CN205193009U - A magnetic sensor test probe device for metal band internal defect detects - Google Patents
A magnetic sensor test probe device for metal band internal defect detects Download PDFInfo
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- CN205193009U CN205193009U CN201520850022.7U CN201520850022U CN205193009U CN 205193009 U CN205193009 U CN 205193009U CN 201520850022 U CN201520850022 U CN 201520850022U CN 205193009 U CN205193009 U CN 205193009U
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Abstract
The utility model discloses a magnetic sensor test probe device for metal band internal defect detects, sensor array (1) is formed through the ordered arrangement by a plurality of monomer sensors, a plurality of monomer sensors are installed in base plate (2) one side, the monomer sensor is connected in filter circuit (3), filter circuit installs on the base plate another side, shell (4) are with sensor array, base plate and filter circuit surround, still install thermal module (5) on the shell inner wall, thermal module includes fin and fan, thermal module dispels the heat facing to filter circuit and base plate, install on the base plate position sensor (6) for detect the distance of sensor to the metal band. A plurality of monomer sensors of sensor array are the two rows of ranges in front and back, the crisscross cover on whole metal band width. The utility model discloses a detect the principle based on the magnetic leakage and carry out the internal defect detection, can realize detecting the small internal defect on the metal band.
Description
Technical field
The utility model relates to a kind of Magnetic Flux Leakage Inspecting technology, particularly relates to a kind of magneto-dependent sensor detection probe device for sheet metal strip Inner Defect Testing.
Background technology
With one of prevailing quality defect that steel inherent vice is thin strip cold product, particularly for the belt steel product of the specific uses such as DI material and electromagnetic steel.In this kind of belt steel product, if there is inherent vice, can cause leaking equivalent risk, very large quality dispute be caused to downstream producer, brings much unnecessary trouble.Therefore at some cold rolled strip steel production line, in production run, internal soundness defect situation must be checked, prevent faulty goods to pay user.Producing due to cold-rolled steel strip products is high speed and automation process, and product offline inspection exists sampling risk.
Check that the method being with steel inherent vice is the method for detection such as leakage method and electromagnetic acoustic method.The technology of current comparative maturity is Magnetic Flux Leakage Inspecting method.In Magnetic Flux Leakage Inspecting, sensor many employings solenoid, Hall element or magneto sensor.In defect inspection process, multiple sensor is all needed to form Magnetosensitive sensor array to realize Inner Defect Testing.Therefore, this just needs to carry out exquisite technological design to magneto-dependent sensor detection probe, and to ensure that it can realize detecting sheet metal strip (band steel) overall with, and electromagnetic interference (EMI) can shield to greatest extent to external world.
Pass through patent retrieval, about the patent mainly Jap.P. that sheet metal strip Inner Defect Testing device is relevant: Jap.P. JP07038956U describes a kind of sensor for Magnetic Flux Leakage Inspecting, this sensor adopts coil mode to design, and can detect the inherent vice inside sheet metal strip.Jap.P. JP2004191220A describes a kind of device utilizing coil type sensor to carry out Magnetic Flux Leakage Inspecting.Jap.P. JP2010054292A describes a kind of magneto-dependent sensor that utilizes to the method for band steel Inner Defect Testing, can analyze, and determine defect size after magnetic leakage signal being detected to signal.
Summary of the invention
The purpose of this utility model is to provide a kind of magneto-dependent sensor detection probe device for sheet metal strip Inner Defect Testing, this detection probe device carries out Inner Defect Testing based on Magnetic Flux Leakage Inspecting principle, Magnetosensitive sensor array forms detection probe, realizes detecting the minute internal defect on sheet metal strip.
In order to realize above-mentioned technical purpose, the utility model adopts following technical scheme:
For a magneto-dependent sensor detection probe device for sheet metal strip Inner Defect Testing, comprise sensor array, substrate, filtering circuit, shell, radiating module and position transducer; Described sensor array is formed through ordered arrangement by multiple monomer sensor, multiple monomer sensor is installed in substrate side, monomer sensor is connected to filtering circuit, filtering circuit is installed on substrate another side, sensor array, substrate and filtering circuit surround by shell, outer casing inner wall is also provided with radiating module, and radiating module comprises heat radiator and fan, and radiating module dispels the heat facing to filtering circuit and substrate; Described position transducer is installed on substrate, in order to the distance of detecting sensor to sheet metal strip.
