CN205861255U - Ferromagnetic material stress based on barkhausen detection device - Google Patents
Ferromagnetic material stress based on barkhausen detection device Download PDFInfo
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- CN205861255U CN205861255U CN201620857439.0U CN201620857439U CN205861255U CN 205861255 U CN205861255 U CN 205861255U CN 201620857439 U CN201620857439 U CN 201620857439U CN 205861255 U CN205861255 U CN 205861255U
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Abstract
This utility model provides a kind of ferromagnetic material stress based on barkhausen detection device, and this device includes wave generator circuit, Barkhausen noise sensor, preamplifier, one-level band filter, main amplifier, two grades of band filters, secondary amplifier, A/D converter, STM32 control module and LCD display；Barkhausen noise sensor includes the U-shaped skeleton of excitation coil, ferrite yoke, sensor coil, drum skeleton and bar magnet；Excitation coil is around in the middle part of the U-shaped skeleton of ferrite yoke；Bar magnet is embedded in drum skeleton；Sensor coil is fixed at the center position of the U-shaped skeleton of ferrite yoke, is around in the middle part of drum skeleton.Barkhausen stress detection device of the present utility model can carry out Non-Destructive Testing to ferromagnetic material workpiece the most exactly.
Description
Technical field
This utility model relates to stress detection, particularly relates to a kind of ferromagnetic material stress based on barkhausen
Detection device.
Background technology
Part, during processing and manufacturing, is subject to the effect from various processing technique and impact, machines, part institute
The above-mentioned effect being subject to can not entirely with disappear, and the active force remained in part is residual stress.Part after processing
Internal residual stress will affect the mechanical performances such as the corrosion and fatigue intensity of ferromagnetic material, makes part be deformed, the work such as cracking
Skill defect, has had a strong impact on the service life of part, even results in part and cannot use at all.Therefore, the remnants of part are detected
Stress plays vital effect to the outgoing ensureing part.
Traditional residual stress test method substantially has Blind Hole Method, sandblasting punch method, patterning method etc., and above method has it
Shortcoming, must destroy part during detection, can only detect for certain point on workpiece, and testing result is the most accurate, only
Can be used for inspecting by random samples, it is impossible to the strict outgoing controlling part；X-ray method used by current each factory is the most expensive, and because penetrating
The degree of depth is limited need to carry out destructive detection to part；External import magnetic bullet instrument price and costliness thereof, it is difficult to buy and use.Bark person of outstanding talent
Gloomy effect method is a kind of Non-Destructive Testing new technique of rising in recent years, and stress detection device based on barkhausen eliminates
The impact of disadvantage mentioned above, can carry out Non-Destructive Testing one by one to part the most rapidly and accurately.
Barkhausen (The Barkhausen effect) be Germany scientist Barkhausen in 1919 first
Find, by studying for many years, develop into now a Dynamic Non-Destruction Measurement.Dynamic Non-Destruction Measurement based on this effect is profit
With the Magnetic Barkhausen noise signal (Magnetic caused by the exception of material internal structure or the existence of defect
Barkhausen noise, is called for short MBN) change, come that decision structure is abnormal and the extent of injury of defect.This technology is mainly used in
Evaluate the quality of ferromagnetic material and fatigue conditions, have lossless, accurate, reliably, fast and automatically, can penetrate coating, can carry out big
The advantages such as area detecting, and environmental protection, do not injure human body, machine-building, metallurgy, building, aeronautics and space, nuclear energy,
The industries such as traffic, and the field such as geological prospecting, safety detection, material science has significant application value, base the most in recent years
Dynamic Non-Destruction Measurement in barkhausen enjoys domestic and international research worker to pay close attention to.
But, tradition stress mornitoring method, when for stress mornitoring, remains in the inaccurate problem of testing result.
