CN203275629U - Power frequency magnetic field probe calibration tester - Google Patents
Power frequency magnetic field probe calibration tester Download PDFInfo
- Publication number
- CN203275629U CN203275629U CN 201320189807 CN201320189807U CN203275629U CN 203275629 U CN203275629 U CN 203275629U CN 201320189807 CN201320189807 CN 201320189807 CN 201320189807 U CN201320189807 U CN 201320189807U CN 203275629 U CN203275629 U CN 203275629U
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- China
- Prior art keywords
- magnetic field
- power frequency
- frequency magnetic
- field probe
- solenoid
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Abstract
The utility model relates to a power frequency magnetic field probe calibration tester. The calibration tester comprises an active circuit provided with a solenoid, a support holding a power frequency magnetic field probe to be tested, and a metal shielding box. The support is arranged right above the orifice of the solenoid, the solenoid is disposed inside the shielding box, and a round through hole whose location is corresponding to the position of the orifice of the solenoid is disposed in the shielding box. The support is arranged on the shielding box, and the cross section of the support is ring-shaped. The support is buckled at the edge of the through hole of the shielding box, and the height of the support is adjustable. One end of the solenoid is connected with a power supply, and the other end of the solenoid is connected with an adjustable electronic load. The power frequency magnetic field probe calibration tester can be used for calibrating and testing magnetic field detection parts of the power frequency magnetic field probe and a power frequency electromagnetic field probe, and calibrating the power frequency magnetic field probe.
Description
Technical field
The utility model relates to a kind of instrument for (referred to as the power frequency magnetic field probe) calibration of power frequency magnetic field tester and test use, can be used for equally calibration and the test of the magnetic field detection part of power frequency electromagnetic field tester.
Background technology
power frequency magnetic field, the accuracy of detection of emf probe can descend gradually along with the prolongation of term of life usually, in the higher application of some testing requirement precision, wish that probe can remain on a higher precision level, if not only increase use cost but send continually national metrological service to demarcate, also easily in transportation, cause the accidental damage of probe in carrying process, the individual or entity of therefore popping one's head in for frequent use, need a kind ofly to can be used for calibrating or the device of detection probe measuring error, to understand easily the accuracy of detection situation of change of probe used.
The utility model content
In order to solve the problems referred to above of prior art, the utility model provides a kind of power frequency magnetic field probe calibration tester, can be used for calibrating and testing the magnetic field detection part of power frequency magnetic field probe, power frequency electromagnet Field probe, in order to the measuring error of grasp probe under multiple tested environment, and can further calibrate probe accordingly.
The technical scheme that the utility model adopts is: a kind of power frequency magnetic field probe calibration tester, comprise the support that is provided with solenoidal active circuit and is used for placing tested power frequency magnetic field probe, described support be positioned at the described solenoid mouth of pipe directly over.
Described power frequency magnetic field probe calibration tester can also be provided with the shielded box of metal, and described solenoid is positioned at described shielded box, and position relative with the described solenoid mouth of pipe on described shielded box is provided with manhole, and described support is positioned on described shielded box.
Described support is the up/down perforation structure.
The xsect of described support can be annular, and described bracket buckle is located on the edge of through hole of described shielded box.
The height of described support is adjustable.
Can also be provided with the protective cover of transparent insulation on described shielded box, surround the space of sealing above described protective cover and shielded box, described support is positioned at the space of described sealing.
Described support is that insulating material is made.
For above-mentioned any one described power frequency magnetic field probe calibration tester, a described solenoidal end connects power supply, and the other end connects adjustable electronic load.
Described power supply is the frequency regulated power supply.
Be provided with separately current monitoring device in circuit before and after described solenoid.
The beneficial effects of the utility model are:
Flow through by change the power that solenoidal size of current can change magnetic field that solenoid produces, by changing the height of support, can change the position of tested power frequency magnetic field probe in solenoid produces magnetic field, both combine and be equivalent to simulate the magnetic field of different powers, magnetic field part for test and calibration power frequency magnetic field probe or power frequency electromagnet Field probe, the user that can conveniently pop one's head in grasps the magnetic-field measurement precision of probe, Reduce measurement error reduces because frequently sending national metrological service to demarcate the use cost that causes.
Owing to adopting electronic load, its electric energy that consumes all discharges with the form of heat, does not form the feedback electric parameter, therefore can form stable magnetic field, makes the analog magnetic field of formation more accurate.
Description of drawings
Fig. 1 is the structural representation of an embodiment of the present utility model.
Embodiment
The utility model provides a kind of power frequency magnetic field probe calibration tester, as shown in Figure 1, comprise the active circuit that is provided with solenoid 1 and be used for placing the support 2 of tested power frequency magnetic field probe, described support be positioned at the described solenoid mouth of pipe directly over.During use, switch on to active circuit, set up the electric current that solenoid coil flows through, solenoid produces a definite magnetic field, the magnetic field parameter that tested power frequency magnetic field probe detects is compared with the magnetic field parameter in the desirable magnetic field that its place, magnetic field sensor position solenoid produces, and can draw the detection error of described power frequency magnetic field probe.
