CN106525957A - Wireless alternating-current electromagnetic yoke flaw detector - Google Patents
Wireless alternating-current electromagnetic yoke flaw detector Download PDFInfo
- Publication number
- CN106525957A CN106525957A CN201510585764.6A CN201510585764A CN106525957A CN 106525957 A CN106525957 A CN 106525957A CN 201510585764 A CN201510585764 A CN 201510585764A CN 106525957 A CN106525957 A CN 106525957A
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- electromagnetic yoke
- cells
- inverter circuit
- flaw detection
- detection instrument
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Abstract
The invention provides a wireless alternating-current electromagnetic yoke flaw detector. The wireless alternating-current electromagnetic yoke flaw detector comprises a shell, an electromagnetic yoke iron core, a magnetic induction loop and a power module, wherein the electromagnetic yoke iron core is arranged in the shell, and the magnetic induction loop winds on the electromagnetic yoke iron core; the power module arranged in the shell comprises a battery pack, a battery pack protecting plate connected with the battery pack, an inversion circuit board electrically connected with the battery pack protecting plate, and a transformer electrically connected with the inversion circuit board; the power module is used for converting the direct currents of the battery pack into 220V alternating currents for the magnetic induction loop through the inversion circuit board and the transformer; the battery pack is further connected with a charging interface. The electromagnetic yoke flaw detector has the advantages that the power needed by the flaw detector is provided by the power module, a long wire for being connected with a power supply is not needed, and the flaw detector is convenient and easy to use.
Description
Technical field
The present invention relates to a kind of detection device, particularly relates to a kind of wireless communication electromagnetic yoke flaw detection instrument.
Background technology
Crack detector is the instrument for checking ironwork surface and its near surface flaw, be widely used in ship,
The various fields such as iron and steel, plant equipment, oil, aviation, to enter during its manufacture, installation, use
Row detection.Existing electromagnetic yoke flaw detection instrument generally needs the electric wire of the numerous length of traction, and keeps connecting with a power-supply device
Connect and can just be operated, thus can produce electric wire coiling at work, traction is bothered and using apart from limited etc.
Many inconvenience, it is necessary to improved.
The content of the invention
The present invention proposes a kind of wireless communication electromagnetic yoke flaw detection instrument, solves in prior art due to arranging electric wire
It is connected with power-supply device and causes the problems such as inconvenience.
The technical scheme is that what is be achieved in that：
A kind of wireless communication electromagnetic yoke flaw detection instrument, including a housing, the electromagnetic yoke iron core in the housing and
The magnetic induction loop being wound on the electromagnetic yoke iron core, also includes the power supply module in the housing, the electricity
Source module includes the battery pack protection plate that set of cells electrically connected with the set of cells and battery pack protection plate electricity
The inverter circuit plate of connection and the transformator electrically connected with the inverter circuit plate, the power supply module is for by electricity
The unidirectional current of pond group is changed into 220V alternating currents supply magnetic induction loop via inverter circuit plate and transformator and uses,
The set of cells is also associated with a charging inlet.
Preferred version is that the electromagnetic yoke flaw detection instrument also includes the illumination electrically connected with the set of cells of power supply module
Lamp, the illuminating lamp are LED.
Preferred version is that the housing is the hollow shell that 3D printing is formed, and which includes one in the horizontal direction simultaneously
The holding section of downward-sloping extension, interval are located at the horizontal segment below the holding section, are connected to holding section
Two linkage sections between two ends and horizontal segment two ends and respectively by the two ends of horizontal segment extend downwardly it is two vertical
Section, between the holding section and linkage section and between linkage section and horizontal segment, link position is connected with arc angling
Connect, the set of cells is contained in holding section, the battery pack protection plate and inverter circuit plate are contained in housing
A linkage section in, the transformator is contained in another linkage section of housing, the electromagnetic yoke iron core it is upper
It is partially housed in horizontal segment and the vertical section of housing.
Preferred version is, the battery pack protection plate includes plate body, be electrically connected on the plate body and with set of cells
The pad that connects, sampling resistor, protection chip, charging metal-oxide-semiconductor and electric discharge metal-oxide-semiconductor, the set of cells it is each
Battery cell is electrically connected with the pad on plate body, and or string in parallel with the printed circuit on plate body and pad composition
Connection relation, sampling resistor negative pole respectively with set of cells, electric discharge metal-oxide-semiconductor, protection chip are electrically connected,
The protection chip respectively with charging metal-oxide-semiconductor and electric discharge metal-oxide-semiconductor electrically connect, the protection chip also with set of cells
Electrical connection.
