CN103176061A - Device and method for testing coil - Google Patents
Device and method for testing coil Download PDFInfo
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- CN103176061A CN103176061A CN2011104612751A CN201110461275A CN103176061A CN 103176061 A CN103176061 A CN 103176061A CN 2011104612751 A CN2011104612751 A CN 2011104612751A CN 201110461275 A CN201110461275 A CN 201110461275A CN 103176061 A CN103176061 A CN 103176061A
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Abstract
The invention discloses a device and a method for testing a coil. The device for testing the coil comprises a fixing unit, a metal jig and a reference coil. The fixing unit is used for fixing the coil to be tested. The metal jig is fixedly assembled on the fixing unit, penetrates through the coil to be tested and is used for inducing reference signals on the coil to be tested. The reference coil is fixedly assembled on the fixing unit, the metal jig penetrates through the reference coil, and the reference coil is used for converting the reference signals, which are induced by the metal jig, on the coil to be tested into output signals.
Description
Technical field
The invention relates to a kind of proving installation and method, and particularly relevant for a kind of coil measurement device and method.
Background technology
Development along with electronics technology, it is stricter that the demand of the precision of various electronic components also just becomes, wherein, the loop product that is widely used among the electronic motor field can be by a few to tens thousand of circles, so the checking of the coil turn of loop product just become important test event because of its coil turn scope.
Known coil number of turn proving installation is in treating that test coil adds reference signal, and the copper post by proving installation and treat electromagnetic induction between test coil then is to obtain voltage or current measurement value.Yet, along with the increase of coil turn to be measured, make the increase of the corresponding turn ratio for the treatment of test coil and copper post of the measured voltage of testing tool or current measurement value and reduce.When coil turn to be measured arrived thousands of or tens thousand of circle, testing tool that must be by high accurancy and precision can measured voltage or the current value of interpretation, and measuring error is also along with coil turn rising to be measured and increase.
Therefore, known technology coil number of turn proving installation and method of testing still have the problem that above-mentioned needs overcome.
Summary of the invention
The present invention measures precision and reduces testing cost to improve for disclosing a kind of coil measurement device and method.
Therefore, an aspect of of the present present invention is to provide a kind of coil measurement device, comprises fixed cell, metal fixture and reference coil.Fixed cell is in order to fixedly to treat test coil.Metal fixture configuration is fixed on fixed cell, and metal fixture passes through treats test coil, treats reference signal on test coil in order to induction.Reference coil configuration is fixed on fixed cell, and reference coil passed through by metal fixture, is converted to output signal in order to the reference signal on test coil for the treatment of that metal fixture is responded to.
According to the first embodiment of the present invention, wherein fixed cell is in order to will treat that test coil, metal fixture and reference coil fix, and to make metal fixture pass through to treat the middle openwork part of test coil and reference coil.
According to the second embodiment of the present invention, wherein reference coil with treat that the turn ratio of test coil is the ratio that determines output signal and reference signal.
According to the third embodiment of the present invention, wherein the turn ratio of reference coil and metal fixture is to adjust according to the measurement precision of the testing tool that receives output signal.
According to the fourth embodiment of the present invention, wherein metal fixture is metal cartridge or plain conductor.
Another aspect of the present invention is to provide a kind of coil measurement method, comprises step as follows.Provide reference signal to treating test coil.By metal fixture and treat magnetic Field Coupling between test coil, treat the reference signal of test coil with induction.By the magnetic Field Coupling between reference coil and metal fixture, take the reference signal for the treatment of test coil responded to of conversion metal fixture as output signal.
According to the fifth embodiment of the present invention, above-mentioned coil measurement method also comprises fixedly treats in test coil, metal fixture and reference coil at least one, make metal fixture pass through to treat the middle openwork part of test coil and reference coil, the signal of being responded to the stabilizing magnetic field coupling.
According to the sixth embodiment of the present invention, wherein the ratio between output signal and reference signal is by reference coil and treats that the turn ratio between test coil determines.
According to the seventh embodiment of the present invention, above-mentioned coil measurement method also comprises by testing tool measures output signal, with the output signal value of reading that shows that coil turn to be measured is corresponding.
According to the eighth embodiment of the present invention, the turn ratio that above-mentioned coil measurement method also comprises by reference coil and metal fixture is selected, and adjusting the output area of output signal, and meets the measurement precision of testing tool.
