CN201057538Y - Coercive force testing device for ferromagnetic material - Google Patents
Coercive force testing device for ferromagnetic material Download PDFInfo
- Publication number
- CN201057538Y CN201057538Y CNU2007201269400U CN200720126940U CN201057538Y CN 201057538 Y CN201057538 Y CN 201057538Y CN U2007201269400 U CNU2007201269400 U CN U2007201269400U CN 200720126940 U CN200720126940 U CN 200720126940U CN 201057538 Y CN201057538 Y CN 201057538Y
- Authority
- CN
- China
- Prior art keywords
- coil
- magnetizing
- degaussing
- field
- coercive force
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 239000003302 ferromagnetic material Substances 0.000 title claims description 12
- 238000012360 testing method Methods 0.000 title description 16
- 238000009434 installation Methods 0.000 claims description 19
- 238000009432 framing Methods 0.000 claims description 10
- 230000005415 magnetization Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 abstract description 25
- 238000001514 detection method Methods 0.000 abstract description 2
- 239000006185 dispersion Substances 0.000 abstract description 2
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 230000005291 magnetic effect Effects 0.000 description 14
- 238000005259 measurement Methods 0.000 description 5
- 239000000696 magnetic material Substances 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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- Measuring Magnetic Variables (AREA)
Abstract
The utility model discloses a ferromagnet coervice force detector, consisting of a magnetizing coil L[1], a degaussing coil L[2] and a residual field detecting sensor B[4]. The magnetizing coil L[1] and the degaussing coil L[2] are wound on the main frame of the coils, and the magnetizing coil L[1] is in the internal layer, while the degaussing coil L[2] is in the external layer, and the residual field detecting sensor B[4] is symmetrically fixed outside the degaussing coil L[2]. The utility model has the advantages that: (1) the magnetizing field generating coil L[1] and the degaussing field generating coil L[2] are independent with each other, which reduces the temperature rise of an internal detecting area, and realizes the natural heat dispersion; (2) the structure of two residual field detecting sensor B[4] is adopted, thus satisfying the requirements of complete parameters measuring of the measured materials and enhancing the measuring precision, so the data repeatability is comparatively better; (3) the magnetizing field generating coil is designed in the internal layer, the internal diameter is comparatively small, the structure is compact, the size is small, the weight is light, and the detection of coervice force is easy and the operation is convenient.
Description
The utility model be invention and created name be " test magnetic field generation device " patented claim divide an application former number of patent application: 2006200503800, the applying date: 2006.3.23.
Technical field:
The utility model relates in the magnetic fields Magnetic Measurement equipment that the coercive force Hc parameter to metallurgical materials such as wimet detects, and specifically refers to a kind of ferromagnetic material coercive force proving installation.
Background technology:
The situation of at present external coercive force proving installation, general proving installation commonly used has two kinds: magnetizing field and demagnetizing field two parts are separately done without help apparatus for converting 1..After measured material at first is placed on and is magnetized in the device that magnetizing field produces, take out in accordance with regulations polarity then and put in the device that demagnetizing field produces and carry out degaussing, thereby test out the coercive force value.The relative merits of this kind method are: because two kinds of magnetic field generating part are worked respectively, radiating effect is better, generally do not need other heat radiation facilities, but two parts need keep certain distance, disturbs in order to avoid produce mutually.Therefore equipment set dispersion, huge more can't be carried out automatic test.In addition, measured material is fetched into from the magnetizing field device to be put in the demagnetizing field generation device again, and operation is tired like this locks, and measured material is from being magnetized to, the interval time of degaussing is longer, and this can give in some, the measurement of weak magnetic material brings measuring error; 2. the shared same group of coil that produces D.C. magnetic field of the generation of magnetizing field and demagnetizing field.The advantage of this kind method is: the volume of device is less, and measured material is shorter from the interval time that is magnetized to the beginning degaussing, can conveniently realize automatic test.But this kind device will produce relatively difficulty of high-intensity magnetizing field, needs dc high voltage.In addition, because of the shared same group of coil that produces magnetic field of the generation in two kinds of magnetic fields, it is bigger therefore to install thermal value, need add around the hollow copper tubing water flowing at coil interlayer and dispel the heat.This just makes one-piece construction become huge and uses inconvenient.