The monomer sensor of described sensor array is magneto-dependent sensor, comprises magnetoresistive transducer or Hall element.
Multiple monomer sensor of described sensor array are front two rows arrangement, interlock and cover on whole sheet metal strip width.
The monomer sensor quantity n of described sensor array, is determined by strip width W to be measured and the effective detection width d of monomer sensor:
.
A kind of detection probe device that magneto-dependent sensor detection probe device of the present utility model realizes mainly for leakage field device, to be that front two rows is staggered cover on the whole Width of sheet metal strip to be measured for the sensor array of this detection probe device, sensor array and filtering circuit are arranged on substrate, substrate is fixed on detection probe housing, radiating module and position transducer be also equipped with simultaneously detection probe, to ensure that it can continually and steadily and safety detection.Whole detection probe shell adopts magnetic shielding material to make, and its detection perform is remarkable, has a extensive future.
Detection probe device of the present utility model carries out Inner Defect Testing based on Magnetic Flux Leakage Inspecting principle, and Magnetosensitive sensor array forms detection probe, realizes detecting the minute internal defect on sheet metal strip.
Accompanying drawing explanation
Fig. 1 is the magneto-dependent sensor detection probe apparatus structure schematic diagram of the utility model for sheet metal strip Inner Defect Testing;
Fig. 2 is the monomer sensor arrangement schematic diagram of sensor array;
Fig. 3 is magneto-dependent sensor detection probe device embody rule schematic diagram of the present utility model.
In figure: 1 sensor array, 2 substrates, 3 filtering circuits, 4 shells, 5 radiating modules, 6 position transducers.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
See Fig. 1 and Fig. 2, a kind of magneto-dependent sensor detection probe device for sheet metal strip Inner Defect Testing, comprises sensor array 1, substrate 2, filtering circuit 3, shell 4, radiating module 5 and position transducer 6;
Described sensor array 1 is formed through ordered arrangement by multiple monomer sensor, multiple monomer sensor is installed in substrate 2 one side, monomer sensor is connected to filtering circuit 3, and filtering circuit 3 is installed on substrate another side, and substrate 2 and filtering circuit 3 form sensor array module jointly.
The monomer sensor of described sensor array 1 is magneto-dependent sensor, comprises magnetoresistive transducer or Hall element.Effective detection width of monomer sensor is determined by monomer sensor size, and effective detection width of each magneto-dependent sensor is dmm.Multiple monomer sensor of sensor array 1 are front two rows arrangement, and interlock and cover on whole sheet metal strip (as band steel) width, the monomer sensor quantity n of sensor array 1, is determined by strip width W to be measured and the effective detection width d of monomer sensor:
, can ensure that all defect of sheet metal strip is all detected so to greatest extent.Accurately to locate each monomer sensor installation site during installation, to ensure all unanimously even of arrangement.
Sensor array 1, substrate 2 and filtering circuit 3 surround by described shell 4, and shell 4 adopts shielding material to make, to prevent extraneous magnetic interference.Shell 4 inwall is also provided with radiating module 5, and radiating module 5 comprises heat radiator and fan, and radiating module 5 dispels the heat facing to filtering circuit 3 and substrate 2, and radiating module 5 adopts air-cooled mode to dispel the heat.
Described position transducer 6 is installed on substrate 2, and in order to the distance of detecting sensor to sheet metal strip, once position is too close, system can send signal and sensor array be moved prevent to damage.
Magneto-dependent sensor detection probe device of the present utility model is a kind of sensor detection probe module of thin strip inside being carried out to defects detection, in such checkout equipment, Magnetic Flux Leakage Inspecting principle is often adopted to detect, therefore, need to form detection probe by magneto-dependent sensor, with satisfied detection demand.
