CN113884719B - Multifunctional voltage-stabilized power supply for calibrating alternating current magnetic yoke - Google Patents
Multifunctional voltage-stabilized power supply for calibrating alternating current magnetic yoke Download PDFInfo
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- CN113884719B CN113884719B CN202111065333.9A CN202111065333A CN113884719B CN 113884719 B CN113884719 B CN 113884719B CN 202111065333 A CN202111065333 A CN 202111065333A CN 113884719 B CN113884719 B CN 113884719B
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 33
- 239000003638 chemical reducing agent Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 description 12
- 230000000087 stabilizing effect Effects 0.000 description 9
- 238000010586 diagram Methods 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
- 238000012360 testing method Methods 0.000 description 2
- 206010014357 Electric shock Diseases 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 239000004020 conductor Substances 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
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Classifications
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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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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Magnetic Treatment Devices (AREA)
- Control Of Voltage And Current In General (AREA)
Abstract
The multifunctional voltage-stabilized power supply for the calibration of the alternating current magnetic yoke comprises 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 yoke power supply slot and is used for detecting magnetizing current of an electromagnetic yoke externally connected with the electromagnetic yoke power supply slot; the voltmeter is connected with the output circuit of the electromagnetic yoke power supply slot in parallel and is 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 of the electromagnetic yoke when the multifunctional voltage-stabilized power supply is used due to mismatching of the connection mode of the magnetic yoke in the prior art, provides a multifunctional voltage-stabilized power supply for the electromagnetic yokes with different voltages or different interface types for supplying power, and has a voltage regulating function and can flexibly adapt the working voltage of the electromagnetic yokes.
Description
Technical Field
The invention belongs to the field of electric power, and particularly relates to a multifunctional voltage-stabilizing power supply for calibrating an alternating current magnetic yoke.
Background
In order to ensure the accuracy and reliability of the alternating current magnetic yoke on the workpiece flaw detection result, the magnetizing current of the electromagnetic yoke needs to be detected according to the requirements of the magnetic yoke type magnetic particle flaw detector calibration standard JJF 1458-2014. When the alternating current magnetic yoke performs magnetic powder inspection, the workpiece is magnetized by alternating current 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 magnetizing intensity, and is also one of important parameters for judging the performance of the alternating current magnetic yoke, so that the calibration of the magnetizing current of the alternating current magnetic yoke is very important. In the current detection method of the alternating current magnetic yoke, the alternating current magnetic yoke is connected to the voltage-stabilized power supply, and the existing voltage-stabilized power supply on the market is not directly applicable to a socket of the alternating current magnetic yoke, so that when the voltage-stabilized power supply is connected in the calibration process, an electromagnetic yoke power supply wire needs to be disconnected and is wound on an output port of the voltage-stabilized power supply through an internal metal wire for connection. However, the method cannot directly measure the magnetizing current value of the electric magnetic yoke, the insulating rubber of the power line of the alternating current magnetic yoke is required to be pulled out to be in a working state, then a clamp ammeter is used for detecting the conductor in the pulled-out insulating rubber, and the current value of the clamp ammeter is the magnetizing current value of the alternating current magnetic yoke. The measurement result obtained by the method has large systematic error, can cause irreversible damage to the electromagnetic yoke, reduces the service life of the electromagnetic yoke, has the possibility of electric leakage in the daily use process of the electromagnetic yoke, and increases the electric shock risk of operators.
Therefore, there is a need to provide a voltage regulated power supply that is friendly to the electromagnetic yoke to reduce losses to the electromagnetic yoke and to address the personal injury to the operator from electrical leakage 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 an electromagnetic yoke in a working environment and personal injury to workers due to the damage of the electromagnetic yoke, and comprises 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 yoke 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 the output circuit of the electromagnetic yoke power supply slot in parallel and is 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 ammeter and voltmeter 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 present invention, the electromagnetic yoke power supply slot includes:
the 36V five-hole power supply slot is connected with the output circuit and used for providing 36V alternating current to the outside.