Utility model content
Given below about brief overview of the present utility model, in order to provide about some side of the present utility model
The basic comprehension in face.Should be appreciated that this general introduction is not to summarize about exhaustive of the present utility model.It is not intended to really
Fixed key of the present utility model or pith, be not intended limitation scope of the present utility model.Its purpose is only with letter
The form changed provides some concept, in this, as the preamble in greater detail discussed after a while.
In consideration of it, this utility model provides a kind of ferromagnetic material stress based on barkhausen detection device, with
At least solve the inaccurate problem of testing result that tradition stress mornitoring method is existing when for stress mornitoring.
According to an aspect of the present utility model, it is provided that a kind of ferromagnetic material stress based on barkhausen detects
Device, described ferromagnetic material stress detection device include wave generator circuit, Barkhausen noise sensor, preamplifier,
One-level band filter, main amplifier, two grades of band filters, secondary amplifier, A/D converter, STM32 control module and
LCD display；Described Barkhausen noise sensor includes the U-shaped skeleton of excitation coil, ferrite yoke, sensor coil, drum
Skeleton and bar magnet；Described excitation coil is around in the middle part of the U-shaped skeleton of described ferrite yoke；Described bar magnet is embedded in institute
State in drum skeleton；Described sensor coil is fixed at the center position of the U-shaped skeleton of described ferrite yoke, is around in described work
The middle part of type skeleton；Described excitation coil connects the signal input part of described Barkhausen noise sensor, described sensing
Coil connects the signal output part of described Barkhausen noise sensor；Wherein, the signal output part of described wave generator circuit
Connecting the signal input part of described Barkhausen noise sensor, the signal output part of described Barkhausen noise sensor connects
The signal input part of described preamplifier, the signal output part of described preamplifier connects described one-level band filter
Signal input part, the signal output part of described one-level band filter connects the signal input part of described main amplifier, described master
The signal output part of amplifier connects the signal input part of described two grades of band filters, the signal of described two grades of band filters
Outfan connects the signal input part of described secondary amplifier, and the signal output part of described secondary amplifier connects described A/D and turns
The signal input part of parallel operation, the signal output part of described A/D converter connects the signal input part of described STM32 control module,
The signal output part of described STM32 control module connects the signal input part of described LCD display.
Further, described wave generator circuit includes sine-wave generator and power amplifier；Described sinusoidal wave generation
The signal output part of device connects the signal input part of described power amplifier, and the signal output part of described power amplifier connects institute
State the signal input part of Barkhausen noise sensor.
Further, the coiling of described excitation coil and the coiling of described sensor coil all use copper core enamel-covered wire, described
The material of the U-shaped skeleton of ferrite yoke is ZnMn oxysome, and the material of described drum skeleton is plastics.
By above description, ferromagnetic material stress based on barkhausen of the present utility model detection device can
Realize the lossless continuous detecting of part, Real-time Collection Barkhausen noise signal, treated enters at computer in digital form
Row display.Under general environment (humiture relative constancy), it is possible to be accurately finished the stress mornitoring of ferromagnetic material workpiece continuously.
This utility model eliminates the impact of tradition stress detection shortcoming, detection part can be carried out the most lossless inspection
Surveying, can penetrate coating, testing result is more accurate, tighter ensure that the quality of part.This utility model can carry effectively
The technological level of high processing part and equipment automatization level, to ensureing that properties of product, quality have vital with precision
Effect, promotes the development of China's stress Dynamic Non-Destruction Measurement.
In this utility model, Barkhausen noise signal is being carried out preposition amplification and one-level filter and amplification (i.e. passes through
Preamplifier 103, one-level band filter 104, main amplifier 105) on the basis of, also it is carried out secondary filter amplification
(i.e. by two grades of band filters 106, secondary amplifier 107) so that the biography after preposition amplification and secondary filter are amplified
Sense signal can be accurately detected, compared to only passing through preposition amplification and the scheme of one-level filter and amplification, testing result
More accurate, precision is higher.