Conveniently installment and debugging, magneto-dependent sensor detection probe device of the present utility model adopts modular mounting means, is namely one group with 30-50 monomer sensor and installs.Large quantity sensor works simultaneously and there is overheated problem, in order to solve the heat dissipation problem of sensor and circuit, has installed heat radiator and fan at the back side of module, adopts air-cooled method to dispel the heat.For sensor due to its near belt steel surface work thus exist by the possibility knocked down.In order to prevent the damage of sensor, installed position transducer in probe positions, acquisition sensor is to the range information of band steel.Once position is too close, system can send signal and sensor array be moved prevent to damage.
Specific embodiment, see Fig. 3, the application of magneto-dependent sensor detection probe device (i.e. magnetosensitive detection probe 14) of the present utility model on sheet metal strip Inner Defect Testing caliberating device.Demarcating model 13 is arranged in calibration rollers 12, drives it to move by motor 11.Magnetizing assembly 15 is treated measuring tape steel and is magnetized, and makes it reach magnetic saturation.Meanwhile, magnetosensitive detection probe 14 is moved to detecting position, namely itself and treat that the distance between measuring tape steel meets testing requirement.Run up in process at demarcation model 13, flaw indication on model 13 can produce magnetic leakage signal, data acquisition card 16 collects signal, computing machine 17 just can process flaw indication, and can according to the drawbacks of the standard RST collected, by adjustment of sensitivity module 18, adjustment of sensitivity is carried out to the magneto-dependent sensor of magnetosensitive detection probe 14, all magneto-dependent sensor detection sensitivities of magnetosensitive detection probe 14 are consistent.
These are only preferred embodiment of the present utility model; be not intended to limit protection domain of the present utility model; therefore, all do within spirit of the present utility model and principle any amendment, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. for a magneto-dependent sensor detection probe device for sheet metal strip Inner Defect Testing, it is characterized in that: comprise sensor array (1), substrate (2), filtering circuit (3), shell (4), radiating module (5) and position transducer (6);
Described sensor array (1) is formed through ordered arrangement by multiple monomer sensor, multiple monomer sensor is installed in substrate (2) one side, monomer sensor is connected to filtering circuit (3), filtering circuit (3) is installed on substrate (2) another side, sensor array (1), substrate (2) and filtering circuit (3) surround by shell (4), shell (4) inwall is also provided with radiating module (5), radiating module (5) comprises heat radiator and fan, and radiating module 5 dispels the heat facing to filtering circuit 3 and substrate 2;
Described position transducer (6) is installed on substrate (2), in order to the distance of detecting sensor to sheet metal strip.
2. the magneto-dependent sensor detection probe device for sheet metal strip Inner Defect Testing according to claim 1, is characterized in that: the monomer sensor of described sensor array (1) is magneto-dependent sensor, comprises magnetoresistive transducer or Hall element.
3. the magneto-dependent sensor detection probe device for sheet metal strip Inner Defect Testing according to claim 1, it is characterized in that: multiple monomer sensor of described sensor array (1) are front two rows arrangement, interlock and cover on whole sheet metal strip width.
4. the magneto-dependent sensor detection probe device for sheet metal strip Inner Defect Testing according to claim 3, it is characterized in that: the monomer sensor quantity n of described sensor array (1), determined by strip width W to be measured and the effective detection width d of monomer sensor:
.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520850022.7U CN205193009U (en) | 2015-10-30 | 2015-10-30 | A magnetic sensor test probe device for metal band internal defect detects |
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| CN201520850022.7U CN205193009U (en) | 2015-10-30 | 2015-10-30 | A magnetic sensor test probe device for metal band internal defect detects |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108831925A (en) * | 2018-05-30 | 2018-11-16 | 上海华力集成电路制造有限公司 | The defect detection structure and its method for detecting of fin field effect electric crystal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108831925A (en) * | 2018-05-30 | 2018-11-16 | 上海华力集成电路制造有限公司 | The defect detection structure and its method for detecting of fin field effect electric crystal |
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