CN113884719A - Multifunctional voltage-stabilized power supply for AC magnetic yoke calibration - Google Patents
Multifunctional voltage-stabilized power supply for AC magnetic yoke calibration Download PDFInfo
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- CN113884719A CN113884719A CN202111065333.9A CN202111065333A CN113884719A CN 113884719 A CN113884719 A CN 113884719A CN 202111065333 A CN202111065333 A CN 202111065333A CN 113884719 A CN113884719 A CN 113884719A
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- 230000001105 regulatory effect Effects 0.000 claims description 26
- 239000003638 chemical reducing agent Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 5
- 230000000087 stabilizing effect Effects 0.000 description 5
- 230000006378 damage Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 206010014357 Electric shock Diseases 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/28—Provision in measuring instruments for reference values, e.g. standard voltage, standard waveform
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Abstract
A multifunctional voltage-stabilized power supply for calibrating an alternating current magnetic yoke comprises an ammeter and a voltmeter, wherein an electromagnetic yoke power supply slot is formed in the ammeter, the ammeter is connected with an output circuit of the electromagnetic power supply slot in series and used for detecting magnetizing current of an electromagnetic yoke externally connected with the electromagnetic yoke power supply slot; the voltmeter is connected with an output circuit of the electromagnetic yoke power supply slot in parallel and used for detecting the power supply voltage of the electromagnetic yoke externally connected with the electromagnetic yoke power supply slot. The multifunctional voltage-stabilized power supply for calibrating the alternating current magnetic yoke can effectively avoid the use mode of peeling off the insulating layer skin of the electromagnetic yoke when in use due to unmatched connection modes of the electromagnetic yoke in the prior art, provides a multifunctional voltage-stabilized power supply for the electromagnetic yokes with different voltages or different interface types, has a voltage regulation function and can flexibly adapt to the working voltage of the electromagnetic yoke.
Description
Technical Field
The invention belongs to the field of electric power, and particularly relates to a multifunctional voltage-stabilized power supply for calibrating an alternating current magnetic yoke.
Background
In order to ensure the accuracy and reliability of the AC electromagnetic yoke on the flaw detection result of the workpiece, the magnetizing current of the electromagnetic yoke needs to be detected according to the requirements of the national measurement and calibration standard JJF1458-2014 magnetic yoke magnetic particle flaw detector calibration standard. When the AC electromagnetic yoke is used for magnetic powder inspection, the workpiece is magnetized by AC power so as to obtain a certain magnetic field on the surface of the workpiece. The magnitude of the magnetizing current represents the magnitude of the magnetization intensity, and is one of important parameters for judging the performance of the alternating current magnetic yoke, so that the calibration of the alternating current magnetic yoke magnetizing current is very important. According to the method for detecting the magnetizing current of the alternating current electromagnetic yoke in China, the alternating current electromagnetic yoke is connected to a voltage-stabilizing power supply, and because the conventional voltage-stabilizing power supply on the market is not directly suitable for a socket of the alternating current electromagnetic yoke, when the voltage-stabilizing power supply is connected in the calibration process, a power line of the electromagnetic yoke needs to be detached and is wound on an output port of the voltage-stabilizing power supply by using an internal metal wire for connection. However, this method cannot directly measure the magnetizing current value of the electromagnetic yoke, and needs to pull the insulating rubber of the ac electromagnetic yoke power line open to make it in a working state, and then use a clamp ammeter to detect the conducting wire in the pulled insulating rubber, where the current value of the clamp ammeter is the magnetizing current value of the ac electromagnetic yoke. The measurement result obtained by the method has great system error, irreversible damage can be caused to the electromagnetic yoke, the service life of the electromagnetic yoke is shortened, the possibility of electric leakage exists in the daily use process of the electromagnetic yoke, and the electric shock risk of operators is increased.
Therefore, it is desirable to provide a voltage regulator power supply that is friendly to the electromagnetic yoke to reduce losses to the electromagnetic yoke and to address personal injury to workers due to leakage current caused by stripping the electromagnetic yoke.