Therefore, use and the invention has the advantages that and utilize reference coil and metal fixture or reference coil and the turn ratio adjustment for the treatment of between test coil, the testing cost of purchasing with the measurement precision that improves coil measurement and reduction high accurancy and precision testing tool.
Description of drawings
For above and other purpose of the present invention, feature, advantage and embodiment can be become apparent, appended the description of the drawings is as follows:
Fig. 1 is the schematic diagram that illustrates according to a kind of coil measurement device of one embodiment of the present invention;
Fig. 2 is the schematic flow sheet that illustrates according to a kind of coil measurement method of one embodiment of the present invention.
[primary clustering symbol description]
110: fixed cell
120: metal fixture
121: mobile device
130: reference coil
131～132: end points
210: treat test coil
211～212: end points
220: testing tool
2010～2040: step
Embodiment
Below will and be described in detail with accompanying drawing and clearly demonstrate spirit of the present invention, have in technical field under any and know that usually the knowledgeable is after understanding preferred embodiment of the present invention, when can be by the technology of teachings of the present invention, change and modification, it does not break away from spirit of the present invention and scope.
Please refer to Fig. 1.Fig. 1 is the schematic diagram that illustrates according to a kind of coil measurement device of one embodiment of the present invention.Above-mentioned coil measurement device comprises fixed cell 110, metal fixture 120 and reference coil 130.Fixed cell 110 is in order to fixedly to treat test coil 210.Metal fixture 120 configuration is fixed on fixed cell 110, and metal fixture 120 passes through treats test coil 210, treats reference signal on test coil 210 in order to induction.Reference coil 130 configuration is fixed on fixed cell 110, and reference coil 130 passed through by metal fixture 120, is converted to output signal in order to the reference signal on test coil 210 for the treatment of that metal fixture 120 is responded to.
In an embodiment of present embodiment, fixed cell 110 is fixing with reference coil 130 in order to will treat test coil 210, metal fixture 120, makes metal fixture 120 pass through to treat the middle openwork part of test coil 210 and reference coil 130.
For instance, the fixed cell 110 of coil measurement device can comprise the coil holder, fixedly to treat test coil 210, metal fixture 120 and reference coil 130, make metal fixture 120 to pass through to treat the middle openwork part of test coil 210 and reference coil 130, to obtain stable electromagnetic induction signal.In the present embodiment, metal fixture 120 can comprise mobile device 121, and above-mentioned mobile device 121 can be any one in movable metallic test folder and movable metal terminal, to open or to close metal fixture 120.When mobile device 121 is opened, can will treat that the middle openwork part of test coil 210 with reference coil 130 is inserted in metal fixture 120, and fixedly treat test coil 210 and reference coil 130 by the coil holder that fixed cell 110 provides.Then, mobile device 121 cuts out, make metal fixture 120 and treat between test coil 210 to form the electromagnetic induction loop, and another electromagnetic induction of formation loop between metal fixture 120 and reference coil 130.It should be noted that, metal fixture 120 in the present embodiment can be considered the coil device with individual pen coiling pattern.
Then, add the fixing reference signal that exchanges between the end points 211 for the treatment of test coil 210 and end points 212, and by metal fixture 120 and another electromagnetic induction loop for the treatment of between test coil 210 formation between the electromagnetic induction loop that forms and metal fixture 120 and reference coil 130, above-mentioned reference signal is converted to corresponding reference coil 130 and the output signal for the treatment of test coil 210 coil ratios on the end points 131 of reference coil 130 and end points 132, and provides and output signal to testing tool 220.
In an embodiment of present embodiment, reference coil 130 with treat that the turn ratio of test coil 210 is the ratio that determines output signal and reference signal.For example, above-mentionedly treat that test coil 210 can be the ring-like inductance with 70 circle coilings, reference coil 130 can be the standard coil with 100 circle coilings.Therefore, if be added in until the end points 211 of test coil 210 and the reference signal between end points 212 when being frequency 20KHz amplitude size for the alternating voltage of 1V, the end points 131 of reference coil 130 and the output signal on end points 132 be by reference coil 130 and treat that the turn ratio 100/70 between test coil 210 is determined, and by above-mentioned electromagnetic induction with the amplitude size for the reference signal of 1V convert to the amplitude size be 1.42857V output signal to testing tool 220.
