CN206330934U - A kind of metal class special equipment damage detection system being vortexed based on low frequency - Google Patents
A kind of metal class special equipment damage detection system being vortexed based on low frequency Download PDFInfo
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- CN206330934U CN206330934U CN201621231865.XU CN201621231865U CN206330934U CN 206330934 U CN206330934 U CN 206330934U CN 201621231865 U CN201621231865 U CN 201621231865U CN 206330934 U CN206330934 U CN 206330934U
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- low frequency
- special equipment
- detection system
- class special
- metal class
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Abstract
A kind of metal class special equipment damage detection system being vortexed based on low frequency, it is characterised in that：It is made up of and advance rolling wheel support (9) telescoping handle (1), handle connecting device (2), direction roller (3), advance roller (4), detection probe (5), scanning case (6), support (7), electronic module (8)；Telescoping handle (1) is connected by handle connecting device (2) with scanning case (6), direction roller (3) is connected to below handle connecting device (2), probe (5) is located at scanning case (6) bottom centre position, electronic module (8) is connected to the oblique upper of scanning case (6) by support (7), and advance roller (4) is connected in front of scanning case (6) by advance rolling wheel support (9).The utility model has the simple, convenient place that carries, the characteristics of sensitivity is high, can be not easily accessible to using the big instrument such as below the corner of measurement metal class special equipment, pipe.
Description
Technical field
The utility model provides a kind of metal class special equipment damage detection system being vortexed based on low frequency, belongs to electromagnetism
Detection technique field.
Background technology
To these damages of bearing device and its detection of the defect caused, existing lossless detection method such as ray, ultrasound, magnetic
There is respective deficiency in terms of powder and infiltration etc., the high and low temperature environment, equipment surface situation at the scene that adapts to, such as：1) need
Good coupling is carried out with metal body, so that ultrasonic wave can realize propagation between sensor and metal body and connect
Receive.2) generally be directed to the measurement of certain point wall thickness, it is not suitable for the scanning detection of large area, therefore detection speed is very slow.
Low frequency EDDY CURRENT is also known as low frequency electromagnetic, is that, using discrete excitation and reception cell winding, excitation coil exists
One alternating electromagnetic field of generation is excited under lower frequency (generally 1Hz-100Hz), and penetrates measured material, by observing electromagnetism
The change in signal strength situation produced detects defect.Eddy detection technology is based on electromagnetic theory, when being loaded with electric current
Test coil close to conductor workpiece when, the alternating magnetic field produced by coil can produce induced-current in the conductor, that is, produce whirlpool
Stream.Size, phase and the liquid form of vortex defect are occurred by workpiece performance and surface or near surface to be influenceed, the anti-work of vortex
The change of coil voltage and impedance will be caused again with magnetic field.The change of voltage or impedance in coil is detected by instrument, you can
The presence of defect in effective detecting conductor.Eddy detection technology is that since 1950, conventional vortex is usually 1KHz-
500KHz, is influenceed by Kelvin effect, and the penetration depth of EDDY CURRENT is limited significantly, therefore EDDY CURRENT is often long for gold
Metal surface and near surface detection.Low frequency electromagnetic overcomes the influence of Kelvin effect by reducing frequency, effectively improves detection depth 30
More than times.
Based on above-mentioned background, research and development one kind can be not high to surface requirements, it is therefore desirable to has the quick, light of certain lift-off, spirit
The of a relatively high lossless detection method of sensitivity is the emphasis of current research, is conducive to preferably preventing the failure of special equipment.
Utility model content
The purpose of this utility model is to provide a kind of metal class special equipment damage detection system being vortexed based on low frequency.
The utility model, which has, to be easy to carry, and simple in construction, it is easy to operate, susceptibility is high, can apply to measurement metal class special type and sets
The place that big instrument is not easily accessible to below standby corner, pipe etc..
The technical solution of the utility model is：
A kind of described metal class special equipment damage detection system being vortexed based on low frequency, it is characterised in that：By stretching
Handle (1), handle connecting device (2), direction roller (3), advance roller (4), probe (5), scanning case (6), support (7),
Electronic module (8) and advance rolling wheel support (9) composition；Telescoping handle (1) passes through handle connecting device (2) and scanning case (6) phase
Even, direction roller (3) is connected to below handle connecting device (2), and probe (5) is located at scanning case (6) bottom centre position, electricity
Submodule (8) is connected to the oblique upper of scanning case (6) by support (7), and advance roller (4) is connected by advance rolling wheel support (9)
It is connected in front of scanning case (6).