Disclosure of Invention
In order to solve the problems, the invention provides a multifunctional voltage-stabilized power supply for calibrating an alternating current magnetic yoke, which reduces the cost consumption caused by the loss of the electromagnetic yoke in the working environment and the personal injury to workers due to the damage of the electromagnetic yoke, and comprises an ammeter and a voltmeter, wherein the ammeter is connected in series with an output circuit of the electromagnetic power supply slot and is used for detecting the magnetizing current of the electromagnetic yoke externally connected with the electromagnetic yoke power supply slot; the voltmeter is connected with an output circuit of the electromagnetic yoke power supply slot in parallel and used for detecting the power supply voltage of the electromagnetic yoke externally connected with the electromagnetic yoke power supply slot.
In some embodiments of the invention, the current meter and the voltage meter comprise:
a first ammeter and a 36V voltmeter, the 36V voltmeter being connected in parallel with a 36V output circuit, the first ammeter being connected in series with the 36V output circuit.
In some embodiments of the invention, the electromagnetic yoke power supply socket comprises:
the 36V five-hole power supply slot is connected with the output circuit and used for supplying 36V alternating current to the outside.
In some embodiments of the invention, further comprising:
and the input end of the contact voltage regulator is connected with 220V alternating current, and the output end of the contact voltage regulator is connected with the 36V five-hole power supply slot and supplies power.
In some embodiments of the invention, further comprising:
and the fine adjustment knob is connected with the voltage regulation control end of the contact voltage regulator and is used for regulating the output voltage of the output end of the contact voltage regulator.
In some embodiments of the invention, further comprising:
and the speed reducer is positioned between the fine adjustment knob and the contact type voltage regulator, and is configured to reduce the adjusting speed of the fine adjustment knob to the contact type voltage regulator.
In some embodiments of the invention, the current meter and the voltage meter further comprise:
a second ammeter and a 220V voltmeter, wherein the 220 voltmeter is connected in parallel with the 220V output circuit, and the 22V ammeter is connected in series with the 220V output circuit.
In some embodiments of the invention, further comprising:
and the working indicator lamp is connected in series with the input circuit of the stabilized voltage power supply.
In some embodiments of the invention, further comprising:
and the starting button is configured to control the on-off of the voltage-stabilized source output circuit connected with the electromagnetic yoke power supply slot through a contactor coil of the voltage-stabilized source output circuit connected with the electromagnetic yoke power supply slot in series.
In some embodiments of the invention, further comprising:
a stop button configured to control the on-off of the input power.
The multifunctional voltage-stabilized power supply for calibrating the alternating current magnetic yoke can effectively avoid the use mode of peeling off the insulating layer skin of the electromagnetic yoke when in use due to unmatched connection modes of the electromagnetic yoke in the prior art, provides a multifunctional voltage-stabilized power supply for the electromagnetic yokes with different voltages or different interface types, has a voltage regulation function and can flexibly adapt to the working voltage of the electromagnetic yoke.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other embodiments can be obtained by using the drawings without creative efforts.
FIG. 1 is a schematic diagram of a voltage regulator according to an embodiment of the present invention;
FIG. 2 is a simplified circuit diagram of a regulated power supply according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following embodiments of the present invention are described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the present invention provides a multifunctional regulated power supply 10 for ac magnetic yoke calibration, which includes an ammeter and a voltmeter, and an electromagnetic yoke power supply slot, wherein the ammeter is connected in series with an output circuit of the electromagnetic power supply slot and is used for detecting a magnetizing current of an electromagnetic yoke externally connected to the electromagnetic yoke power supply slot; the voltmeter is connected with an output circuit of the electromagnetic yoke power supply slot in parallel and used for detecting the power supply voltage of the electromagnetic yoke externally connected with the electromagnetic yoke power supply slot.
In this embodiment, as shown in fig. 1, the current meter and the voltage meter each display the current meter and the voltage meter shown in fig. 1 or 2 through a display screen, each current meter and each voltage meter corresponds to one electromagnetic yoke power supply slot 6 or 7, and detects and displays the magnetizing current of the electromagnetic yoke connected to the electromagnetic yoke power supply slot 6 or 7, respectively.
