CN201666891U - Impulse eddy detector of detects - Google Patents
Impulse eddy detector of detects Download PDFInfo
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- CN201666891U CN201666891U CN2009201005238U CN200920100523U CN201666891U CN 201666891 U CN201666891 U CN 201666891U CN 2009201005238 U CN2009201005238 U CN 2009201005238U CN 200920100523 U CN200920100523 U CN 200920100523U CN 201666891 U CN201666891 U CN 201666891U
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Abstract
The utility model discloses an impulse eddy detector of defects, which comprises a double-channel differential transducer, a square-wave impulse emitter, an electric impulse receiving and amplifying circuit unit, a logic control calculating circuit unit, a micro processing circuit unit, a printer and a storage unit. The double-channel differential transducer, a square-wave impulse emitting circuit unit are connected with the electric impulse receiving and amplifying circuit unit in serial, and then are connected with a sampling control calculating circuit unit, and is connected with a micro processor. The micro processor is transmitted to the computer, the printer and the storage unit through an interface circuit. The benefits are as follows: defected waves are displayed in double screens and different colors, so the detecting result is clear; double-screen displaying and voice alarming in different frequencies can judge the crack state more easier; an inhibiting circuit can simplify working difficulty of defect detection and increase working efficiency of workers for detect detection. The impulse eddy detector is suitable for wheel-core defect detection of railway locomotive, welding joint defect detection of long steel rail, bogie defect detection, various-ships detect detection, and detection of petroleum and petrochemical pressure vessel in use.
Description
Technical field
The utility model relates to a kind of pulsed eddy current flaw detec.
Technical background
Continuous upgrading along with the machinery manufacturing industry product, the Dynamic Non-Destruction Measurement of large-scale workpiece also is faced with some new challenges, the detection of many large-scale processing component inner structure defectives, it also all is more and more higher requiring in the accuracy of detection with equipment as the flaw detection of rail vehicles core wheel, the flaw detection of long steel rail welding line, bogie flaw detection, the flaw detection of various naval vessels body and petroleum and petrochemical industry pressure vessel etc.In order to satisfy these demands, some professional begins to inquire into and solves this difficult problem with the pulsed eddy-current technique in recent years, at present domesticly also can see a spot of related article,, Beijing space material institute paper of senior engineer slowly be arranged as University of Science and Technology for National Defence Luo Fei road, teacher's Yang Binfeng paper.But with regard to this Study on Technology was made progress at present, technology and equipment that distance is developed application also had sizable distance.Existing eddy current test instrument being applied to nondestructive examination also existing many great defectives, at first is directly to use prior art can't have the defective of certain depth to make detection to the distance surface.The 2nd, when detecting the thicker workpiece of steel-casting, rough surface workpiece, surface anticorrosion layer, testing result is subjected to surface disturbance easily and the edge disturbs, and also needs to do magnetic saturation for ferrimagnet before flaw detection and handles.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of pulsed eddy current flaw detec, and this defectoscope not only can avoid the surface of special workpiece and edge to disturb, but also can avoid the leakage in the actual flaw detection to hinder phenomenon, alleviates flaw detection personnel's labour intensity.
The technical scheme that the utility model adopted is: this design is by the binary channels differential transformer, the square-wave pulse transmitter, and electric pulse receives amplifier circuit unit, logic control computing circuit unit, micro-processor interface circuit unit and computing machine, printing, memory constitute.
Electric pulse receives amplifier circuit unit and resists circuit, controllable-gain circuit, detecting circuit, analog to digital conversion circuit by reception of impulse and be composed in series.Logic control computing circuit unit by the controlling of sampling computing circuit connect sampling memory, display control circuit respectively, display-memory is formed.The micro-processor interface circuit unit is made up of microprocessor and the interface circuit that is attached thereto, supply voltage supervisory circuit, keyboard control circuit, real time clock circuit, nonvolatile memory.
Binary channels differential transformer, square-wave pulse transmitter and electric pulse receive amplifier circuit unit connect after, incorporate controlling of sampling computing circuit unit into, insert microprocessor again, microprocessor is transported to computing machine, printing, memory by interface circuit.
Microprocessor is provided with waveform color separation display routine, and by the control of controlling of sampling computing circuit, the waveform that transfinites is yellow ripple, and the waveform that do not transfinite is green ripple.
Microprocessor also is provided with screen picture subregion display routine, left screen display differential transducer vertical passage waveform, right screen display differential transducer interconnection waveform.
The beneficial effects of the utility model are: adopt double screen, color separation to show the flaw echo explanation obviously, have to hinder not have to hinder to come into plain view; The audible alarm of double screen demonstration and different frequency can make the situation of the easier judgement crackle of flaw detection personnel; Adopt and suppress circuit, simplify the flaw detection work difficulty, improve flaw detection personnel work efficiency.Its advanced technology, reasonable in design, the reliability height, volume is little, and is in light weight, is applicable to as the flaw detection of rail vehicles core wheel, the flaw detection of long steel rail welding line, bogie flaw detection, the flaw detection of various naval vessels body, petroleum and petrochemical industry pressure vessel in the detection with equipment.