In some embodiments of the invention, further comprising:
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 tuning knob is connected with the voltage regulating control end of the contact voltage regulator and used for regulating the output voltage of the output end of the contact voltage regulator.
In some embodiments of the invention, further comprising:
the speed reducer is positioned between the fine tuning knob and the contact type voltage regulator and is configured to reduce the adjusting speed of the fine tuning knob to the contact type voltage regulator.
In some embodiments of the invention, the ammeter and voltmeter further comprise:
and the second ammeter and the 220V voltmeter are connected in parallel with the 220V output circuit, and the second ammeter is connected in series with the 220V output circuit.
In some embodiments of the invention, further comprising:
the work indicator lamp is connected in series with the input circuit of the stabilized voltage supply.
In some embodiments of the invention, further comprising:
the starting button is configured to control on-off of the voltage-stabilizing source output circuit connected with the electromagnetic yoke power supply slot through the contactor coil connected with the voltage-stabilizing source output circuit connected with the electromagnetic yoke power supply slot in series.
In some embodiments of the invention, further comprising:
and the stop button is configured to control the on-off of the input power supply.
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 of the electromagnetic yoke when the multifunctional voltage-stabilized power supply is used due to mismatching of the connection mode of the magnetic yoke in the prior art, provides a multifunctional voltage-stabilized power supply for the electromagnetic yokes with different voltages or different interface types for supplying power, and has a voltage regulating function and can flexibly adapt the working voltage of the electromagnetic yokes.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are necessary for the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention and that other embodiments may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a regulated power supply 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 will be 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 calibrating an ac magnetic yoke, which comprises 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 yoke power supply slot and is used for detecting magnetizing current of an electromagnetic yoke externally connected with the electromagnetic yoke power supply slot; the voltmeter is connected with the output circuit of the electromagnetic yoke power supply slot in parallel and is 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 ammeter and the voltmeter are displayed on a display screen as shown in fig. 1 or 2, each ammeter and voltmeter corresponds to one electromagnetic yoke power supply slot 6 or 7, and the magnetizing current of the electromagnetic yoke connected to the electromagnetic yoke power supply slot 6 or 7 is detected and displayed, respectively.
In some embodiments of the invention, the ammeter and voltmeter 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 is connected in series with the 36V circuit, and a 36V voltmeter is connected in parallel, as shown in the ammeter 1 in fig. 1, and the first ammeter and the 36V voltmeter are combined and displayed in the ammeter 1.
In some embodiments of the invention, the electromagnetic yoke power supply slot comprises:
the 36V five-hole power supply slot 6 is connected with the output circuit and used for providing 36V alternating current to the outside.
In the present embodiment, the output of the ac 36V voltage regulator circuit in the voltage regulator 10 is realized by the five-hole electromagnetic yoke power supply slot 6. The five-hole power supply slot 6 can support the electric yoke of the three-hole plug and the electric yoke of the two-hole plug, wherein the electric yoke of the 3-hole plug can have a grounding function, and the use electric safety of the electric yoke is further ensured.
In some embodiments of the invention, further comprising:
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 voltage stabilizing circuit in the voltage stabilizing power supply 10 further includes a contact time voltage regulator 12 for converting 220V ac into 36V ac, the input end of the contact voltage regulator is 220V ac, and the output end is 36V to 220V voltage stabilizing power supply, and the output is performed through the slot 6 in fig. 1. In actual use, the voltage regulated to be specified by the contact voltage regulator 12 can be output to the connected electric magnetic yoke as a voltage stabilizing source according to the requirement.
In some embodiments of the invention, further comprising:
and the fine tuning 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 this embodiment, as shown in fig. 1, the regulated power supply 10 further includes a fine tuning knob 8 for adjusting the output voltage of the regulated power supply 10. The fine tuning knob 8 is connected with the voltage regulating control end of the contact voltage regulator 12 in the stabilized voltage supply 10, and drives the voltage regulating control end of the contact voltage regulator 12 to displace when the fine tuning knob 8 rotates so as to change the output voltage of the contact voltage regulator 12.