Described power frequency magnetic field probe calibration tester also is provided with the shielded box 3 of metal, described solenoid is positioned at described shielded box, than avoiding the magnetic field in environment solenoid to be produced the impact in magnetic field, position relative with the described solenoid mouth of pipe on described shielded box is provided with manhole 3-1, be used for to the magnetic field of external leakage solenoid generation, make the power frequency magnetic field probe solenoidal magnetic field can be detected, the diameter of described manhole preferably is not less than solenoidal nozzle diameter.Described support is positioned on described shielded box.
Described support is preferably the up/down perforation structure, in order to avoid affect the power frequency magnetic field probe to the perception in magnetic field that solenoid produces, rotational symmetry structure more preferably, in the present embodiment, the xsect of described support is annular, described bracket buckle is located on the edge of through hole of described shielded box, and the central axial line of described support overlaps with described solenoidal central axial line.
Further, the height of described support is adjustable, and in the identical situation of other conditions, the height of support is transferred highlyer, and the magnetic field at place, power frequency magnetic field probe present position is more weak, in the situation that electric current is constant, has been equivalent to regulate the power of calibration with desirable magnetic field.The height regulative mode of described support can adopt any mode under prior art, and for example, described support can be combined by two parts that are threaded, and regulates both height after connecting by relative precession/back-out, and this mode is convenient to manual adjustment; Described support can also be comprised of rack body and support lifting device, and rack body can be moved by small machine driving up and down linear reciprocation on support lifting device, and this mode is more suitable for automatic control.Described support side can vertically be provided with graduated scale or position transducer, is used for weighing the height of support.
Can also be provided with the protective cover 4 of transparent insulation on described shielded box, surround the space of sealing above described protective cover and shielded box, described support is positioned at the space of described sealing, and active circuit is positioned at outside described protective cover.This protective cover neither affects the observation in calibration, test, has also reduced the interference of external environment.
Described support is that insulating material is made, with further reduce disturbance factor.
For above-mentioned any one described power frequency magnetic field probe calibration tester, described active circuit comprises variable-frequency power sources, filtering circuit, inverter circuit and the voltage-regulation voltage-stabilization circuit that is electrically connected to successively, a described solenoidal end rate of connections regulated power supply, the other end connects adjustable electronic load 5, the electric energy that electronic load consumes all discharges with the form of heat, do not form the feedback electric parameter, therefore can make solenoid produce stable magnetic field, make this analog magnetic field more precisely and stablize.The frequency regulated power supply can frequency conversion in the 0-100Hz scope, when the power frequency magnetic field probe is calibrated and is tested, need to open regulated power supply frequency adjustment to 50 or 60Hz, and the corresponding frequencies value that the relative error of gained power frequency magnetic field probe should be when the power frequency magnetic field probe detects other magnetic fields is corresponding.
To flow through solenoidal electric current in order debugging, and to control the duty of active circuit, also be respectively equipped with current monitoring device 6 on the circuit before and after described solenoid, be used for the stable of its two ends electric current of monitoring, with the stability in monitoring magnetic field that solenoid is produced.
Claims (10)
1. power frequency magnetic field probe calibration tester, is characterized in that comprising the support that is provided with solenoidal active circuit and is used for placing tested power frequency magnetic field probe, described support be positioned at the described solenoid mouth of pipe directly over.
2. power frequency magnetic field as claimed in claim 1 probe calibration tester, it is characterized in that also being provided with the shielded box of metal, described solenoid is positioned at described shielded box, and position relative with the described solenoid mouth of pipe on described shielded box is provided with manhole, and described support is positioned on described shielded box.
3. power frequency magnetic field probe calibration tester as claimed in claim 2, is characterized in that described support up/down perforation.
4. power frequency magnetic field as claimed in claim 3 probe calibration tester, the xsect that it is characterized in that described support is annular, described bracket buckle is located on the edge of through hole of described shielded box.
5. power frequency magnetic field probe calibration tester as claimed in claim 4, is characterized in that the height of described support is adjustable.
6. power frequency magnetic field as claimed in claim 5 probe calibration tester is characterized in that also being provided with on described shielded box the protective cover of transparent insulation, surrounds the space of sealing above described protective cover and shielded box, and described support is positioned at the space of described sealing.
7. power frequency magnetic field probe calibration tester as claimed in claim 6, is characterized in that described support is that insulating material is made.
8. as claim 1,2,3,4,5,6 or 7 described power frequency magnetic field probe calibration testers, it is characterized in that a described solenoidal end connects power supply, the other end connects adjustable electronic load.