A kind of described metal class special equipment damage detection system being vortexed based on low frequency, it is characterised in that：Flexible hand
Handle (1) can shrink and be folded by handle connecting device (2).
A kind of described metal class special equipment damage detection system being vortexed based on low frequency, it is characterised in that：Electronic die
Block (8) is made up of display module (81), power module (82), data acquisition and defect recognition module (83), data acquisition and lack
Falling into identification module (83) includes main control chip (831), power amplifier (832) and signal processing module (833), display module
(81) it is made up of LCDs (811) and buzzer (812).
A kind of described metal class special equipment damage detection system being vortexed based on low frequency, it is characterised in that：Probe
(5) it is made up of hall effect sensor (51), excitation coil (52), main control chip (831) produces a Low Frequency Sine Signals (1-
100Hz), after power amplifier (832) amplification, signal produces magnetic field afterwards by excitation coil (52), and defect can make magnetic field
Change, hall effect sensor (51) can induce the change in this magnetic field and by signal processing module (833) in liquid
Crystal display screen (811) is shown.
The beneficial effects of the utility model are：
1. the utility model does not need permanent-magnet-field, weight of equipment and manipulation strength are alleviated, it is position that can recognize defect
In the bottom or top of tested test specimen, accuracy of detection is improved, and it is low to tested surface requirements.
2. the utility model has speed fast, without coupling a little, and can be real by Eddy current sensor array
Existing magnetography.
3. the utility model is easy to carry, simple in construction, it is easy to operate, susceptibility is high.
4. the utility model can apply to measure the corner of metal class special equipment, big instrument is not easy below pipe etc.
The place of arrival.
Brief description of the drawings
Fig. 1 is a kind of metal class special equipment damage detection system overall schematic based on low frequency electromagnetic；
Fig. 2 is a kind of electronic module block diagram for the metal class special equipment damage detection system being vortexed based on low frequency；
Fig. 3 is a kind of probe schematic diagram for the metal class special equipment damage detection system being vortexed based on low frequency.
Embodiment
Below in conjunction with the accompanying drawings and embodiment is further described to the utility model：
Referring to accompanying drawing 1, a kind of metal class special equipment damage detection system being vortexed based on low frequency, it is characterised in that：By
Telescoping handle (1), handle connecting device (2), direction roller (3), advance roller (4), probe (5), scanning case (6), support
(7) constituted with electronic module (8)；Telescoping handle (1) is connected by handle connecting device (2) with scanning case (6), direction roller
(3) it is connected to below handle connecting device (2), probe (5) is located at scanning case (6) bottom centre position, electronic module (8) leads to
The oblique upper that support (7) is connected to scanning case (6) is crossed, advance roller (4) is connected to scanning case by advance rolling wheel support (9)
(6) front.Telescoping handle (1) can shrink and be folded by handle connecting device (2).
Fig. 2 show a kind of frame of the electronic module for the metal class special equipment damage detection system being vortexed based on low frequency
Figure, as illustrated, electronic module (8) is by power module (81), data acquisition and defect recognition module (83) and display module
(82).Power module (81) is depressured chip from 7805, by 12V DC voltage conversion into direct current 5V voltages, for other
Module for power supply, while providing alarm signal when cell voltage is too low.Data acquisition and the master control core of defect recognition module (83)
Piece (831) selects STM32F103ZET6, main to complete the collection to magnetic field data and the identification to defect and quantization function,
And the processing function of human-machine interactive information, it is the nucleus module of detecting system.Main control chip (831) by the data collected with
Normal data compares, to judge defect whether there is.And the order of magnitude of the difference of gathered data and normal data, defect can be reacted
Depth.By detecting that data are compared with a series of drawbacks of the standard data corresponding to different depth, you can realize defect level
Change.Drawbacks of the standard data are that, in equipment calibration, scanning standard defect is collected one by one on standard test plate (panel), and these data are deposited
Storage before detection starts every time, is set by the user base plate to be measured first in the flash memory (8311) of main control chip (831)
Thickness value and depth of defect alarm threshold value, then by main control chip (831) search flash memories (8311) inner pair stored
Answer the threshold data of thickness of slab.Start after detection, the data of each circle collection probe (5), gather after certain number of times, you can
Into probe (5), the peak-to-peak value of each hall effect sensor (51), these peak-to-peak values are compared with drawbacks of the standard data
Compared with, with judge the probe correspondence scanning area defect whether there is.If it find that defect, is put into defect alarm condition, buzzer
(812) ring and by LCDs (811) is come the position of display defect and the width and each hall effect sensor of defect
(51) depth information of the defect detected by.