In some embodiments of the invention, the current meter and the voltage meter comprise:
a first ammeter and a 36V voltmeter, the 36V voltmeter being connected in parallel with a 36V output circuit, the first ammeter being connected in series with the 36V output circuit.
In this embodiment, the regulated power supply 10 is provided with a 36V regulated output circuit, and a first ammeter with a maximum detection current of 20A is connected in series to the 36V circuit, and a 36V voltmeter is connected in parallel, as shown in the current voltmeter 1 in fig. 1, and the first ammeter and the 36V voltmeter are combined and displayed in the current voltmeter 1.
In some embodiments of the invention, the electromagnetic yoke power supply socket comprises:
the 36V five-hole power supply slot 6 is connected with the output circuit and used for supplying 36V alternating current to the outside.
In this embodiment, the output of the ac 36V regulator circuit in the regulator 10 is realized by the five-hole electromagnet yoke power supply slot 6. Five hole power supply slots 6 can support the electromagnetism yoke of three hole plugs and two hole plugs, and the electromagnetism yoke of 3 hole plugs wherein can possess the ground connection function, further guarantees the safety of electricity utilization in the use of electromagnetism yoke.
In some embodiments of the invention, further comprising:
and the input end of the contact voltage regulator is connected with 220V alternating current, and the output end of the contact voltage regulator is connected with the 36V five-hole power supply slot and supplies power.
In this embodiment, as shown in fig. 2, the ac 36V regulator circuit in the regulated power supply 10 further includes a contact-time regulator 12 for converting 220V ac power into 36V ac power, the input end of the contact-type regulator is 220V ac power, the output end of the contact-type regulator is a regulated power supply of 36V, and the regulated power supply is output through the slot 6 in fig. 1. In actual use, the voltage can be regulated to a specified voltage through the contact type voltage regulator 12 as a voltage stabilizing source and is output to the connected electromagnetic yoke.
In some embodiments of the invention, further comprising:
and the fine adjustment knob 8 is connected with the voltage regulation control end of the contact voltage regulator 12 and used for regulating the output voltage of the output end of the contact voltage regulator 12.
In the present embodiment, regulated power supply 10 further includes a trim knob 8 for adjusting the output voltage of regulated power supply 10, as shown in fig. 1. The fine adjustment knob 8 is connected with the voltage regulation control end of the contact voltage regulator 12 inside the stabilized voltage power supply 10, and drives the voltage regulation control end of the contact voltage regulator 12 to displace when the fine adjustment knob 8 rotates so as to change the output voltage of the contact voltage regulator 12.
In some embodiments of the invention, further comprising:
and the speed reducer is positioned between the fine adjustment knob and the contact type voltage regulator, and is configured to reduce the adjusting speed of the fine adjustment knob 8 to the contact type voltage regulator 12.
In this embodiment, a speed reducer is further disposed between the fine adjustment knob 8 and the contact voltage regulator 12, and the speed reducer can more accurately adjust the low-voltage output. The change of the rotation of the fine adjustment knob 8 at the voltage regulation control end of the contact voltage regulator is reduced.
In some embodiments of the invention, the current meter and the voltage meter further comprise:
a second ammeter and a 220V voltmeter, wherein the 220 voltmeter is connected in parallel with the 220V output circuit, and the 22V ammeter is connected in series with the 220V output circuit.
In the present embodiment, as shown in fig. 1, the regulated power supply 10 further includes a 220V current-voltage meter 2, and the 220V voltage meter and the 220V current meter are respectively disposed in the current-voltage meter 2, wherein the maximum range of the current meter is 20A. The 220V voltmeter is connected in parallel with the 220V voltage-stabilizing output circuit connected with the power supply slot 7, and the 220V ammeter is connected in series with the 220V voltage-stabilizing output circuit connected with the power supply slot 7.
In some embodiments of the invention, further comprising:
and the work indicator lamp 3 is connected in series with an input circuit of the stabilized voltage power supply.