9. power frequency magnetic field probe calibration tester as claimed in claim 8, is characterized in that described power supply is the frequency regulated power supply.
10. power frequency magnetic field as claimed in claim 9 probe calibration tester is characterized in that being provided with separately current monitoring device in the circuit before and after described solenoid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320189807 CN203275629U (en) | 2013-04-16 | 2013-04-16 | Power frequency magnetic field probe calibration tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320189807 CN203275629U (en) | 2013-04-16 | 2013-04-16 | Power frequency magnetic field probe calibration tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203275629U true CN203275629U (en) | 2013-11-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320189807 Expired - Fee Related CN203275629U (en) | 2013-04-16 | 2013-04-16 | Power frequency magnetic field probe calibration tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203275629U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103983933A (en) * | 2014-05-08 | 2014-08-13 | 工业和信息化部电子第五研究所 | Calibration measurement and frequency calibration method, system and device of board-level radio-frequency current probe |
| CN105093148A (en) * | 2014-05-20 | 2015-11-25 | 中国人民解放军63973部队 | Time-domain calibration method for electromagnetic pulse magnetic-field probe |
| CN105372475A (en) * | 2015-11-30 | 2016-03-02 | 工业和信息化部电子第五研究所 | Time domain measurement method, time domain measurement calibration method and time domain measurement calibration validation method of board-level radio-frequency current |
| CN105548933A (en) * | 2015-12-10 | 2016-05-04 | 清华大学 | Resolution detection system of constant magnetic field measuring instrument and time-varying magnetic field shielding device |
| CN104459238B (en) * | 2014-10-28 | 2017-08-29 | 成都工业学院 | A kind of measurement of magnetic field sensor production frock and manufacture craft |
| CN109917197A (en) * | 2019-04-02 | 2019-06-21 | 山东省波尔辐射环境技术中心 | A kind of electromagnet radiation detection instrument verifying device |
| CN110501665A (en) * | 2019-09-27 | 2019-11-26 | 广电计量检测（成都）有限公司 | A kind of comparison device of system for radiated susceptibility test equipment |
| CN110824402A (en) * | 2019-11-20 | 2020-02-21 | 合肥中科离子医学技术装备有限公司 | Device for calibrating magnetic field measuring probe of superconducting cyclotron |
| CN112098913A (en) * | 2020-09-16 | 2020-12-18 | 江苏方天电力技术有限公司 | Polar plate coil assembly for electromagnetic field calibration and electromagnetic field calibration device |
-
2013
- 2013-04-16 CN CN 201320189807 patent/CN203275629U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103983933A (en) * | 2014-05-08 | 2014-08-13 | 工业和信息化部电子第五研究所 | Calibration measurement and frequency calibration method, system and device of board-level radio-frequency current probe |
| CN105093148A (en) * | 2014-05-20 | 2015-11-25 | 中国人民解放军63973部队 | Time-domain calibration method for electromagnetic pulse magnetic-field probe |
| CN105093148B (en) * | 2014-05-20 | 2018-08-21 | 中国人民解放军63973部队 | A kind of Pulse Magnetic probe Time Domain Calibration method |
| CN104459238B (en) * | 2014-10-28 | 2017-08-29 | 成都工业学院 | A kind of measurement of magnetic field sensor production frock and manufacture craft |
| CN105372475A (en) * | 2015-11-30 | 2016-03-02 | 工业和信息化部电子第五研究所 | Time domain measurement method, time domain measurement calibration method and time domain measurement calibration validation method of board-level radio-frequency current |
| CN105548933A (en) * | 2015-12-10 | 2016-05-04 | 清华大学 | Resolution detection system of constant magnetic field measuring instrument and time-varying magnetic field shielding device |
| CN105548933B (en) * | 2015-12-10 | 2019-05-31 | 清华大学 | The resolution adjustment system and time-varying magnetic field screening arrangement of stationary magnetic field measuring instrument |
| CN109917197A (en) * | 2019-04-02 | 2019-06-21 | 山东省波尔辐射环境技术中心 | A kind of electromagnet radiation detection instrument verifying device |
| CN110501665A (en) * | 2019-09-27 | 2019-11-26 | 广电计量检测（成都）有限公司 | A kind of comparison device of system for radiated susceptibility test equipment |
| CN110824402A (en) * | 2019-11-20 | 2020-02-21 | 合肥中科离子医学技术装备有限公司 | Device for calibrating magnetic field measuring probe of superconducting cyclotron |
| CN112098913A (en) * | 2020-09-16 | 2020-12-18 | 江苏方天电力技术有限公司 | Polar plate coil assembly for electromagnetic field calibration and electromagnetic field calibration device |
| CN112098913B (en) * | 2020-09-16 | 2023-09-22 | 江苏方天电力技术有限公司 | Polar plate coil assembly for electromagnetic field calibration and electromagnetic field on-site calibration device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20140416 |