By below in conjunction with the accompanying drawing detailed description to most preferred embodiment of the present utility model, of the present utility model these with
And other advantages will be apparent from.
Accompanying drawing explanation
This utility model can be by with reference to being better understood, wherein below in association with the description given by accompanying drawing
Employ same or analogous reference in all of the figs to represent same or like parts.Described accompanying drawing together with under
The detailed description in face comprises in this manual and is formed the part of this specification together, and is used for illustrating further
Bright preferred embodiment of the present utility model and explanation principle and advantage of the present utility model.In the accompanying drawings:
Fig. 1 is to schematically show ferromagnetic material stress based on barkhausen of the present utility model detection device
The structure chart of one example；
Fig. 2 is the block diagram of a kind of possible structure schematically showing the wave generator circuit shown in Fig. 1.
It will be appreciated by those skilled in the art that the element in accompanying drawing be only used to simple and clear for the sake of and illustrate,
And be not necessarily drawn to scale.Such as, in accompanying drawing, the size of some element may be exaggerated relative to other elements, with
Just the understanding to this utility model embodiment it is favorably improved.
Detailed description of the invention
Hereinafter in connection with accompanying drawing, one exemplary embodiment of the present utility model is described.Rise for clarity and conciseness
See, the most do not describe all features of actual embodiment.It should be understood, however, that developing any this reality
Must make during embodiment much specific to the decision of embodiment, in order to realize the objectives of developer, example
As, meet those restrictive conditions relevant to system and business, and these restrictive conditions may along with embodiment not
Change together.Additionally, it also should be appreciated that, although development is likely to be extremely complex and time-consuming, but to having benefited from
For those skilled in the art of present disclosure, this development is only routine task.
Here, also need to explanation a bit, in order to avoid having obscured this utility model because of unnecessary details, attached
Figure illustrate only and according to the closely-related apparatus structure of scheme of the present utility model and/or process step, and eliminate
Other details little with this utility model relation.
Embodiment of the present utility model provides a kind of ferromagnetic material stress based on barkhausen detection device, ferrum
Magnetic material stress detection device includes wave generator circuit, Barkhausen noise sensor, preamplifier, one-level bandpass filtering
Device, main amplifier, two grades of band filters, secondary amplifier, A/D converter, STM32 control module and LCD display；Bar
Ke Haosen noise transducer includes the U-shaped skeleton of excitation coil, ferrite yoke, sensor coil, drum skeleton and bar magnet；Excitation
Coil is around in the middle part of the U-shaped skeleton of ferrite yoke；Bar magnet is embedded in drum skeleton；Sensor coil is fixed at ferrum oxygen
The center position of the U-shaped skeleton of body yoke, is around in the middle part of drum skeleton；Excitation coil connects Barkhausen noise sensing
The signal input part of device, sensor coil connects the signal output part of Barkhausen noise sensor；Wherein, wave generator circuit
Signal output part connects the signal input part of Barkhausen noise sensor, and the signal output part of Barkhausen noise sensor is even
Connecing the signal input part of preamplifier, the signal output part of preamplifier connects the signal input of one-level band filter
End, the signal output part of one-level band filter connects the signal input part of main amplifier, and the signal output part of main amplifier is even
Connecing the signal input part of two grades of band filters, the signal that the signal output part of two grades of band filters connects secondary amplifier is defeated
Entering end, the signal output part of secondary amplifier connects the signal input part of A/D converter, and the signal output part of A/D converter is even
Connecing the signal input part of STM32 control module, the signal output part of STM32 control module connects the signal input of LCD display
End.
Fig. 1 shows of ferromagnetic material stress based on barkhausen of the present utility model detection device 100
Example arrangement.As it is shown in figure 1, ferromagnetic material stress detection device 100 includes wave generator circuit 101, Barkhausen noise
Sensor 102, preamplifier 103, one-level band filter 104,105, two grades of band filters 106 of main amplifier, secondary
Amplifier 107, A/D converter 108, STM32 control module 109 and LCD display 110.