In an embodiment of present embodiment, reference coil 130 is to adjust according to the measurement precision of the testing tool 220 that receives output signal with the turn ratio of metal fixture 120.For example, treat that test coil 210 can be the ring-like inductance with 70 circle coilings, and to add upper frequency between end points 211 and end points 212 be that the 20KHz amplitude is big or small is the alternating voltage reference signal of 1V.When reference coil 130 is that when having the standard coil of 1 circle coiling, the real output signal amplitude size of changing by electromagnetic induction is 0.01428V.When if the precision of testing tool 220 only arrives following the 3rd of radix point, the output amplitude size that arrives of 220 interpretations of testing tool is 0.014V.Under identical reference coil 130 conditions, when until test coil 210 when having the ring-like inductance of 69 circle coilings, the real output signal amplitude size of changing by electromagnetic induction is 0.01428V, and the output amplitude size that arrives of 220 interpretations of testing tool still is 0.014V.So the precision of testing tool 220 may cause treating the interpretation mistake of the coil turn of test coil 210.
At this moment, if change into reference to coil 130 in the situation of the standard coil with 100 circle coilings, when until test coil 210 when having the ring-like inductance of 70 circle coilings, the output amplitude size that 220 interpretations of testing tool are arrived is 1.428V.When until test coil 210 when having the ring-like inductance of 69 circle coilings, the output amplitude size that arrives of 220 interpretations of testing tool is 1.449V.This shows, in the present embodiment can be by adjusting the coil turn of reference coil 130, and obtain suitable output signal range, meeting the measurement precision of testing tool 220, and can reduce the testing cost of buying high accurancy and precision testing tool 220.
In an embodiment of present embodiment, metal fixture 120 is metal cartridge or plain conductor.For example, this metal fixture 120 can be any one in copper post, iron prop, silver-colored post, iron wire and copper cash, make metal fixture 120 and treat between test coil 210 to form the electromagnetic induction loop, and another electromagnetic induction of formation loop between metal fixture 120 and reference coil 130.
Please be simultaneously with reference to Fig. 1 and Fig. 2.Fig. 2 is the schematic flow sheet that illustrates according to a kind of coil measurement method of one embodiment of the present invention.Above-mentioned coil measurement method is to utilize same as shown in Figure 1 or similar coil measurement device, and to treat the coil turn test of test coil 210, it is as follows that it comprises step.
In step 2010, provide reference signal to treating test coil 210.For example, frequency can be provided is 20KHz amplitude size for the alternating voltage of 1V to treating that test coil 210 is as with reference to signal.It should be noted that, the coil turn for the treatment of test coil 210 in the present embodiment can be 70 circles, and the coil turn of reference coil 130 can be 100 circles.
In step 2020, by metal fixture 120 and treat magnetic Field Coupling between test coil 210, treat the reference signal of test coil 210 with induction.For example, can and treat electromagnetic induction between test coil 210 by metal fixture 120, will treat that the reference signal on test coil 210 is induced on metal fixture 120.It should be noted that, the signal intensity of sensing on metal fixture 120 this moment is to correspond to metal fixture 120 and the turn ratio for the treatment of test coil 210, so the signal intensity of sensing on metal fixture 120 only has 1/70 of reference signal.
In step 2030, by the magnetic Field Coupling between reference coil 130 and metal fixture 120, take the reference signal for the treatment of test coil 210 responded to of conversion metal fixture 120 as output signal.For example, can be by the electromagnetic induction between reference coil 130 and metal fixture 120, with the induction of signal on metal fixture 120 to reference coil 130, and can amplify 100 times of signals on metal fixture 120 by reference coil 130 and the turn ratio 100/1 of metal fixture 120, take the output signal of 100/70 times (the amplitude size is as 1.42857V) that produces reference signal (the amplitude size is as 1V) to testing tool 220.
In an embodiment of present embodiment, above-mentioned coil measurement method also comprises fixedly treats in test coil 210, metal fixture 120 and reference coil 130 at least one, make metal fixture 120 pass through to treat middle the openwork part of test coil 210 and reference coil 130, the signal that is coupled and is responded to stabilizing magnetic field.For example, can be before the step 2010 of above-mentioned coil measurement method, utilization comprises the fixed cell 110 of coil holder, fixedly to treat test coil 210, metal fixture 120 and reference coil 130, make metal fixture 120 to pass through to treat the middle openwork part of test coil 210 and reference coil 130, to obtain stable electromagnetic induction signal.