In some embodiments of the invention, further comprising:
the speed reducer is positioned between the fine tuning knob and the contact type voltage regulator and is configured to reduce the adjusting speed of the fine tuning knob 8 to the contact type voltage regulator 12.
In this embodiment, a speed reducer is further disposed between the fine tuning knob 8 and the contact voltage regulator 12, and the speed reducer can more accurately regulate the low voltage output. The change of rotation of the fine tuning knob 8 at the voltage regulating control end of the contact voltage regulator is reduced.
In some embodiments of the invention, the ammeter and voltmeter further comprise:
the second ammeter and 220V voltmeter, 220 voltmeter and 220V output circuit parallel connection, 22V ammeter and 220V output circuit series connection.
In this embodiment, as shown in fig. 1, the regulated power supply 10 further includes a 220V ammeter 2, where the ammeter 2 is provided with a 220V ammeter and an ammeter respectively. And a 220V voltmeter is connected in parallel with a 220V voltage stabilizing output circuit connected with the power supply slot 7, and a 220V voltmeter is connected in series with a 220V voltage stabilizing output circuit connected with the power supply slot 7.
In some embodiments of the invention, further comprising:
and the working indicator lamp 3 is connected in series with the input circuit of the stabilized voltage supply.
In this 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-stabilizing source output circuit connected with the electromagnetic yoke power supply slot through the contactor coil connected with the voltage-stabilizing 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 has been closed and energized), the contactor coil 13 operates to generate a magnetic field, and further the contact-type auxiliary normally open points 14, 15, and 16 are closed by traction of the magnetic field. At this time, the operation indicator lamp 3 is normally on by the circuit conduction, and the voltmeters V1 and V2 shown in fig. 2 show that the voltages of the power supply slot 6 and the power supply slot 7 are 36V and 220V, respectively. And is given a display by a certain position of the current voltmeters 1 and 2. When the power supply slot 6 or 7 is connected to the electric yoke and forms a closed loop, the corresponding current is displayed on the ammeter 1 or 2.
The method comprises the following steps: after the alternating current magnetic yoke is electrified, two magnetic poles act on the surface of a standard test block, a magnetic field is generated between the two magnetic poles of the alternating current magnetic yoke, the alternating current magnetic yoke is in a working state, and the current value displayed by an ammeter voltmeter on the multifunctional voltage stabilizing source special 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 space positions of the contact coil 13 and the contact auxiliary normally open points 14, 15, and 16 in practice. In practical application, the contact coil 13 and the contact auxiliary normally open points 14, 15 and 16 are closely distributed, so that the magnetic field generated by the contact coil 13 can close the switches of the contact auxiliary normally open points 14, 15 and 16.
In some embodiments of the invention, further comprising:
and a stop button 5, wherein the stop button 5 is configured to control the on-off of an input power supply.
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 as to ensure the decoupling of the start button 4 and the voltage-stabilizing output circuit, purify the current interference of the voltage-stabilizing output circuit due to the switch circuit, and improve the anti-interference capability of the circuit. If the contact auxiliary normally open point of the regulated output circuit cannot be opened due to a contact coil failure or other reasons, the input of the power supply of the regulated power supply 10 can be cut off by stopping the button 5. In normal use, the stop button is in a closed state, and the voltage stabilizing output circuit is not conducted as long as the working indicator lamp 3 is not on. The process is quickly powered down by stopping the button 5 once an abnormality occurs.