Wherein, Barkhausen noise sensor 102 includes excitation coil 102-1, ferrite yoke U-shaped skeleton 102-2, biography
Sense coil 102-3, drum skeleton 102-4 and bar magnet 102-5.
Excitation coil 102-1 is around in the middle part of ferrite yoke U-shaped skeleton 102-2, and bar magnet 102-5 is embedded in drum
In skeleton 102-4.Sensor coil 102-3 is fixed at the center position of ferrite yoke U-shaped skeleton 102-2, and is around in
The middle part of drum skeleton 102-4.
Excitation coil 102-1 connects the signal input part of Barkhausen noise sensor 102, and sensor coil 102-1 is even
Connect the signal output part of Barkhausen noise sensor 102.
The signal output part of wave generator circuit 101 connects the signal input part of Barkhausen noise sensor 102, Bark
The signal output part of the gloomy noise transducer 102 of person of outstanding talent connects the signal input part of preamplifier 103, the letter of preamplifier 103
Number outfan connects the signal input part of one-level band filter 104, and the signal output part of one-level band filter 104 connects main
The signal input part of amplifier 105, the signal output part of main amplifier 105 connects the signal input of two grades of band filters 106
End, the signal output part of two grades of band filters 106 connects the signal input part of secondary amplifier 107, secondary amplifier 107
Signal output part connects the signal input part of A/D converter 108, and the signal output part of A/D converter 108 connects STM32 and controls
The signal input part of module 109, the signal output part of STM32 control module 109 connects the signal input part of LCD display 110.
Further, as in figure 2 it is shown, wave generator circuit 101 can include sine-wave generator 201 and power amplifier
202, the signal output part of sine-wave generator 201 connects the signal input part of power amplifier 202.Power amplifier 202
Signal output part is used as the signal output part of wave generator circuit 101, and is used for and the Barkhausen noise sensor shown in Fig. 1
The signal input part of 102 connects.
Power amplifier 202 is sent to Barkhausen after the small-signal that sine-wave generator 201 produces being amplified and makes an uproar
The excitation coil 102-1 of sonic transducer, excitation coil 102-1 produce alternating magnetic field, pass through ferrite yoke U-shaped skeleton 102-2
Leading, magnetization measured workpiece (i.e. ferromagnetic material shown in Fig. 1), measured workpiece is excited backward emission magnetoelastic wave, sensor coil
The field signal received is converted into faint analog electrical signal by 102-3, amplified and to choose signal by wave filter the richest
Rich section input A/D conversion, is transported to STM32 control module 109 by the digital signal of acquisition and processes, should by finally obtain
Power numerical value shows by LCD display 110.
Further, the coiling of excitation coil 102-1 and the coiling of sensor coil 102-3 all can use copper core enamel-cover
Line, the material of ferrite yoke U-shaped skeleton 102-2 can be ZnMn oxysome, and the material of drum skeleton 102-4 can be to mould
Material.
By above description, ferromagnetic material stress based on barkhausen of the present utility model detection device can
Realize the lossless continuous detecting of part, Real-time Collection Barkhausen noise signal, treated enters at computer in digital form
Row display.Under general environment (humiture relative constancy), it is possible to be accurately finished the stress mornitoring of ferromagnetic material workpiece continuously.
This utility model eliminates the impact of tradition stress detection shortcoming, detection part can be carried out the most lossless inspection
Surveying, can penetrate coating, testing result is more accurate, tighter ensure that the quality of part.This utility model can carry effectively
The technological level of high processing part and equipment automatization level, to ensureing that properties of product, quality have vital with precision
Effect, promotes the development of China's stress Dynamic Non-Destruction Measurement.