Preferred version is that the inverter circuit plate includes single-chip microcomputer and inverter circuit unit, the inverter circuit list
Unit is connected with the input of single-chip microcomputer by a temperature detecting unit, and the outfan of the single-chip microcomputer passes through PWM
Control unit is connected with inverter circuit unit, and the inverter circuit unit connects set of cells, the inverter circuit list
Unit is connected with single-chip microcomputer input by current/voltage detector unit, and the inverter circuit unit has switching tube,
The single-chip microcomputer is used for adjusting the switching tube ON time scale of the inverter circuit unit.
Preferred version is can be also connected with a filter between the inverter circuit unit and current/voltage detector unit
Ripple unit.
Preferred version is that the set of cells is lithium battery group.
Preferred version is that the line footpath of the magnetic induction loop is 0.2-0.3mm, and coil turn is 1800-2400 circles.
Preferred version is that electromagnetic yoke flaw detection instrument also includes the switch electrically connected with power supply module, to control to shine
The power supply of the break-make of bright lamp and electromagnetic yoke flaw detection instrument.
Beneficial effects of the present invention are：
Wireless communication electromagnetic yoke flaw detection instrument in the present invention provides the electric power needed for which by power supply module, need not
The longer electric wire being connected with power supply of traction, it is easy to use easy.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to implementing
Example or accompanying drawing to be used needed for description of the prior art are briefly described, it should be apparent that, describe below
In accompanying drawing be only some embodiments of the present invention, for those of ordinary skill in the art, do not paying
On the premise of going out creative work, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is the structural representation of wireless communication electromagnetic yoke flaw detection instrument of the present invention；
Fig. 2 is the top view of battery pack protection plate in Fig. 1；
Fig. 3 is the functional block diagram of inverter circuit plate in Fig. 1；
Fig. 4 is another angle schematic diagram of the vertical section part of electromagnetic yoke iron core in Fig. 1.
In figure：
100th, wireless communication electromagnetic yoke flaw detection instrument；10th, housing；20th, power supply module；30th, electromagnetic yoke iron core；
50th, magnetic induction loop；11st, hold section；12nd, horizontal segment；13rd, linkage section；15th, vertical section；60th, shine
Bright lamp；80th, switch；21st, set of cells；22nd, battery pack protection plate；23rd, inverter circuit plate；25th, become
Depressor；26th, charging inlet；220th, plate body；221st, pad；222nd, sampling resistor；225th, charging MOS
Pipe；226th, discharge metal-oxide-semiconductor；230th, single-chip microcomputer；231st, inverter circuit unit；232nd, temperature detection list
Unit；235th, PWM control units；236th, current/voltage detector unit；238th, filter unit；31st, it is horizontal
Section；33rd, indulge section；35th, 36, breach；37th, boss；38th, screw.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly
Chu, it is fully described by, it is clear that described embodiment is only a part of embodiment of the invention, rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creation
Property work under the premise of the every other embodiment that obtained, belong to the scope of protection of the invention.
As shown in figure 1, the wireless communication electromagnetic yoke flaw detection instrument 100 include a housing 10, located at the housing 10
Interior power supply module 20, the electromagnetic yoke iron core 30 below the power supply module 20 and it is wound in the electromagnetic yoke
Magnetic induction loop 50 on iron core 30.
