L 2 An eddy current is induced in the steel cord 16 in 19, and the eddy current generates a corresponding induced magnetic field and affects the excitation coil L ...

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Abstract

The invention discloses an on-line defect detection device for steel cords based on electromagnetic induction and belongs to the field of nondestructive detection. The on-line defect detection device comprises a sensor and a controller, wherein the sensor comprises a detection module, a signal processing module, a power supply module and a bluetooth module, and the detection module is composed of a signal generation module and an electromagnetic induction module; the controller comprises an ARMCortex-M0+, a communication module, an alarm module, a power supply module, a bluetooth module, a key and a display screen; the sensor and the controller carries out data communication through the respective bluetooth modules, and ARM completes synchronous operation with a steel cord production instrument through the communication module. The invention further discloses a detection method of the device. The change of coil inductance caused by the defects of steel cords is converted to the change of signal generating frequency of the signal generation module, so that the device is high in detection precision, good in reliability and great in adaptability. The detection method is real-time and efficient and good in practicality.

Description

technical field [0001] The invention belongs to the field of non-destructive testing, and relates to an on-line detection device for steel cord defects based on electromagnetic induction and a detection method thereof. Background technique [0002] With the construction of highways in my country and the rapid development of the automobile industry, steel cords, as an important skeleton material for the belt layer of radial tires, have higher and higher quality requirements; in the manufacturing process of steel cords, production equipment and processes Affected by factors such as the process, various defects and broken wires often occur inside it, which seriously affects the product quality and service life of steel cords and tires. In order to ensure the operating performance and safety indicators of steel cords, during production In the process, it is particularly important to carry out defect detection. [0003] The current steel cord defect detection technology is basical...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/82
Inventor 孙智权张千陈明明赵不贿陈园园童钢
Owner JIANGSU UNIV