In the present embodiment, as shown in fig. 1, the regulated power supply 10 is further provided with an operation indicator lamp 3 for displaying the input state of the regulated power supply.
In some embodiments of the invention, further comprising:
and the starting button 4 is configured to control the on-off of the voltage-stabilized source output circuit connected with the electromagnetic yoke power supply slot through a contactor coil of the voltage-stabilized source output circuit connected with the electromagnetic yoke power supply slot in series.
In the present embodiment, as shown in the circuit diagram shown in fig. 2, the start button 4 is shown in fig. 2 as a switch S2, and when the switch S2 is closed (default S1 is already closed and energized), the contactor coil 13 operates to generate a magnetic field, and further close the contact auxiliary normally- open points 14, 15, and 16 by being pulled by the magnetic field. At this time, the operation indicator lamp 3 is turned on normally by the circuit conduction, and the voltage meters V1 and V2 shown in fig. 2 indicate that the voltages of the power supply slot 6 and the power supply slot 7 are 36V and 220V, respectively. And is shown by a certain position of the current- voltage meters 1 and 2. When the power supply socket 6 or 7 is connected to the electromagnetic yoke and forms a closed loop, the corresponding current is displayed on the current voltmeter 1 or 2.
The method specifically comprises the following steps: and at the moment, the current value displayed by the ammeter voltmeter on the special multifunctional voltage stabilizing power supply for the alternating current magnetic yoke is the magnetizing current value of the electrified magnetic yoke in the working state.
It should be noted that the circuit diagram shown in fig. 2 is only a schematic diagram, and does not show the actual three-dimensional spatial positions of the contact coil 13 and the contact auxiliary normally- open points 14, 15, and 16 in practice. In practical applications, the touch coil 13 and the touch auxiliary normally-on points 14, 15 and 16 are closely distributed, so that the magnetic field generated by the touch coil 13 can close the switches of the touch auxiliary normally-on points 14, 15 and 16.
In some embodiments of the invention, further comprising:
a stop button 5, said stop button arrangement 5 being configured to control the switching on and off of the input power.
In this embodiment, as shown in the previous embodiment, the start button 4 in the previous embodiment controls the on/off of the voltage-stabilizing output circuit in the voltage-stabilizing power supply 10 through the contact coil, so that the decoupling between the start button 4 and the voltage-stabilizing output circuit can be ensured, the current interference of the voltage-stabilizing output circuit due to the switching circuit can be purified, and the anti-interference capability of the circuit can be improved. If the contact auxiliary normally open point of the voltage stabilizing output circuit cannot be disconnected due to a contact coil failure or other reasons, the stop button 5 can be used to cut off the input of the power supply of the voltage stabilizing power supply 10. In normal use, the stop button can be in a closed state, and the stabilized voltage output circuit is not conducted as long as the work indicator lamp 3 is not on. The processing is quickly powered off by the stop button 5 upon occurrence of an abnormality.
The multifunctional voltage-stabilized power supply for calibrating the alternating current magnetic yoke can effectively avoid the use mode of peeling off the insulating layer skin of the electromagnetic yoke when in use due to unmatched connection modes of the electromagnetic yoke in the prior art, provides a multifunctional voltage-stabilized power supply for the electromagnetic yokes with different voltages or different interface types, has a voltage regulation function and can flexibly adapt to the working voltage of the electromagnetic yoke. The multifunctional voltage stabilizing source for calibrating the alternating current magnetic yoke adopts a contact voltage regulator to regulate voltage, and a speed reducer is connected with a fine adjustment knob, so that low-voltage output can be regulated more accurately. Two current-voltage meters arranged on the voltage-stabilized power supply respectively correspond to rated voltages of 36V and 220V and are used for achieving the purpose of detecting the magnetizing current of the alternating current magnetic yoke. The socket on the constant voltage power supply corresponds rated voltage 36V and 220V respectively, can select suitable socket according to the rated voltage difference of alternating current yoke, and power socket designs into 6, 7 assorted three or two plugs, need not to trade the power cord in addition or take off the line skin promptly, and disect insertion can carry out test work, and is simple and convenient, can reduce the detection alternating current yoke and use the degree of difficulty to and improve detection efficiency.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The technical content provided by the present invention is described in detail above, and the principle and the implementation of the present invention are explained in this document by applying specific examples, and the above description of the examples is only used to help understanding the method of the present invention and the core idea thereof; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. The multifunctional voltage-stabilized power supply for calibrating the alternating current magnetic yoke is characterized by comprising an ammeter and a voltmeter, wherein an electromagnetic yoke power supply slot is formed in the ammeter, the ammeter is connected with an output circuit of the electromagnetic power supply slot in series and is used for detecting the magnetizing current of an electromagnetic yoke externally connected with the electromagnetic yoke power supply slot; the voltmeter is connected with an output circuit of the electromagnetic yoke power supply slot in parallel and used for detecting the power supply voltage of the electromagnetic yoke externally connected with the electromagnetic yoke power supply slot.