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 of the electromagnetic yoke when the multifunctional voltage-stabilized power supply is used due to mismatching of the connection mode of the magnetic yoke in the prior art, provides a multifunctional voltage-stabilized power supply for the electromagnetic yokes with different voltages or different interface types for supplying power, and has a voltage regulating function and can flexibly adapt the working voltage of the electromagnetic yokes. The multifunctional voltage stabilizing source for the calibration of the alternating current magnetic yoke adopts a contact voltage regulator to regulate voltage, and a speed reducer is used for connecting a fine tuning knob, so that the voltage output of the low voltage can be regulated more accurately. Two ampere voltmeters arranged on the stabilized voltage supply correspond to rated voltages 36V and 220V respectively and are used for achieving the purpose of detecting magnetizing current of an alternating current magnetic yoke. The socket on the stabilized voltage supply corresponds rated voltage 36V and 220V respectively, can select suitable socket according to the rated voltage difference of alternating current magnetic yoke, and power socket designs into 6, 7 assorted three or two plugs, need not to trade the power cord or take off the line skin promptly, and direct insertion can test work, and is simple and convenient, can reduce the detection alternating current magnetic yoke and use the degree of difficulty to improve detection efficiency.
Finally, it is further noted that relational terms such as first and second, and the like are 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. Moreover, 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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing has outlined rather broadly the more detailed description of the invention in order that the detailed description of the invention that follows may be better understood, and in order that the present principles and embodiments may be better understood; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present invention, the present description should not be construed as limiting the present invention in view of the above.
Claims (8)
1. The multifunctional voltage-stabilized power supply for calibrating the alternating-current magnetic yoke is characterized by comprising an ammeter, a voltmeter, an electromagnetic yoke power supply slot, a start button and a stop button, wherein the ammeter is connected in series with an output circuit of the electromagnetic yoke power supply slot and is used for detecting magnetizing current of an electromagnetic yoke externally connected with the electromagnetic yoke power supply slot; the voltmeter is connected in parallel with an output circuit of the electromagnetic yoke power supply slot and is used for detecting the power supply voltage of an electromagnetic yoke externally connected with the electromagnetic yoke power supply slot;
the electromagnetic yoke power supply slot is connected with the output circuit to provide alternating current;
the stabilized power supply output circuit is externally connected with a contactor coil, the starting button is connected between the contactor coil and the stabilized power supply output circuit, and the starting button is configured to control the on-off of the stabilized power supply output circuit through the contactor coil;
the stop button is connected between the start button and an input circuit of the stabilized power supply, and the stop button is configured to control on-off of the input power supply.
2. The regulated power supply of claim 1, wherein said ammeter and said voltmeter 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 the electromagnetic yoke power supply slot comprises:
the 36V five-hole power supply slot is connected with the output circuit and used for providing 36V alternating current to the outside.
4. The regulated power supply of claim 3, further comprising:
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 tuning knob is connected with the voltage regulating control end of the contact voltage regulator and 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:
the speed reducer is positioned between the fine tuning knob and the contact type voltage regulator and is configured to reduce the adjusting speed of the fine tuning knob to the contact type voltage regulator.
7. The regulated power supply of claim 1, wherein said ammeter and said voltmeter further comprise:
and the second ammeter and the 220V voltmeter are connected in parallel with the 220V output circuit, and the second ammeter is connected in series with the 220V output circuit.
8. The regulated power supply of claim 1, further comprising:
the work indicator lamp is connected in series with the input circuit of the stabilized voltage supply.
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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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| Application Number | Priority Date | Filing Date | Title |
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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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| Publication Number | Publication Date |
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| CN113884719A CN113884719A (en) | 2022-01-04 |
| CN113884719B true 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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| CN106525957A (en) * | 2015-09-15 | 2017-03-22 | 郝建国 | Wireless alternating-current electromagnetic yoke flaw detector |
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2021
- 2021-09-12 CN CN202111065333.9A patent/CN113884719B/en active Active
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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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| CN105680618A (en) * | 2014-11-18 | 2016-06-15 | 扬州市鑫源电气有限公司 | Novel energy-saving induction voltage regulator |
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| 蓄电池供电式交流电磁轭磁粉检测灵敏度的补偿;林锡忠;《无损检测》;第35卷(第6期);52-54 * |
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| CN113884719A (en) | 2022-01-04 |
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