The housing 10 is engineering plastics housing, and which adopts the hollow shell that 3D printing is formed, can both protect
The seal degree of card housing, improves the safety for using；Wireless communication electromagnetic yoke flaw detection instrument 100 can be mitigated again
Overall weight, convenient use, while the intensity and comfort of housing 10 can also be strengthened.The housing 10
Including a holding section 11 that is horizontally extending and being angled slightly downward setting, interval located at the holding section 11
Lower section horizontal segment 12, be connected to hold section 11 two ends and horizontal segment 12 two ends two linkage sections
13 and two vertical sections 15 that extended downwardly by the two ends of horizontal segment 12 respectively.The holding section 11 and linkage section
Between 13 and between linkage section 13 and horizontal segment 12, link position is connected with arc angling, in order to staff
Hold, so as to strengthen the convenience of operation.An illuminating lamp 60, the illumination is provided with below the horizontal segment
Lamp 60 is LED, to provide illumination as electromagnetic yoke flaw detection instrument, convenient that detection faces are observed, and is met
The requirement of magnetic powder inspection mark.The top for holding section 11 is additionally provided with and opening that power supply module 20 is electrically connected
80 are closed, to control the break-make of illuminating lamp 60 and the power supply of wireless communication electromagnetic yoke flaw detection instrument 100.
In the holding section 11 of housing 10 and linkage section 13, which includes being located at the bag of power supply module 20
Hold battery pack protection plate of the set of cells 21, bag in section 11 in a wherein linkage section 13 of housing 10
22 transformators 25 with inverter circuit plate 23, bag in another linkage section 13 of housing 10.The set of cells
21 is lithium battery group, and which is connected with a charging inlet 26, so that extraneous power supply charges to set of cells 21.Should
Charging inlet 26 is located at the connection position that the holding section 11 of housing 10 is provided with the linkage section 13 of transformator 25 with bag
The top put, which is arranged in housing 10 and is communicated with the external world.
Please refer to Fig. 2, the battery pack protection plate 22 is electrically connected with set of cells 21, it include plate body 220,
The pad 221 that electrically connects on the plate body 220 and with set of cells 21, sampling resistor 222, protection chip
(not shown), charging metal-oxide-semiconductor 225 and electric discharge metal-oxide-semiconductor 226.Each battery cell of the set of cells 21
Electrically connect with the pad 221 on plate body 220, and with plate body 220 on printed circuit and pad 221 constitute
Relation in parallel or series.The negative pole respectively with set of cells 21 of the sampling resistor 222, electric discharge metal-oxide-semiconductor 226,
Protection chip electrical connection.The protection chip is electrically connected with charging metal-oxide-semiconductor 225 and electric discharge metal-oxide-semiconductor 226 respectively
Connect.The protection chip is also electrically connected with set of cells 21.Under the control of protection chip, charging metal-oxide-semiconductor 225
It is electric with the playback of electric discharge 226 control circuit of metal-oxide-semiconductor, meanwhile, electric discharge metal-oxide-semiconductor 226 is according to sampling resistor
222 information of voltage for measuring determine whether electric discharge over-current phenomenon avoidance.When set of cells 21 charges, if arbitrarily
Threshold values of the voltage of one batteries monomer more than setting, charging metal-oxide-semiconductor 225 disconnects stops charging；Battery
When group 21 is discharged, if the voltage of any one batteries monomer is less than the threshold values for setting, discharge metal-oxide-semiconductor 226
Disconnection stops electric discharge；When there is no situation that the above needs protection circuit, charging metal-oxide-semiconductor 225
Close with electric discharge metal-oxide-semiconductor 226, set of cells 21 can normally be charged or discharge, with to battery
Group is protected.The battery pack protection plate 22 is electrically connected with illuminating lamp 60, makes set of cells 21 by flowing through electricity
An electric power part for pond group protection board 22 provides electric power for illuminating lamp 60.Another part electric power of set of cells 21
It is changed into 220V alternating currents supply magnetic induction loop 50 via inverter circuit plate 23 and transformator 25 to use.
Please refer to Fig. 3, the inverter circuit plate 23 is electrically connected with battery pack protection plate 22, and which includes list
Piece machine 230 and inverter circuit unit 231, the inverter circuit unit 231 by a temperature detecting unit 232 with
The input connection of single-chip microcomputer 230.The outfan of the single-chip microcomputer 230 passes through PWM control units 235
It is connected with inverter circuit unit 231.The inverter circuit unit 231 connects set of cells 21.The inverter circuit
Unit 231 is connected with 230 input of single-chip microcomputer by current/voltage detector unit 236.The inverter circuit
Unit 231 has switching tube.The single-chip microcomputer 230 adjusts the switching tube conducting of the inverter circuit unit 231
Time scale size is the size control ac output voltage of PWM duty cycle.The inverter circuit unit 231
A filter unit 238 can be also connected between current/voltage detector unit 236.During use, single-chip microcomputer 230
The conducting and shut-off of the switching tube of output PWM ripple control inverter circuits unit 231, makes the straight of set of cells 21
Stream input is converted into exchange and exports, then circuit filtering after filtering, the less alternating current of output harmonic wave content,
By 232 detection switch pipe temperature of temperature detecting unit, single-chip microcomputer 230 is fed back to, prevent that switching tube is overheated to be burnt out.