2. The regulated power supply of claim 1, wherein said current meter and said voltage meter comprise:
a first ammeter and a 36V voltmeter, the 36V voltmeter being connected in parallel with a 36V output circuit, the first ammeter being connected in series with the 36V output circuit.
3. The regulated power supply of claim 1, wherein said electromagnet yoke power supply socket comprises:
the 36V five-hole power supply slot is connected with the output circuit and used for supplying 36V alternating current to the outside.
4. A regulated power supply according to claim 3 further comprising:
and the input end of the contact voltage regulator is connected with 220V alternating current, and the output end of the contact voltage regulator is connected with the 36V five-hole power supply slot and supplies power.
5. The regulated power supply of claim 4, further comprising:
and the fine adjustment knob is connected with the voltage regulation control end of the contact voltage regulator and is used for regulating the output voltage of the output end of the contact voltage regulator.
6. The regulated power supply of claim 5, further comprising:
and the speed reducer is positioned between the fine adjustment knob and the contact type voltage regulator, and is configured to reduce the adjusting speed of the fine adjustment knob to the contact type voltage regulator.
7. The regulated power supply of claim 1, wherein said current meter and said voltage meter further comprise:
a second ammeter and a 220V voltmeter, wherein the 220 voltmeter is connected in parallel with the 220V output circuit, and the 22V ammeter is connected in series with the 220V output circuit.
8. The regulated power supply of claim 1, further comprising:
and the working indicator lamp is connected in series with the input circuit of the stabilized voltage power supply.
9. The regulated power supply of claim 1, further comprising:
and the starting button is configured to control the on-off of the voltage-stabilized source output circuit connected with the electromagnetic yoke power supply slot through a contactor coil of the voltage-stabilized source output circuit connected with the electromagnetic yoke power supply slot in series.
10. The regulated power supply of claim 1, further comprising:
a stop button configured to control the on-off of the input power.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111065333.9A CN113884719B (en) | 2021-09-12 | 2021-09-12 | Multifunctional voltage-stabilized power supply for calibrating alternating current magnetic yoke |
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| CN202111065333.9A CN113884719B (en) | 2021-09-12 | 2021-09-12 | Multifunctional voltage-stabilized power supply for calibrating alternating current magnetic yoke |
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| CN113884719A true CN113884719A (en) | 2022-01-04 |
| CN113884719B CN113884719B (en) | 2024-02-27 |
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|---|---|---|---|---|
| US6316845B1 (en) * | 1999-11-05 | 2001-11-13 | Parker Research Corporation | Battery powered AC electromagnetic yoke for magnetic particle inspection |
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2021
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|---|---|---|---|---|
| US6316845B1 (en) * | 1999-11-05 | 2001-11-13 | Parker Research Corporation | Battery powered AC electromagnetic yoke for magnetic particle inspection |
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| Title |
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| 冯雪峰 等: "《JJF1458-2014磁轭式磁粉探伤机校准规范》", pages 2, Retrieved from the Internet <URL:https://www.doc88.com/p-9012567266812.html> * |
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| CN113884719B (en) | 2024-02-27 |
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