CN103792029A - Wireless network-based magnetic stress nondestructive detection system - Google Patents
Wireless network-based magnetic stress nondestructive detection system Download PDFInfo
- Publication number
- CN103792029A CN103792029A CN201210422047.8A CN201210422047A CN103792029A CN 103792029 A CN103792029 A CN 103792029A CN 201210422047 A CN201210422047 A CN 201210422047A CN 103792029 A CN103792029 A CN 103792029A
- Authority
- CN
- China
- Prior art keywords
- unit
- magnetic stress
- wireless network
- magnetic
- stress
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses a wireless network-based magnetic stress nondestructive detection system. The wireless network-based magnetic stress nondestructive detection system is applicable to the detection of the load or residual stress of ferromagnetic materials of large-sized mechanical equipment, mobile equipment and large-sized bridges. The wireless network-based magnetic stress nondestructive detection system includes a plurality of magnetic stress detectors and a remote controller which is connected with the magnetic stress detector through wireless communication, wherein each magnetic stress detector includes an AC magnetization unit, a detection coil unit, an amplifying and rectifying unit, a processing unit, an analog-to-digital conversion unit and a wireless data transmission module. By means of the above manner, the wireless network-based magnetic stress nondestructive detection system is advantageous in improved detection accuracy, shortened testing cycle and low cost. According to the wireless network-based magnetic stress nondestructive detection system of the invention, a wireless communication technology and a magnetic stress detection technology are combined together, and therefore, remote control measurement and monitoring of a measured object can be completed, and the operating states of the ferromagnetic materials with load or residual stress can be effectively monitored, and harmful accidents can be prevented.
Description
Technical field
The present invention relates to load or the residual stress detection technique of ferrimagnet, relate in particular to a kind of magnetic stress nondestructive detection system based on wireless network.
Background technology
Ferrimagnet all can produce different residual stresss in machining and hot worked process, the existence of residual stress has very large impact to the mechanical property of material, particularly evident in the manufacture of weldment and heat treatment process, the existence of residual stress on the one hand workpiece can reduce intensity, make workpiece in the process of manufacturing, produce the defective workmanships such as distortion and cracking, on the other hand in the Spontaneous release process after manufacture, the mechanical property such as fatigue strength, stress corrosion of material is reduced, thereby cause the problems in use.
Therefore, design multiple magnetic stress detection device for ferrimagnet being carried out to residual stress detection people, traditional magnetic stress detection device all needs testing staff to detect near measured object, will certainly produce inconvenience like this for the load of ferrimagnet or the detection of residual stress of some heavy mechanical equipments, movably equipment and large bridge.
Summary of the invention
The object of the present invention is to provide a kind of magnetic stress nondestructive detection system based on wireless network, it has and has improved accuracy of detection, has shortened sense cycle, and cost is low and realized the feature of long-distance remote control measurement and monitoring.
The object of the invention is to be achieved through the following technical solutions:
A magnetic stress nondestructive detection system based on wireless network, it comprises several magnetic stress detecting devices and the remote controllers that are connected by radio communication with magnetic stress detecting device.
Especially, described magnetic stress detecting device comprises ac magnetization unit, magnetic test coil unit, amplifies rectification unit, processing unit, AD conversion unit and wireless data transfer module,
Described ac magnetization unit is for magnetizing measured point, and described magnetic test coil unit is for extracting the electric signal of measured point magnetic characteristic effect of anisotropy, and described magnetic test coil unit sends the electric signal detecting to amplification rectification unit;
Described amplification rectification unit is connected with magnetic test coil unit communication, for receive magnetic test coil unit send electric signal, and to this electric signal amplify, rectification process after, send a voltage signal to processing unit,
Described processing unit communicates to connect with amplifying rectification unit, receives after the voltage signal that amplifies rectification unit transmission, and calculate the two-dimentional magnetic stress of measured point, the size and Orientation of Three-Dimensional Magnetic stress, and send to AD conversion unit,
Described AD conversion unit converts simulating signal after digital signal to, sends to wireless data transfer module, and described wireless data transfer module sends to remote controllers by wireless network again.
Especially, described wireless data transfer module communicates by GPRS or 3G network and remote controllers.