The magnitude of voltage of the detection exchange output of current/voltage detector unit 236, then have A/D samplings to be sent to single-chip microcomputer 230,
The output control signal again after related operation of single-chip microcomputer 230, controls stablizing for ac output voltage, electric current
The current value of the detection exchange output of voltage detection unit 236, is sent to single-chip microcomputer 230 and contrasts, if current value
It is excessive, current limliting process is carried out, with the safety for ensureing to export.
The electromagnetic yoke iron core 30 is folded to set by multiple stalloys side by side and is formed, and the thickness of each stalloy is
0.3-0.8mm.The electromagnetic yoke iron core 30 substantially " П " shape, which includes a level for being coated on housing 10
The two vertical sections 33 that crosspiece 31 and being extended by the two ends of the crosspiece 31 downward vertically respectively in section 12 is formed.This
In embodiment, the both sides on 31 top of crosspiece of electromagnetic yoke iron core 30 form the breach 35 of a triangle respectively, often
The Basolateral of one vertical section 33 is respectively equipped with vee 36, is not affecting wireless communication electromagnetic yoke flaw detection instrument
100 detection performances in the case of can less whole electromagnetic yoke iron core weight, so as to convenient use.
Please refer to Fig. 4, the bottom of the vertical section 33 of the electromagnetic yoke iron core 30 is the end of probe for detection,
The front and rear sides of the end of probe is sticked respectively a boss 37, the i.e. stalloy with electromagnetic yoke iron core 30
Orientation is consistent.The boss 37 is ferrite stainless bloom, its shape and 30 bottom of electromagnetic yoke iron core
The side view correspondence of end position, is sticked and is fixed on the both sides in front and back of 30 bottom of electromagnetic yoke iron core, to strengthen electricity
The intensity of 30 bottom of yoke iron core, is worn and torn with absorption surface during preventing use, so as to extend electromagnetic yoke
The service life of crack detector 100.In the present embodiment, the thickness of the boss 37 is 3mm, the electromagnetism
Two bosses 37 of 30 bottom of yoke core are fixed by a screw 38.
The magnetic induction loop 50 is wound in the top of each electromagnetic yoke iron core 30 respectively, and is contained in housing 10
In vertical section 15, each magnetic induction loop 50 adopts line footpath and is entwined for the wire of 0.2-0.3mm, compared to
The line footpath of magnetic induction loop of the prior art 50 is little, so as to strengthen the resistance of magnetic induction loop 50, to reduce magnetic
Electric current in sense coil 50, prevent heat cause greatly the interruption of work and the damage of electromagnetic yoke flaw detection instrument and
Affect being normally carried out for work, and saves energy.Meanwhile, in order to reach wireless communication electromagnetic yoke flaw detection instrument 100
Required magnetic field, adopts 50 number of turn of magnetic induction loop for 1800-2400 circles, i.e., than existing electromagnetism in the present embodiment
The scheme more than the magnetic induction loop number of turn used in yoke crack detector is supplying the magnetic field brought as electric current diminishes
Weaken, the size and the number of turn of 50 line footpath of magnetic induction loop when being embodied as, can be changed according to the actual requirements.
The wireless communication electromagnetic yoke flaw detection instrument 100 provides the electric power needed for which by power supply module 20, need not drag
The longer electric wire being connected with power supply of band, it is easy to use easy.When no electric power, charging inlet 26 can be passed through
Connection external power supply is charged, easy to operate.
Presently preferred embodiments of the present invention is the foregoing is only, it is not to limit the present invention, all at this
Within bright spirit and principle, any modification, equivalent substitution and improvements made etc. should be included in this
Within bright protection domain.
