CN103105430A - Micro alternating current magnet yoke flaw detector - Google Patents
Micro alternating current magnet yoke flaw detector Download PDFInfo
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- CN103105430A CN103105430A CN2011103551089A CN201110355108A CN103105430A CN 103105430 A CN103105430 A CN 103105430A CN 2011103551089 A CN2011103551089 A CN 2011103551089A CN 201110355108 A CN201110355108 A CN 201110355108A CN 103105430 A CN103105430 A CN 103105430A
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- probe
- yoke
- defectoscope
- flaw detector
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Abstract
The invention relates to a portable alternating current magnet yoke flaw detector. The micro alternating current magnet yoke flaw detector provided by the invention adopts a microprocessor to realize automatic recognition of probe type, and automatic working mode adjustment according to different probes. The micro alternating current magnet yoke flaw detector provided by the invention is applicable to probes of various types, such as a rotating magnetic field probe, a magnetic yoke type probe and a fillet weld probe, realizes one machine with multiple functions, employs aviation probe to suit high-risk environment, and is a magnetic particle flaw detector with design and production in line with the requirements of special industries.
Description
Technical field
The present invention relates to a kind of miniature magnetic powder flaw detector, especially relate to a kind of miniature interchange yoke defectoscope.
Background technology
Current, magnetic powder inspection method at home and abroad every field all is widely used, the ultimate principle that magnetic detects is: when ferrimagnet is magnetized in magnetic field, defective or the structural state variation on material surface and nearly surface can make local magnetoconductivity change, that is magnetic resistance increases, thereby makes the corresponding distorted of magnetic flux in magnetic circuit.Part magnetic flux directly passes through defective, and a part of magnetic flux is walked around defective at material internal, and some magnetic flux can leave material surface, walks around defective by air and reenters defective again, therefore forms stray field at material surface.In general, surface crack is darker, and the amplitude that leakage flux runs off material surface is higher, and is basically linear between them.At the stray field place, at formation the two poles of the earth (S, the N utmost point), defective both sides, if when spraying tiny ferromagnetic powder on this surface, place, surface leakage magnetic field can adsorb magnetic and form the magnetic trace due to magnetic line of force discrepancy material surface, demonstrate defect shape, this is the ultimate principle that magnetic detects.The D.C. magnetic field that domestic pressure container, pipeline inside and outside detecting instrument generally adopts the power supply of alternating current tape cable to produce, skin effect is poor, and detection sensitivity is low, and usable range is narrow, external circuits is dangerous, easily undetected.
miniature interchange yoke defectoscope, that the workpiece that utilizes yoke that ferrimagnet is made carries out magnetized light miniature magnetic particle inspection apparatus, can be to various part magnetization, be applicable to the oil field, shipbuilding, internal combustion engine part, the colliery, machinery, standard component, oil pump nozzle, aircraft manufacturing, auto parts, bridging, chemical industry, boilers and pressure vessel, the industry products such as railway, be applicable to because of forging and pressing, quench, welding, tired surface and the near surface flaw that causes that wait, as connecting rod, bent axle, bearing, high-strength bolt, spring, forging, the petrochemical industry pipe fitting, valve, blade, gear, roll, the flaw detection of the workpiece of the complex geometry such as anchor chain and weld seam.Miniature interchange yoke defectoscope is a kind of novel magnetic powder flaw detector that direct current is delivered stream, direct current supply, power supply is for exchanging the large capacity import lithium battery of output, be applicable to the execute-in-places such as open-air non-transformer execute-in-place and high-risk inaccessiable pressure vessel, bridge, pipeline, the stream time that once charges can reach more than 10 hours.AC charging, power acquisition is directly inputted with the 220V power supply, need not other instruments supporting, and is convenient and simple for operation, lightweight, be easy to carry, thereby this instrument is used widely.Can detect the defective on surface by producing high-intensity magnetic field.Dry powder, wet-milling, fluorescent powder, black particle all are applicable to this equipment.Because the design of this equipment strict waterproof in manufacture process, so it possesses good water proofing property, moisture resistance, and also the impact resistance performance is also very outstanding.According to duty, after a suitable yoke was installed, you can arbitrarily adjust spacing by adjusting the joint yoke of product, need simultaneously magnetic pole is rotated to suitable angle.As long as the workman can adjust angle as required, even complicated corner also can be detected.
Summary of the invention
Purpose of the present invention just is to provide a kind of easy to carry, safer, respond well miniature interchange yoke defectoscope, and purpose of the present invention can realize by following measures:
The present invention includes miniature interchange yoke defectoscope and be attached thereto the flaw detection probe that connects.Program controlled converter adopts microprocessor, realizes automatic identification probe type, automatically adjusts working method for the difference probe.Be applicable to the polytypic probes such as rotating magnetic field probe, yoke formula probe, fillet weld probe.Realize a tractor serves several purposes, adopt aso probe (P20), be applicable to multiple probe, design is produced and is met the magnaflux that special trade requires.