Beneficial effect of the present invention is, the described magnetic stress nondestructive detection system based on wireless network has not only improved accuracy of detection, shorten sense cycle, cost is lower, and wireless communication technology and magnetic stress detection are combined, thereby the two dimension, three-dimensional magnetic stress and the distribution thereof that complete the ferrimagnet to containing load or residual stress are carried out long-distance remote control measurement and monitoring, are effectively monitored the running status of the ferrimagnet that contains load or residual stress, prevent the generation of harmful accident.
Accompanying drawing explanation
According to drawings and embodiments the present invention is described in further detail below.
Fig. 1 is the structural representation that the present invention is based on the magnetic stress nondestructive detection system of wireless network;
Fig. 2 is the calcspar that the present invention is based on the magnetic stress detecting device of the magnetic stress nondestructive detection system of wireless network.
In figure:
1, magnetic stress detecting device; 2, wireless network; 3, remote controllers; 10, ac magnetization unit; 11, magnetic test coil unit; 12, amplify rectification unit; 13, processing unit; 14, AD conversion unit; 15, wireless data transfer module.
Embodiment
Please refer to shown in Fig. 1, Fig. 1 is the structural representation that the present invention is based on the magnetic stress nondestructive detection system of wireless network; The remote controllers 3 that the described magnetic stress nondestructive detection system based on wireless network comprises magnetic stress detecting device 1 and is connected by wireless network 2 with magnetic stress detecting device 1, described remote controllers 3 communicate by any and magnetic stress detecting device 1 of GPRS or 3G network.
Refer to shown in Fig. 2, Fig. 2 is the calcspar that the present invention is based on the magnetic stress detecting device of the magnetic stress nondestructive detection system of wireless network.In the present embodiment, described magnetic stress detecting device 1 comprises for measured point being carried out to magnetized ac magnetization unit 10 and for extracting the magnetic test coil unit 11 of electric signal of measured point magnetic characteristic effect of anisotropy, described ac magnetization unit 10 is for being arranged at the ac magnetization coil on magnetic stress detecting device 1, and described magnetic test coil unit 11 sends the electric signal detecting to amplifying rectification unit 12, described amplification rectification unit 12 communicates to connect with reception magnetic test coil unit 11, for receiving the electric signal that magnetic test coil unit 11 sends, and this electric signal is amplified, after rectification is processed, send a voltage signal to processing unit 13, described processing unit 13 communicates to connect with amplification rectification unit 12, receive and amplify after the voltage signal that sends of rectification unit 12, utilize the size of this voltage signal, the regulation and control of the frequency of orientation and magnetization current, calculate the two-dimentional magnetic stress of measured point, the size and Orientation of Three-Dimensional Magnetic stress, and send to AD conversion unit 14, described AD conversion unit 14 converts simulating signal after digital signal to, send to wireless data transfer module 15, described wireless data transfer module 15 sends to remote controllers 3 by wireless network again.
The described magnetic stress nondestructive detection system based on wireless network is applied the special mode of magnetization according to the magnetic characteristic effect of anisotropy in the ferrimagnet that contains load (residual) stress, complete the transformation of physical influence to electric signal, the real-time conversion that completes digital analogue signal, realizes the transmission of data with wireless remote control technology or radio network technique.Thereby the two dimension, three-dimensional magnetic stress and the distribution thereof that complete the ferrimagnet to containing load or residual stress are carried out long-distance remote control measurement and monitoring, are effectively monitored the running status of the ferrimagnet that contains load or residual stress, prevent the generation of harmful accident, and measure that efficiency is high, method of testing is easy, flexible, can reach any position of tested ferrimagnet object; Measuring accuracy is high, can carry out non-contacting nondestructive measurement, more can survey the cated ferromagnetic object stress in measured object surface.
Claims (3)
1. the magnetic stress nondestructive detection system based on wireless network, is characterized in that: comprise several magnetic stress detecting devices and the remote controllers that are connected by radio communication with magnetic stress detecting device.