Moreover, the sensor that detects measured material surface remnant field intensity generally has only one, this detection mode in fact just detects the part surface remanent magnetism of measured material and with requirement that needs detect overall performance bigger difference is arranged, especially serious to the repeatability influence of the test result of profile abnormal wood material, be easy to generate than mistake.
Summary of the invention:
The purpose of this utility model is to provide a kind of ferromagnetic material coercive force Hc proving installation, and the volume of device is little, thermal value is few, easy to use; In being fit to, the measurement of weak magnetic material; Measuring error to profile abnormal wood material is also little.
The purpose of this utility model is achieved like this, and this ferromagnetic material coercive force proving installation is by magnetizing coil L
1, degaussing coil L
2With remnant field detecting sensor B
4Constitute magnetization, degaussing coil L
1, L
2On the coil main framing, magnetizing coil L
1At nexine, degaussing coil L
2At skin, remnant field sensor B
4Be fixed on degaussing coil L symmetrically
2The outside.
Described coil L
1On the coil main framing, degaussing coil L
2Divide two parts on the degaussing coil skeleton of coil main framing two ends, magnetizing coil L
1At nexine, degaussing coil L
2At skin.
Any test that contains the coercive force Hc parameter of iron, nickel, cobalt element material, all must have and to make measured material fully be magnetized into the uniform magnetic field (abbreviation demagnetizing field) of saturated normal magnetization field (abbreviation magnetizing field) and suitable material demagnetization, magnetizing field desired strength height, evenly need to keep the regular hour.Because the utility model L
1, L
2On coil main framing 1, L
1At nexine, L
2At skin, B4 is fixed on L symmetrically by back up pad, connecting rod
2The outside.L
2Join around suitable compensating coil, and can lead to change L
2Length and the parameter of compensating coil so that the proving installation test section can produce the even demagnetizing field that satisfies test request.Detected material must be placed on the optimum position in the homogeneity range in two kinds of magnetic fields, and two remnant field detecting sensors must be placed on the sensitive position that detects measured material surface remnant field, at the gating pulse excitation supply to magnetizing coil L
1After the discharge, material is just arrived saturated by spontaneous magnetization, and its polarization intensity is detected processing and indicated its intensity size by highly sensitive remnant field signal, but the degaussing coil of automatic or manual control then L
2In magnetic field material is carried out degaussing, can accurately detect the coercive force Hc value of measured material, this proving installation has overcome the shortcoming of coercive force Hc proving installation commonly used, have the following advantages: 1. magnetizing field produces coil L
1Produce coil L with demagnetizing field
2Respectively independently, significantly reduced the temperature rise in proving installation build-in test district 4, realized natural heat dissipation, reduced the influence of temperature rise to test result effectively, this is very favourable to improving measuring accuracy; 2. produce coil L owing to adopt 2 remnant field detecting sensor B4 to be fixed on demagnetizing field symmetrically
2The structure of outside, satisfied the needs that measured material carried out the univers parameter test, thereby improved measuring accuracy greatly, make data repeatability better, the measurement of the suitable irregular material of profile; 3. because magnetizing field produces coil all designs at nexine, its internal diameter is less, thereby obtains strong easily and magnetizing field uniformly, in being fit to, the measurement of weak magnetic material; 4.L
1, L
2, B4 scientifically forms as a wholely, the structure of proving installation tightly beaten, volume significantly reduces, weight saving, and make the test of coercive force realize that robotization becomes to be easy to, and easy to use.
Description of drawings:
Fig. 1 is a ferromagnetic material coercive force I type proving installation plan structure synoptic diagram.
Fig. 2 is a ferromagnetic material coercive force II type proving installation plan structure synoptic diagram.