Claims (9)
1. a kind of wireless communication electromagnetic yoke flaw detection instrument, including a housing, the electromagnetic yoke iron core in the housing
And the magnetic induction loop being wound on the electromagnetic yoke iron core, it is characterised in that：Also include the electricity in the housing
Source module, the power supply module include the battery pack protection plate that set of cells electrically connected with the set of cells and should
The inverter circuit plate and the transformator electrically connected with the inverter circuit plate of battery pack protection plate electrical connection, the electricity
Source module is supplied for the unidirectional current of set of cells is changed into 220V alternating currents via inverter circuit plate and transformator
Use to magnetic induction loop, the set of cells is also associated with a charging inlet.
2. wireless communication electromagnetic yoke flaw detection instrument as claimed in claim 1, it is characterised in that：Also include and electricity
The illuminating lamp of the set of cells electrical connection of source module, the illuminating lamp is LED.
3. wireless communication electromagnetic yoke flaw detection instrument as claimed in claim 1, it is characterised in that：The housing is
The hollow shell that 3D printing is formed, which includes one in the horizontal direction and the holding section of downward-sloping extension, interval
Horizontal segment, two companies being connected between holding section two ends and horizontal segment two ends below the holding section
Connect section and two vertical sections for being extended downwardly by the two ends of horizontal segment respectively, between the holding section and linkage section and
Link position between linkage section and horizontal segment is connected with arc angling, and the set of cells is contained in holding section
Interior, the battery pack protection plate and inverter circuit plate are contained in a linkage section of housing, and the transformator is received
It is dissolved in another linkage section of housing, is partially housed in the horizontal segment of housing on the electromagnetic yoke iron core and erects
In straight section.
4. wireless communication electromagnetic yoke flaw detection instrument as claimed in claim 3, it is characterised in that：The set of cells
Protection board includes plate body, the pad electrically connected on the plate body and with set of cells, sampling resistor, protection core
Piece, charging metal-oxide-semiconductor and electric discharge metal-oxide-semiconductor, each battery cell and the pad on plate body of the set of cells are electrically connected
Connect, and with plate body on printed circuit and pad constitute relation in parallel or series, the sampling resistor respectively with
The negative pole of set of cells, electric discharge metal-oxide-semiconductor, protection chip electrical connection, the protection chip respectively with charging MOS
Pipe and metal-oxide-semiconductor electrical connection of discharging, the protection chip are also electrically connected with set of cells.
5. wireless communication electromagnetic yoke flaw detection instrument as claimed in claim 3, it is characterised in that：The inversion electricity
Road plate includes single-chip microcomputer and inverter circuit unit, and the inverter circuit unit passes through a temperature detecting unit and monolithic
The input connection of machine, the outfan of the single-chip microcomputer are connected with inverter circuit unit by PWM control units
Connect, the inverter circuit unit connects set of cells, the inverter circuit unit passes through current/voltage detector unit and list
Piece machine input connects, and the inverter circuit unit has switching tube, and the single-chip microcomputer is used for adjusting described inverse
Become the switching tube ON time scale of circuit unit.
6. wireless communication electromagnetic yoke flaw detection instrument as claimed in claim 4, it is characterised in that：The inversion electricity
A filter unit can be also connected between road unit and current/voltage detector unit.
7. the wireless communication electromagnetic yoke flaw detection instrument as any one of claim 1 to 6, its feature exist
In：The set of cells is lithium battery group.
8. the wireless communication electromagnetic yoke flaw detection instrument as any one of claim 1 to 6, its feature exist
In：The line footpath of the magnetic induction loop is 0.2-0.3mm, and coil turn is 1800-2400 circles.