Fig. 3 show a kind of probe (5) signal of metal class special equipment damage detection system being vortexed based on low frequency
Figure, as illustrated, probe (5) is by hall effect sensor (51), excitation coil (52), support (53) and yoke (54) group
Into.Hall effect sensor (51) selects UGN3503, constitutes an array, is placed on support (53), and excitation coil (52) is used
U-shaped manganese-zinc ferrite makees magnetic core, is made up of two coils, and coil is a diameter of 0.3-0.7mm enamel-covered wires, and the number of turn is left in 50 circles
The right side, is wrapped in yoke (54).Main control chip (831) produces a Low Frequency Sine Signals, and frequency is 1-100Hz, through overpower
After amplifier (832) amplification, signal produces magnetic field afterwards by excitation coil (52), and defect can make magnetic field change, Hall effect
Inductive sensing device (51) can induce the change in this magnetic field and signal is communicated by IIC by signal processing module (833) and pass
Main control chip (831) is given, is shown in LCDs (811).
Claims (4)
1. a kind of metal class special equipment damage detection system being vortexed based on low frequency, it is characterised in that：By telescoping handle (1),
Handle connecting device (2), direction roller (3), advance roller (4), probe (5), scanning case (6), support (7), electronic module
(8) constituted with advance rolling wheel support (9)；Telescoping handle (1) is connected by handle connecting device (2) with scanning case (6), direction rolling
Wheel (3) is connected to below handle connecting device (2), and probe (5) is located at scanning case (6) bottom centre position, electronic module (8)
The oblique upper of scanning case (6) is connected to by support (7), advance roller (4) is connected to scanning case by advance rolling wheel support (9)
(6) front.
2. a kind of metal class special equipment damage detection system being vortexed based on low frequency according to claim 1, its feature
It is：Telescoping handle (1) can shrink and be folded by handle connecting device (2).
3. a kind of metal class special equipment damage detection system being vortexed based on low frequency according to claim 1, its feature
It is：Electronic module (8) is made up of display module (81), power module (82), data acquisition and defect recognition module (83), number
Include main control chip (831), power amplifier (832) and signal processing module (833) according to collection and defect recognition module (83),
Display module (81) is made up of LCDs (811) and buzzer (812).
4. a kind of metal class special equipment damage detection system being vortexed based on low frequency according to claim 1, its feature
It is：Probe (5) is made up of hall effect sensor (51), excitation coil (52), and main control chip (831) produces a low frequency
Sinusoidal signal (1-100Hz), after power amplifier (832) amplification, signal produces magnetic field afterwards by excitation coil (52), lacks
Sunken that magnetic field can be made to change, hall effect sensor (51) can induce the change in this magnetic field and by signal processing module
(833) shown in LCDs (811).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621231865.XU CN206330934U (en) | 2016-11-14 | 2016-11-14 | A kind of metal class special equipment damage detection system being vortexed based on low frequency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621231865.XU CN206330934U (en) | 2016-11-14 | 2016-11-14 | A kind of metal class special equipment damage detection system being vortexed based on low frequency |
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| Publication Number | Publication Date |
|---|---|
| CN206330934U true CN206330934U (en) | 2017-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621231865.XU Expired - Fee Related CN206330934U (en) | 2016-11-14 | 2016-11-14 | A kind of metal class special equipment damage detection system being vortexed based on low frequency |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107995712A (en) * | 2017-12-08 | 2018-05-04 | 北京弗圣威尔科技有限公司 | Wireless power heating unit and heating means and placement thing and its preparation method |
-
2016
- 2016-11-14 CN CN201621231865.XU patent/CN206330934U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107995712A (en) * | 2017-12-08 | 2018-05-04 | 北京弗圣威尔科技有限公司 | Wireless power heating unit and heating means and placement thing and its preparation method |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170714 Termination date: 20211114 |
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| CF01 | Termination of patent right due to non-payment of annual fee |