In this utility model, Barkhausen noise signal is being carried out preposition amplification and one-level filter and amplification (i.e. passes through
Preamplifier 103, one-level band filter 104, main amplifier 105) on the basis of, also it is carried out secondary filter amplification
(i.e. by two grades of band filters 106, secondary amplifier 107) so that the biography after preposition amplification and secondary filter are amplified
Sense signal can be accurately detected, compared to only passing through preposition amplification and the scheme of one-level filter and amplification, testing result
More accurate, precision is higher.
Although the embodiment according to limited quantity describes this utility model, but benefits from above description, this technology
Skilled person understands, in the range of this utility model thus described, it can be envisaged that other embodiments.Additionally,
It should be noted that, the language used in this specification primarily to the readable and purpose of teaching and select rather than in order to
Explain or limit theme of the present utility model and select.Therefore, without departing from the scope of the appended claims and spirit
In the case of, many modifications and changes will be apparent from for those skilled in the art.For this
The scope of utility model, the disclosure being done this utility model is illustrative and not restrictive, scope of the present utility model
It is defined by the appended claims.
Claims (3)
1. ferromagnetic material stress based on barkhausen detection device, it is characterised in that described ferromagnetic material stress detects
Device include wave generator circuit, Barkhausen noise sensor, preamplifier, one-level band filter, main amplifier, two
Level band filter, secondary amplifier, A/D converter, STM32 control module and LCD display；
Described Barkhausen noise sensor include the U-shaped skeleton of excitation coil, ferrite yoke, sensor coil, drum skeleton with
And bar magnet；Described excitation coil is around in the middle part of the U-shaped skeleton of described ferrite yoke；Described bar magnet is embedded in described drum
In skeleton；Described sensor coil is fixed at the center position of the U-shaped skeleton of described ferrite yoke, is around in described drum skeleton
Middle part；Described excitation coil connects the signal input part of described Barkhausen noise sensor, and described sensor coil is even
Connect the signal output part of described Barkhausen noise sensor；
Wherein, the signal output part of described wave generator circuit connects the signal input part of described Barkhausen noise sensor,
The signal output part of described Barkhausen noise sensor connects the signal input part of described preamplifier, described preposition amplification
The signal output part of device connects the signal input part of described one-level band filter, the signal output of described one-level band filter
End connects the signal input part of described main amplifier, and the signal output part of described main amplifier connects described two grades of band filters
Signal input part, the signal output part of described two grades of band filters connects the signal input part of described secondary amplifier, institute
The signal output part stating secondary amplifier connects the signal input part of described A/D converter, the signal output of described A/D converter
End connects the signal input part of described STM32 control module, and the signal output part of described STM32 control module connects described LCD
The signal input part of display.
Ferromagnetic material stress the most according to claim 1 detection device, it is characterised in that described wave generator circuit includes
Sine-wave generator and power amplifier；The signal output part of described sine-wave generator connects the signal of described power amplifier
Input, the signal output part of described power amplifier connects the signal input part of described Barkhausen noise sensor.
Ferromagnetic material stress the most according to claim 1 and 2 detection device, it is characterised in that described excitation coil around
The coiling of line and described sensor coil all uses copper core enamel-covered wire, the material of the U-shaped skeleton of described ferrite yoke to be ZnMn oxidation
Body, the material of described drum skeleton is plastics.