2. the magnetic stress nondestructive detection system based on wireless network according to claim 1; It is characterized in that: described magnetic stress detecting device comprises ac magnetization unit, magnetic test coil unit, amplifies rectification unit, processing unit, AD conversion unit and wireless data transfer module,
Described ac magnetization unit is for magnetizing measured point, and described magnetic test coil unit is for extracting the electric signal of measured point magnetic characteristic effect of anisotropy, and described magnetic test coil unit sends the electric signal detecting to amplification rectification unit;
Described amplification rectification unit is connected with magnetic test coil unit communication, for receive magnetic test coil unit send electric signal, and to this electric signal amplify, rectification process after, send a voltage signal to processing unit,
Described processing unit communicates to connect with amplifying rectification unit, receives after the voltage signal that amplifies rectification unit transmission, and calculate the two-dimentional magnetic stress of measured point, the size and Orientation of Three-Dimensional Magnetic stress, and send to AD conversion unit,
Described AD conversion unit converts simulating signal after digital signal to, sends to wireless data transfer module, and described wireless data transfer module sends to remote controllers by wireless network again.
3. the magnetic stress nondestructive detection system based on wireless network according to claim 2; It is characterized in that: described wireless data transfer module communicates by GPRS or 3G network and remote controllers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210422047.8A CN103792029A (en) | 2012-10-29 | 2012-10-29 | Wireless network-based magnetic stress nondestructive detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210422047.8A CN103792029A (en) | 2012-10-29 | 2012-10-29 | Wireless network-based magnetic stress nondestructive detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103792029A true CN103792029A (en) | 2014-05-14 |
Family
ID=50667908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210422047.8A Pending CN103792029A (en) | 2012-10-29 | 2012-10-29 | Wireless network-based magnetic stress nondestructive detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103792029A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106777737A (en) * | 2016-12-27 | 2017-05-31 | 江苏省特种设备安全监督检验研究院 | A kind of crane wheel compression testing device and method |
-
2012
- 2012-10-29 CN CN201210422047.8A patent/CN103792029A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106777737A (en) * | 2016-12-27 | 2017-05-31 | 江苏省特种设备安全监督检验研究院 | A kind of crane wheel compression testing device and method |
| CN106777737B (en) * | 2016-12-27 | 2023-08-08 | 江苏省特种设备安全监督检验研究院 | Crane wheel pressure testing device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101487858B (en) | 1000kV extra-high voltage AC non-contact type electricity checking method and apparatus | |
| CN102680798B (en) | Online measurement method and device for grounding resistor of rod tower | |
| CN202794106U (en) | Stress detecting device based on Barkhausen principle | |
| CN205749397U (en) | A kind of steel tube defect detection device | |
| WO2014063159A3 (en) | Foreign object detection in wireless energy transfer systems | |
| CN103645243A (en) | Electromagnetic nondestructive detection system of power transmission line | |
| CN103235036A (en) | Detection apparatus and method based on electromagnetic detection signal for distinguishing inner and outer wall defects | |
| CN101887048A (en) | Barkhausen detection system and method under condition of high-speed operations | |
| CN103063733A (en) | Wireless network based magnetic stress nondestructive detection system | |
| CN102411132A (en) | Magnetic stress nondestructive detection system | |
| CN103792029A (en) | Wireless network-based magnetic stress nondestructive detection system | |
| CN109787376A (en) | A kind of induction electric energy transmission foreign substance detection system and method | |
| CN202171583U (en) | Magnetic stress nondestructive detecting system | |
| CN202522191U (en) | Magnetic sensor-based device for measuring distance between high voltage line and target object | |
| CN202372475U (en) | Magnetic particle flaw detector for rail car draft sill | |
| CN101692065A (en) | Automatic detection system for oil drilling tools | |
| CN205177059U (en) | Intellectual detection system device of electric fire control detector | |
| CN103792028A (en) | Magnetic stress sensor probe | |
| CN205027699U (en) | Detect automatic early warning device of ferromagnetic material crackle | |
| CN206725738U (en) | Portable permanent-magnetic field detector | |
| CN202330353U (en) | Conductive metal body non-destructive detection device based on electric leakage field | |
| CN206684212U (en) | Side induction type current transformer | |
| CN201532378U (en) | Petroleum drilling tool inspection line | |
| CN103712719A (en) | Intrinsic safety type stress and retained austenite content measuring system | |
| CN206096256U (en) | A power sensor for RF power reflectometer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140514 |