Miniature interchange yoke defectoscope of the present invention adopts lithium battery to make the energy, is transferred to the flaw detection probe after the processing such as inversion, frequency conversion, phase shift.Especially adopt lithium battery to make the energy, be transferred to the flaw detection probe after the processing such as inversion, frequency conversion, phase shift.Once charging can guarantee continuous working more than 10 hours, had made up the deficiency that the existing portable defectoscope in home market exists, and simple to operate, easy to carry, be widely used.
The present invention according to miniature interchange yoke defectoscope regulating power grade automatic according to battery voltage value, show that by automatic adjusting, liquid crystal digital working condition and battery undervoltage report to the police.This equipment in the course of the work can regulating power grade automatic according to battery voltage value, when the power grade of device automatic equipment can not be satisfied the demand, can by automatically regulate, liquid crystal digital shows working condition and battery undervoltage is reported to the police.
Miniature interchange yoke defectoscope of the present invention also comprises alarm.
Probe induction installation part of the present invention is utilized the contrary induction in magnetic field generation current, by the LED illuminating lamp, to completing testing process without the scene of illumination condition, has the characteristics such as flexible, convenient, fast.According to duty, probe induction installation of the present invention is after installing a suitable magnetic pole, can be by adjusting the middle joint yoke of product, arbitrarily adjust spacing, can rotate arbitrarily as required and adjust to suitable angle, even complicated corner also can be detected.
Miniature interchange yoke defectoscope of the present invention is transferred to magnetic, flaw detection probe after the processing such as inversion, frequency conversion, phase shift, the power supply of realization to checkout equipment, overcome that domestic existing portable, revolving-field type, yoke formula defectoscope adopt that the AC power skin effect is poor, detection sensitivity is low, usable range is little, poor safety performance, easy undetected defective, reach the water proof and dust proof standard.
Utilize miniature interchange yoke defectoscope of the present invention can assemble miniature yoke defectoscope, comprise two parts: the one, program controlled converter.Program controlled converter is to adopt the lithium battery group to make the energy, be transferred to the magnetic powder inspection probe after the processing such as inversion, frequency conversion, phase shift, be applicable to the polytypic probes such as rotating magnetic field probe, yoke formula probe, fillet weld probe, adopt as required the coil-induced to the power supply of probe LED illuminating lamp of probe during the supporting detection of particular surroundings.this device adopts microprocessor to realize automatic identification probe type, automatically adjust working method for the difference probe, realize a tractor serves several purposes, adopt aso probe (P20), be applicable to multiple probe, design is produced and is met the magnaflux that special industry requires, this equipment in the course of the work can regulating power grade automatic according to battery voltage value, when the power grade of device automatic equipment can not be satisfied with when needing, can be by automatically regulating, liquid crystal digital shows working condition and battery undervoltage warning, this device is by the test piece of the clear demonstration A type of energy, once charging can guarantee that continuous working is more than 10 hours, made up the deficiency that the existing portable defectoscope in home market exists, and simple to operate easy to carry, be widely used.The 2nd, the probe induction installation.Utilize the contrary induction in magnetic field generation current, by the LED illuminating lamp, to completing testing process without the scene of illumination condition, have the characteristics such as flexible, convenient, fast.Above-mentioned two parts form miniature magnetic powder flaw detector.The characteristics of product of the present invention are: 1. little, the lightweight environmental protection noiselessness of volume, non-maintaining, replaceable probe, convenient for maintaining; 2. provide under-voltage protection, for probe provides overcurrent, overvoltage short-circuit protection; 3. conversion efficiency reaches 90%, effectively high moment start-up performance; 4. power is high, continuous power steady, peak power output 500W; continuous output is 400W, has that overload, overvoltage, under-voltage, automatic protection warning, high pressure are protected automatically, excess temperature is protected automatically, short circuit is automatically protected and exchanged output holding circuit multi-protective function.
Description of drawings
Fig. 1 is the structural representation of miniature interchange yoke defectoscope.
Fig. 2 is the structural representation of probe induction installation.
Fig. 3 is the structural representation by miniature interchange yoke defectoscope and the miniature magnetic powder flaw detector that forms of probe induction installation.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.Should be understood that following examples are only for explanation the present invention but not for limiting scope of the present invention.