Embodiment:
Referring to Fig. 1-Fig. 2, this ferromagnetic material coercive force proving installation is by magnetizing coil L
1, degaussing coil L
2With remnant field detecting sensor B
4Constitute magnetization, degaussing coil L
1, L
2On coil main framing 1, magnetizing coil L
1At nexine, degaussing coil L
2At skin, remnant field detecting sensor B
4Be fixed on degaussing coil L symmetrically by back up pad 5, connecting rod 3
2The outside so that be easy to generate the magnetizing field that is higher than 200KA/m, satisfy the needs that measured material carried out the univers parameter test.
Described coil L
1On coil main framing 1, degaussing coil L
2Divide two parts symmetry on coil main framing 1 two ends degaussing coil skeleton 2, magnetizing coil L
1At nexine, degaussing coil L
2At skin.Skeleton 2 plays support link 3 effects, remnant field detecting sensor B
4Be fixed on degaussing coil L symmetrically by degaussing coil skeleton 2, connecting rod 3
2The outside, when detecting the large volume ferromagnetic material, the volume in build-in test district 4 is corresponding big, is to guarantee magnetic field intensity, must strengthen magnetizing coil L
1Magnetization current, thus bring temperature to raise, and the problem of weak heat-dissipating is adjusted L
2Two-part spacing and and L
1Mutual position obtains magnetizing field by force and uniformly easily, also makes magnetizing coil L
1, degaussing coil L
2Can not cover mutually, contain, make magnetizing coil L
1, degaussing coil L
2Good heat dissipation, the suitable ferromagnetic material that detects large volume, heavy amount.
Produce part in magnetizing field, can be by changing magnetizing coil L
1Internal diameter changes magnetizing coil L to adapt to the test needs of various measured material difformities and volume
1Length to guarantee that enough even magnetic saturation fields, magnetizing coil L are arranged
1During energising, at magnetizing coil L
1The interior generation satisfied the abundant magnetically saturated impulse magnetic field of material, and its intensity and width can conveniently be regulated.Select proving installation, at first according to the volume range of measured material (diameter of measured material is when φ 110mm is following, and proving installation adopts the I type, and diameter is during greater than φ 110mm, and proving installation is selected the II type for use).
Magnetic field generating part and degaussing partial circuit be referring to former patented claim, number of patent application: 2006200503800, and the applying date: 2006.3.23.
Claims (2)
1. ferromagnetic material coercive force proving installation is characterized in that: by magnetizing coil L
1, degaussing coil L
2With remnant field detecting sensor B
4Constitute magnetization, degaussing coil L
1, L
2On the coil main framing, magnetizing coil L
1At nexine, degaussing coil L
2At skin, remnant field sensor B
4Be fixed on degaussing coil L symmetrically
2The outside.
2. by the described ferromagnetic material coercive force of claim 1 proving installation, it is characterized in that: described coil L
1On the coil main framing, degaussing coil L
2Divide two parts on the degaussing coil skeleton at coil main framing two ends, magnetizing coil L
1At nexine, degaussing coil L
2At skin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201269400U CN201057538Y (en) | 2006-03-23 | 2006-03-23 | Coercive force testing device for ferromagnetic material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201269400U CN201057538Y (en) | 2006-03-23 | 2006-03-23 | Coercive force testing device for ferromagnetic material |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620050380 Division CN200983003Y (en) | 2006-03-23 | 2006-03-23 | Test magnetic field generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201057538Y true CN201057538Y (en) | 2008-05-07 |
Family
ID=39426378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201269400U Expired - Lifetime CN201057538Y (en) | 2006-03-23 | 2006-03-23 | Coercive force testing device for ferromagnetic material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201057538Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115032577A (en) * | 2022-08-10 | 2022-09-09 | 之江实验室 | Low-noise residual magnetism detection device and method for annular ferrite material |
-
2006
- 2006-03-23 CN CNU2007201269400U patent/CN201057538Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115032577A (en) * | 2022-08-10 | 2022-09-09 | 之江实验室 | Low-noise residual magnetism detection device and method for annular ferrite material |
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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 |
Granted publication date: 20080507 |
|
| EXPY | Termination of patent right or utility model |