The base display processing method can be avoided occurring leaking in the reality flaw detection hindering phenomenon when adopting binary channels, can alleviate flaw detection personnel's labour intensity, defectoscope cooperates transducer to adopt binary channels sampling, processing, display circuit, handle in the transducer two paths of signals in length and breadth simultaneously, and by screen prompt with send different audible alarms, visited workpiece with prompting flaw detection staff and whether had tired defective, and the relative position of prompting flaw detection personnel's crack defect and probe.The trend of the vertical, horizontal fatigue crack of left and right sides screen display correspondence; The height that alarming line is set by keyboard determines flaw detection sensitivity, and when waveform was no more than alarming line, the shown in green expression of waveform did not have the safety of wound; When waveform surpassed alarming line, waveform was shown as yellow, represented to transfinite danger.And the flaw detection of the auditory tone cues by different frequency staff is which passage has the signal of transfiniting.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in detail
Fig. 1 is a structural representation of the present utility model
Fig. 2 is the result of use figure of display screen
Number in the figure:
1, binary channels differential transformer 2, square-wave pulse transmitter 3, reception of impulse suppress circuit
4, controllable-gain circuit 5, detecting circuit 6, analog to digital conversion circuit
7, computing machine, printing, storer 8, interface circuit 9, microprocessor
10, supply voltage supervising device 11, keyboard control circuit 12, real-time clock
13, nonvolatile memory 14, controlling of sampling computing circuit 15, sampling memory
16, display control circuit 17, display-memory
18, electric pulse receives amplifier circuit unit 19, logic control computing circuit unit
20, micro-processor interface circuit unit 21, left screen 22, right screen
23, vertical passage waveform 24, interconnection waveform
Embodiment
Example
As shown in Figure 1, the utility model is by binary channels differential transformer 1, square-wave pulse transmitter 2, and electric pulse receives amplifier circuit unit 18, logic control computing circuit unit 19, micro-processor interface circuit unit 20 and computing machine, printing, memory 7 constitute.
Electric pulse receives amplifier circuit unit 18 and is composed in series by reception of impulse inhibition circuit 3, controllable-gain circuit 4, detecting circuit 5, analog to digital conversion circuit 6.Logic control computing circuit unit 19 is by controlling of sampling computing circuit unit 14 and connected sampling memory 15, display control circuit 16, display-memory 15 are formed respectively.Micro-processor interface circuit unit 20 is made up of microprocessor 9 and the interface circuit 8 that is attached thereto, supply voltage supervisory circuit 10, keyboard control circuit 11, real time clock circuit 12, nonvolatile memory 13.
Binary channels differential transformer 1, square-wave pulse transmitter 2 and electric pulse receive amplifier circuit unit 18 connect after, incorporate controlling of sampling computing circuit 14 into, insert microprocessor 9 again, microprocessor 9 is transported to computer output printing memory 7 by interface circuit 8.
Claims (1)
1. pulsed eddy current flaw detec, it is characterized in that: this defectoscope is by binary channels differential transformer (1), square-wave pulse transmitter (2), electric pulse receives amplifier circuit unit (18), logic control computing circuit unit (19), micro-processor interface circuit unit (20) and computing machine, printing, memory (7) constitute; Binary channels differential transformer (1), square-wave pulse radiating circuit unit (2) and electric pulse receive amplifier circuit unit (18) connect after, incorporate controlling of sampling computing circuit (14) into, insert microprocessor (9) again, microprocessor (9) is transported to computer output printing memory (7) by interface circuit (8); Electric pulse receives amplifier circuit unit (18) and is composed in series by reception of impulse inhibition circuit (3), controllable-gain circuit (4), detecting circuit (5), analog to digital conversion circuit (6); Logic control computing circuit unit (19) is by controlling of sampling computing circuit unit (14) and connected sampling memory (15), display control circuit (16), display-memory (15) are formed respectively; Micro-processor interface circuit unit (20) is made up of microprocessor (9) and the interface circuit (8) that is attached thereto, supply voltage supervisory circuit (10), keyboard control circuit (11), real time clock circuit (12), nonvolatile memory (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201005238U CN201666891U (en) | 2009-07-30 | 2009-07-30 | Impulse eddy detector of detects |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201005238U CN201666891U (en) | 2009-07-30 | 2009-07-30 | Impulse eddy detector of detects |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201666891U true CN201666891U (en) | 2010-12-08 |
Family
ID=43267850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201005238U Expired - Lifetime CN201666891U (en) | 2009-07-30 | 2009-07-30 | Impulse eddy detector of detects |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201666891U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107300586A (en) * | 2017-07-12 | 2017-10-27 | 辽宁红阳检测有限公司 | A kind of full information recording impulse eddy current flaw detec |
| CN111983015A (en) * | 2020-08-25 | 2020-11-24 | 成都盛锴科技有限公司 | Vehicle frame weld joint detection system and detection method |
-
2009
- 2009-07-30 CN CN2009201005238U patent/CN201666891U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107300586A (en) * | 2017-07-12 | 2017-10-27 | 辽宁红阳检测有限公司 | A kind of full information recording impulse eddy current flaw detec |
| CN111983015A (en) * | 2020-08-25 | 2020-11-24 | 成都盛锴科技有限公司 | Vehicle frame weld joint detection system and detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101208 |