9. wireless communication electromagnetic yoke flaw detection instrument as claimed in claim 2, it is characterised in that：Also include and electricity
The switch of source module electrical connection, to control the break-make of illuminating lamp and the power supply of electromagnetic yoke flaw detection instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510585764.6A CN106525957A (en) | 2015-09-15 | 2015-09-15 | Wireless alternating-current electromagnetic yoke flaw detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510585764.6A CN106525957A (en) | 2015-09-15 | 2015-09-15 | Wireless alternating-current electromagnetic yoke flaw detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106525957A true CN106525957A (en) | 2017-03-22 |
Family
ID=58349141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510585764.6A Pending CN106525957A (en) | 2015-09-15 | 2015-09-15 | Wireless alternating-current electromagnetic yoke flaw detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106525957A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113884719A (en) * | 2021-09-12 | 2022-01-04 | 中车大连机车车辆有限公司 | Multifunctional voltage-stabilized power supply for AC magnetic yoke calibration |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2329978Y (en) * | 1998-05-15 | 1999-07-21 | 宋晓丹 | Universal strong-magnetic force magnetic powder flaw detection pliers |
| CN2718577Y (en) * | 2003-09-25 | 2005-08-17 | 辽河石油勘探局 | Portable flaw detector for drilling tool |
| CN201518014U (en) * | 2009-11-04 | 2010-06-30 | 河南科技大学 | Multifunctional portable magnetic particle defect detector |
| CN202330363U (en) * | 2011-12-12 | 2012-07-11 | 李博 | Portable pulsed magnetic field flaw detector |
| CN202330360U (en) * | 2011-12-12 | 2012-07-11 | 李博 | Portable chargeable alternating current magnetic field flaw detector |
| CN103105430A (en) * | 2011-11-10 | 2013-05-15 | 江苏赛福探伤设备制造有限公司 | Micro alternating current magnet yoke flaw detector |
| CN203192900U (en) * | 2013-05-07 | 2013-09-11 | 浙江努奥罗新能源科技有限公司 | Lithium battery protection board |
| CN103543198A (en) * | 2013-11-05 | 2014-01-29 | 广西壮族自治区特种设备监督检验院 | Rotary control magnet yoke type permanent magnet flaw detector |
| CN203745418U (en) * | 2013-12-09 | 2014-07-30 | 济宁鲁科检测器材有限公司 | Portable invertible alternating current/direct current (AC/DC) magnetic field flaw detector |
| CN204165933U (en) * | 2014-09-01 | 2015-02-18 | 郝建国 | Electromagnetic yoke flaw detection instrument |
| CN204168206U (en) * | 2014-10-30 | 2015-02-18 | 江苏东润光伏科技有限公司 | Lithium battery light storage electricity generation system inverter circuit |
-
2015
- 2015-09-15 CN CN201510585764.6A patent/CN106525957A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2329978Y (en) * | 1998-05-15 | 1999-07-21 | 宋晓丹 | Universal strong-magnetic force magnetic powder flaw detection pliers |
| CN2718577Y (en) * | 2003-09-25 | 2005-08-17 | 辽河石油勘探局 | Portable flaw detector for drilling tool |
| CN201518014U (en) * | 2009-11-04 | 2010-06-30 | 河南科技大学 | Multifunctional portable magnetic particle defect detector |
| CN103105430A (en) * | 2011-11-10 | 2013-05-15 | 江苏赛福探伤设备制造有限公司 | Micro alternating current magnet yoke flaw detector |
| CN202330363U (en) * | 2011-12-12 | 2012-07-11 | 李博 | Portable pulsed magnetic field flaw detector |
| CN202330360U (en) * | 2011-12-12 | 2012-07-11 | 李博 | Portable chargeable alternating current magnetic field flaw detector |
| CN203192900U (en) * | 2013-05-07 | 2013-09-11 | 浙江努奥罗新能源科技有限公司 | Lithium battery protection board |
| CN103543198A (en) * | 2013-11-05 | 2014-01-29 | 广西壮族自治区特种设备监督检验院 | Rotary control magnet yoke type permanent magnet flaw detector |
| CN203745418U (en) * | 2013-12-09 | 2014-07-30 | 济宁鲁科检测器材有限公司 | Portable invertible alternating current/direct current (AC/DC) magnetic field flaw detector |
| CN204165933U (en) * | 2014-09-01 | 2015-02-18 | 郝建国 | Electromagnetic yoke flaw detection instrument |
| CN204168206U (en) * | 2014-10-30 | 2015-02-18 | 江苏东润光伏科技有限公司 | Lithium battery light storage electricity generation system inverter circuit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113884719A (en) * | 2021-09-12 | 2022-01-04 | 中车大连机车车辆有限公司 | Multifunctional voltage-stabilized power supply for AC magnetic yoke calibration |
| CN113884719B (en) * | 2021-09-12 | 2024-02-27 | 中车大连机车车辆有限公司 | Multifunctional voltage-stabilized power supply for calibrating alternating current magnetic yoke |
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Application publication date: 20170322 |
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