In an embodiment of present embodiment, the ratio between output signal and reference signal is by reference coil 130 and treats that the turn ratio between test coil 210 determines.For example, when until test coil 210 when having the ring-like inductance of 70 circle coilings, reference coil 130 that can be by having 100 circle coilings and treat turn ratio between test coil 210, take the ratio between decision output signal and reference signal as 100/70, and can by the electromagnetic induction between above-mentioned coil and metal fixture 120, the amplitude size for converting the amplitude size to, the reference signal of 1V be the output signal of 1.42857V.It should be noted that, can and treat by reference coil 130 that also the turn ratio between test coil 210 selects, to adjust corresponding output signal strength scope.
In an embodiment of present embodiment, above-mentioned coil measurement method also comprises by testing tool 220 measures output signal, treats with demonstration output signal value of reading that test coil 210 numbers of turn are corresponding, as shown in step 2040.For example, can be by curtage value of reading of testing tool 220 interpretation output signals, and treat the coil turn of test coil 210 according to the value of the reading judgement of above-mentioned output signal.
In an embodiment of present embodiment, above-mentioned coil measurement method also comprises by reference coil 130 and the turn ratio of metal fixture 120 to be selected, and adjusting the output area of output signal, and meets the measurement precision of testing tool 220.For example, treat that test coil 210 can be the ring-like inductance with 70 circle coilings, and in treating that test coil 210 adds upper frequency 20KHz amplitude size and is the reference signal of 1V.When reference coil 130 is that when having the standard coil of 1 circle coiling, the real output signal amplitude size of changing by electromagnetic induction is 0.01428V.When if the precision of testing tool 220 only arrives following the 3rd of radix point, the output amplitude size that arrives of 220 interpretations of testing tool is 0.014V.Under identical reference coil 130 conditions, when until test coil 210 when having the ring-like inductance of 69 circle coilings, the real output signal amplitude size of changing by electromagnetic induction is 0.01428V, and the output amplitude size that arrives of 220 interpretations of testing tool still is 0.014V.So the precision of testing tool 220 may cause treating the interpretation mistake of the coil turn of test coil 210.If change into reference to coil 130 in the situation of the standard coil with 100 circle coilings, when until test coil 210 when having the ring-like inductance of 70 circle coilings, 220 interpretations of testing tool are 1.428V to the output amplitude size.When until test coil 210 when having the ring-like inductance of 69 circle coilings, the output amplitude size that arrives of 220 interpretations of testing tool is 1.449V.This shows, in the present embodiment can be by adjusting the turn ratio between reference coil 130 and metal fixture 120, and obtain the output signal range of suitable electromagnetic induction, meeting the measurement precision of testing tool 220, and can reduce the testing cost of buying high accurancy and precision testing tool 220.
In addition, also can place in advance the standard coil of one 70 circle coiling as treating test coil 210, so that the measurement of testing tool 220 correction output signals to be provided before step 2010.And then put into respectively the actual test coil 210 for the treatment of, to read actual output signal, the standard coil and the actual output signal difference for the treatment of between test coil 210 that are then wound the line by testing tool comparison 70 circles are to judge the actual coil turn for the treatment of test coil 210 again.
Generally speaking, traditional coil measurement device is only by metal fixture 120 and treat electromagnetic induction between test coil 210, to obtain the corresponding testing tool 220 that outputs signal to.Due to the output signal of above-mentioned metal fixture 120 with treat that (for example: frequency 20KHz amplitude size corresponding to metal fixture 120 and the turn ratio for the treatment of test coil 210 (for example: (for example: the big or small 0.01428V of being of the amplitude of output signal) 1/70), make the increase of the corresponding above-mentioned turn ratio of output signal of the reality after change by electromagnetic induction reduce is for the alternating voltage of 1V for reference signal on test coil 210.At this moment, if when the measurement precision of the testing tool 220 that uses is not enough, can causes the coil turn interpretation mistake for the treatment of test coil 210, and affect test result.
Compared to the above-mentioned practice, in the above embodiment of the present invention, utilize between reference coil 130 and metal fixture 120 and reference coil 130 and treat turn ratio adjustment between test coil 210, accurate to testing tool 220 interpretation measurement results to obtain suitable output signal position.