Embodiment
The miniature interchange yoke defectoscope of the present embodiment adopts battery to make the energy, is transferred to the flaw detection probe after the processing such as inversion, frequency conversion, phase shift.Especially adopt lithium battery to make the energy, be transferred to the flaw detection probe after the processing such as inversion, frequency conversion, phase shift.Once charging can guarantee continuous working more than 10 hours, had made up the deficiency that the existing portable defectoscope in home market exists, and simple to operate easy to carry, was widely used.Preferably, the program controlled converter of the present embodiment basis regulating power grade automatic according to battery voltage value shows working condition and battery undervoltage warning by automatic adjusting, liquid crystal digital.This equipment in the course of the work can regulating power grade automatic according to battery voltage value, when the power grade of device automatic equipment can not be satisfied with when needing, can by automatically regulate, liquid crystal digital shows working condition and battery undervoltage is reported to the police.Preferably, the miniature interchange yoke defectoscope of the present embodiment also comprises alarm.
The probe induction installation part of the present embodiment.Utilize the contrary induction in magnetic field generation current, by the LED illuminating lamp, to completing testing process without the scene of illumination condition, have the characteristics such as flexible, convenient, fast.According to the probe induction installation of duty the present embodiment, after installing a suitable magnetic pole, can arbitrarily adjust spacing by adjusting the middle magnetic sheet of product, may need magnetic pole is rotated to suitable angle.As long as the workman can adjust angle as required, in time complicated corner also can be detected.
The miniature interchange yoke defectoscope of the present embodiment is transferred to magnetic, flaw detection probe, realizes the power supply to checkout equipment after the processing such as inversion, frequency conversion, phase shift, overcome that domestic existing portable, revolving-field type yoke formula defectoscope adopts that the AC power skin effect is poor, detection sensitivity is low, usable range is little, poor safety performance, easy undetected defective, reach military water proof and dust proof standard.
Utilize the miniature interchange yoke defectoscope of the present embodiment can assemble miniature yoke defectoscope, comprise two parts: the one, program controlled converter.Program controlled converter is that the employing lithium battery is made the energy, is transferred to the magnetic powder inspection probe after the processing such as inversion, frequency conversion, phase shift, be applicable to the polytypic probes such as rotating magnetic field probe, yoke formula probe, fillet weld probe, adopt as required the coil-induced to the power supply of probe LED illuminating lamp of probe during the supporting detection of particular surroundings.this device adopts microprocessor to realize automatic identification probe type, automatically adjust working method for the difference probe, realize a tractor serves several purposes, adopt aso probe (P20), be applicable to multiple probe, design is produced and is met the magnaflux that special industry requires, this equipment in the course of the work can regulating power grade automatic according to battery voltage value, when the power grade of device automatic equipment can not be satisfied with when needing, can be by automatically regulating, liquid crystal digital shows working condition and battery undervoltage warning, this device is by the test piece of the clear demonstration A type of energy, once charging can guarantee that continuous working is more than 10 hours, made up the deficiency that the existing portable defectoscope in home market exists, and simple to operate easy to carry, be widely used.The 2nd, the probe induction installation.Utilize the contrary induction in magnetic field generation current, by the LED illuminating lamp, to completing testing process without the scene of illumination condition, have the characteristics such as flexible, convenient, fast.Above-mentioned two parts form miniature magnetic powder flaw detector.The characteristics of the present embodiment product are: 1. little, the lightweight environmental protection noiselessness of volume, non-maintaining, replaceable probe, convenient for maintaining; 2. provide under-voltage protection, for probe provides overcurrent, overvoltage short-circuit protection; 3. conversion efficiency reaches 90%, effectively high moment start-up performance; 4. power is high, continuous power steady, peak power output 500W; continuous output is 400W, has that overload, overvoltage, under-voltage, automatic protection warning, high pressure are protected automatically, excess temperature is protected automatically, short circuit is automatically protected and exchanged output holding circuit multi-protective function.
Be described further below in conjunction with accompanying drawing: the miniature interchange yoke defectoscope of the present embodiment comprises two parts: Fig. 1 is the structural representation of the present embodiment program controlled converter, and Fig. 2 is the structural representation of the present embodiment probe induction installation.Program controlled converter adopts microprocessor, realizes automatic identification probe type, automatically adjusts working method for the difference probe.Be applicable to the polytypic probes such as rotating magnetic field probe, yoke formula probe, fillet weld probe.Realize a tractor serves several purposes, adopt aso probe, be applicable to multiple probe, design is produced and is met the magnaflux that special trade requires.The program controlled converter of the present embodiment adopts battery to make the energy, is transferred to the flaw detection probe after the processing such as inversion, frequency conversion, phase shift.Especially adopt lithium battery to make the energy, be transferred to the flaw detection probe after the processing such as inversion, frequency conversion, phase shift.Once charging can guarantee continuous working more than 10 hours, had made up the deficiency that the existing portable yoke defectoscope in home market exists, and simple to operate easy to carry, was widely used.