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| CN201620857439.0U CN205861255U (en) | 2016-08-09 | 2016-08-09 | Ferromagnetic material stress based on barkhausen detection device |
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| CN201620857439.0U CN205861255U (en) | 2016-08-09 | 2016-08-09 | Ferromagnetic material stress based on barkhausen detection device |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107576722A (en) * | 2017-08-30 | 2018-01-12 | 哈尔滨理工大学 | A kind of ferromagnetic material grinding burn detection method based on barkhausen |
| CN110208363A (en) * | 2019-06-19 | 2019-09-06 | 哈尔滨工业大学（深圳） | A kind of bearing carrier fatigue detection device and method |
| CN111060241A (en) * | 2019-12-02 | 2020-04-24 | 天津大学 | Torque detection system and method based on magnetic Barkhausen effect |
| CN111207868A (en) * | 2020-01-19 | 2020-05-29 | 山东大学 | Automatic plane residual stress detection device and method based on magnetoelastic effect |
| CN111289606A (en) * | 2020-03-31 | 2020-06-16 | 西安工程大学 | Magnetic force effect stress detection system and method based on existing magnetism of structural steel |
| CN111380948A (en) * | 2020-03-30 | 2020-07-07 | 北京工业大学 | Calibration method for relationship between magnetic Barkhausen noise and continuous tension and compression stress |
| CN111964817A (en) * | 2020-07-08 | 2020-11-20 | 中国特种设备检测研究院 | Plane stress determination method and device based on magnetic Barkhausen noise |
| CN112067173A (en) * | 2020-09-29 | 2020-12-11 | 刘翡琼 | Spiral pressure detector |
| CN112945427A (en) * | 2021-02-04 | 2021-06-11 | 思特尔智能检测系统(苏州)有限公司 | Method for measuring two-dimensional stress at welding seam by utilizing Barkhausen effect and detection instrument |
| CN115031876A (en) * | 2022-05-10 | 2022-09-09 | 南京工业大学 | Square wave excitation-based Barkhausen effect stress detection method |
| CN117740204A (en) * | 2024-02-20 | 2024-03-22 | 沈阳仪表科学研究院有限公司 | Multidirectional stress detection sensor and detection method |
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2016
- 2016-08-09 CN CN201620857439.0U patent/CN205861255U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107576722A (en) * | 2017-08-30 | 2018-01-12 | 哈尔滨理工大学 | A kind of ferromagnetic material grinding burn detection method based on barkhausen |
| CN110208363A (en) * | 2019-06-19 | 2019-09-06 | 哈尔滨工业大学（深圳） | A kind of bearing carrier fatigue detection device and method |
| CN111060241A (en) * | 2019-12-02 | 2020-04-24 | 天津大学 | Torque detection system and method based on magnetic Barkhausen effect |
| CN111207868A (en) * | 2020-01-19 | 2020-05-29 | 山东大学 | Automatic plane residual stress detection device and method based on magnetoelastic effect |
| CN111380948A (en) * | 2020-03-30 | 2020-07-07 | 北京工业大学 | Calibration method for relationship between magnetic Barkhausen noise and continuous tension and compression stress |
| CN111289606B (en) * | 2020-03-31 | 2023-06-02 | 西安工程大学 | Magnetic force effect stress detection system and method based on existing magnetism of structural steel |
| CN111289606A (en) * | 2020-03-31 | 2020-06-16 | 西安工程大学 | Magnetic force effect stress detection system and method based on existing magnetism of structural steel |
| CN111964817A (en) * | 2020-07-08 | 2020-11-20 | 中国特种设备检测研究院 | Plane stress determination method and device based on magnetic Barkhausen noise |
| CN111964817B (en) * | 2020-07-08 | 2022-04-29 | 中国特种设备检测研究院 | Plane stress determination method and device based on magnetic Barkhausen noise |
| CN112067173A (en) * | 2020-09-29 | 2020-12-11 | 刘翡琼 | Spiral pressure detector |
| CN112945427A (en) * | 2021-02-04 | 2021-06-11 | 思特尔智能检测系统(苏州)有限公司 | Method for measuring two-dimensional stress at welding seam by utilizing Barkhausen effect and detection instrument |
| CN115031876A (en) * | 2022-05-10 | 2022-09-09 | 南京工业大学 | Square wave excitation-based Barkhausen effect stress detection method |
| CN117740204A (en) * | 2024-02-20 | 2024-03-22 | 沈阳仪表科学研究院有限公司 | Multidirectional stress detection sensor and detection method |
| CN117740204B (en) * | 2024-02-20 | 2024-05-03 | 沈阳仪表科学研究院有限公司 | Multidirectional stress detection sensor and detection method |
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