In sum, use and the invention has the advantages that and utilize between reference coil 130 and metal fixture 120 and reference coil 130 and the turn ratio adjustment for the treatment of between test coil 210, with measurement precision and the reduction testing cost that improves coil measurement.Mentioned step, except chatting especially bright its order person, all can adjust its front and back order according to actual needs in the present invention, even can carry out simultaneously simultaneously or partly, and not be limited with above-mentioned.
Although the present invention discloses as above with embodiment; so it is not to limit the present invention; anyly be familiar with this skill person; without departing from the spirit and scope of the present invention; when can be used for a variety of modifications and variations, so protection scope of the present invention is as the criterion when looking the scope that appending claims defines.
Claims (10)
1. a coil measurement device, is characterized in that, comprises:
One fixed cell is treated test coil in order to fix one;
One metal fixture, configuration is fixed on this fixed cell, and this metal fixture passes through this and treats test coil, treats a reference signal on test coil in order to respond to this; And
One reference coil, configuration is fixed on this fixed cell, and this reference coil passed through by this metal fixture, treats that in order to this that this metal fixture is responded to this reference signal on test coil is converted to an output signal.
2. coil measurement device according to claim 1, is characterized in that, this fixed cell is in order to this treated test coil, this metal fixture and this reference coil fix, to make this metal fixture pass through the middle openwork part that this treats test coil and this reference coil.
3. coil measurement device according to claim 1, is characterized in that, this reference coil and this treat that the turn ratio of test coil is the ratio that determines this output signal and this reference signal.
4. coil measurement device according to claim 1, is characterized in that, the turn ratio of this reference coil and this metal fixture is to adjust according to the measurement precision of a testing tool that receives this output signal.
5. coil measurement device according to claim 1, is characterized in that, this metal fixture is metal cartridge or plain conductor.
6. a coil measurement method, is characterized in that, comprises:
Provide a reference signal to treat test coil to one;
Treat magnetic Field Coupling between test coil, this reference signal for the treatment of test coil to respond to this by a metal fixture and this; And
By the magnetic Field Coupling between a reference coil and this metal fixture, to change this this reference signal for the treatment of test coil that this metal fixture responded to as an output signal.
7. coil measurement method according to claim 6, is characterized in that, also comprises:
Fix this and treat in test coil, this metal fixture and this reference coil at least one to make this metal fixture pass through the middle openwork part that this treats test coil and this reference coil, the signal of being responded to the stabilizing magnetic field coupling.
8. coil measurement method according to claim 6, is characterized in that, the ratio between this output signal and this reference signal is to treat that by this reference coil and this turn ratio between test coil determines.
9. coil measurement method according to claim 6, is characterized in that, also comprises:
Measure this output signal by a testing tool, with this output signal value of reading that shows that this coil turn to be measured is corresponding.
10. coil measurement method according to claim 6, is characterized in that, also comprises:
Turn ratio by this reference coil and this metal fixture is selected, and adjusting the output area of this output signal, and meets the measurement precision of a testing tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104612751A CN103176061A (en) | 2011-12-26 | 2011-12-26 | Device and method for testing coil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104612751A CN103176061A (en) | 2011-12-26 | 2011-12-26 | Device and method for testing coil |
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| CN103176061A true CN103176061A (en) | 2013-06-26 |
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| CN2011104612751A Pending CN103176061A (en) | 2011-12-26 | 2011-12-26 | Device and method for testing coil |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM241645U (en) * | 2003-08-26 | 2004-08-21 | Tatung Co | Test platform of transformer coil |
| TWI241645B (en) * | 2004-09-30 | 2005-10-11 | United Microelectronics Corp | Pre-process of cutting a wafer and method of cutting a wafer |
| WO2010130068A1 (en) * | 2009-05-13 | 2010-11-18 | 精进电动科技（北京）有限公司 | Apparatus and method for testing number of turns on coil |
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2011
- 2011-12-26 CN CN2011104612751A patent/CN103176061A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM241645U (en) * | 2003-08-26 | 2004-08-21 | Tatung Co | Test platform of transformer coil |
| TWI241645B (en) * | 2004-09-30 | 2005-10-11 | United Microelectronics Corp | Pre-process of cutting a wafer and method of cutting a wafer |
| WO2010130068A1 (en) * | 2009-05-13 | 2010-11-18 | 精进电动科技（北京）有限公司 | Apparatus and method for testing number of turns on coil |
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Application publication date: 20130626 |