The program controlled converter of the present embodiment basis regulating power grade automatic according to battery voltage value shows working condition and battery undervoltage warning by automatic adjusting, liquid crystal digital.This equipment in the course of the work can regulating power grade automatic according to battery voltage value, when the power grade of device automatic equipment can not be satisfied with when needing, can by automatically regulate, liquid crystal digital shows working condition and battery undervoltage is reported to the police.The probe induction installation part of the present embodiment.Utilize the contrary induction in magnetic field generation current, by the LED illuminating lamp, to completing testing process without the scene of illumination condition, have the characteristics such as flexible, convenient, fast.According to the probe induction installation of duty the present embodiment, after installing a suitable magnetic pole, can arbitrarily adjust spacing by adjusting the middle magnetic sheet of product, may need magnetic pole is rotated to suitable angle.As long as the workman can adjust angle as required, in time complicated corner also can be detected, as shown in Figure 3.
Claims (5)
1. a miniature interchange yoke defectoscope, is characterized in that: adopt microprocessor, realize automatic identification probe type, automatically adjust working method for the difference probe.
2. miniature interchange yoke defectoscope according to claim 1 is characterized in that: described defectoscope adopts the lithium battery group to make the energy, being transferred to flaw detection and popping one's head in after processing such as inversion, frequency conversion, phase shift.
3. miniature interchange yoke defectoscope according to claim 1 and 2 is characterized in that: the program controlled converter of described defectoscope regulating power grade automatic according to battery voltage value shows that by automatic adjusting, liquid crystal digital working condition and battery undervoltage report to the police.
4. miniature interchange yoke defectoscope according to claim 3, it is characterized in that: described program controlled converter also comprises liquid crystal digital display.
5. miniature interchange yoke defectoscope according to claim 4, it is characterized in that: described program controlled converter also comprises alarm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103551089A CN103105430A (en) | 2011-11-10 | 2011-11-10 | Micro alternating current magnet yoke flaw detector |
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| CN2011103551089A CN103105430A (en) | 2011-11-10 | 2011-11-10 | Micro alternating current magnet yoke flaw detector |
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| CN103105430A true CN103105430A (en) | 2013-05-15 |
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| CN2011103551089A Pending CN103105430A (en) | 2011-11-10 | 2011-11-10 | Micro alternating current magnet yoke flaw detector |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106525957A (en) * | 2015-09-15 | 2017-03-22 | 郝建国 | Wireless alternating-current electromagnetic yoke flaw detector |
| CN110763754A (en) * | 2019-10-18 | 2020-02-07 | 华电电力科学研究院有限公司 | Image type portable magnetic particle flaw detector and working method thereof |
| CN115841905A (en) * | 2023-01-19 | 2023-03-24 | 济宁鲁科检测器材有限公司 | Phase compensation method of non-90-degree crossed magnetic yoke and application thereof |
Citations (3)
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| US6316845B1 (en) * | 1999-11-05 | 2001-11-13 | Parker Research Corporation | Battery powered AC electromagnetic yoke for magnetic particle inspection |
| CN2784928Y (en) * | 2005-02-04 | 2006-05-31 | 河南科技大学 | Portable magnetic powder crack detector with illuminating equipment |
| CN101221149A (en) * | 2007-01-12 | 2008-07-16 | 郑州德隆检测设备有限公司 | Control software for intelligent magnetic particle flaw detector |
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2011
- 2011-11-10 CN CN2011103551089A patent/CN103105430A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6316845B1 (en) * | 1999-11-05 | 2001-11-13 | Parker Research Corporation | Battery powered AC electromagnetic yoke for magnetic particle inspection |
| CN2784928Y (en) * | 2005-02-04 | 2006-05-31 | 河南科技大学 | Portable magnetic powder crack detector with illuminating equipment |
| CN101221149A (en) * | 2007-01-12 | 2008-07-16 | 郑州德隆检测设备有限公司 | Control software for intelligent magnetic particle flaw detector |
Non-Patent Citations (2)
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| 杨洁: "充电式智能磁粉探伤机的研制", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》 * |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106525957A (en) * | 2015-09-15 | 2017-03-22 | 郝建国 | Wireless alternating-current electromagnetic yoke flaw detector |
| CN110763754A (en) * | 2019-10-18 | 2020-02-07 | 华电电力科学研究院有限公司 | Image type portable magnetic particle flaw detector and working method thereof |
| CN115841905A (en) * | 2023-01-19 | 2023-03-24 | 济宁鲁科检测器材有限公司 | Phase compensation method of non-90-degree crossed magnetic yoke and application thereof |
| CN115841905B (en) * | 2023-01-19 | 2023-11-21 | 济宁鲁科检测器材有限公司 | Phase compensation method of non-90-degree crossed magnetic yoke and application thereof |
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Application publication date: 20130515 |