CN207764365U - Inductor off position detection device - Google Patents
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- CN207764365U CN207764365U CN201721557756.1U CN201721557756U CN207764365U CN 207764365 U CN207764365 U CN 207764365U CN 201721557756 U CN201721557756 U CN 201721557756U CN 207764365 U CN207764365 U CN 207764365U
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Abstract
The utility model is related to a kind of inductor off position detection devices.Including electrode of substrate and capacitive detection module.Wherein, electrode of substrate is used between breaking inductor to be measured be formed capacitance structure, and capacitive detection module is used to detect and obtain the size of the capacitance formed between breaking inductor and substrate to be measured.Capacitance structure is formed by being arranged between electrode of substrate and breaking inductor to be measured, and two opposite polarity voltage ends of capacitive detection module are connected respectively to using electrode of substrate as the electrode that one of the structure of capacitance electrode is formed with breaking inductor to be measured, it can realize the size for quickly measuring and obtaining the capacitance formed between breaking inductor and substrate to be measured.
Description
Technical field
The utility model is related to detection technique fields, more particularly to a kind of inductor off position detection device.
Background technology
Inductor open circuit is a kind of common form of inductor failure.Check that the mode of inductor open circuit has at present：Arteries and veins
Punching, microscopic observation, X-ray examination method etc..Impulse method test off position is to prolong electric wire transmission by pulse current, disconnected
Waypoint reflects, the product of the feedback time and electromagnetic wave propagation speed of pulse current, it may be determined that the position of trip point.
But impulse method is commonly used to the trip point position of test long distance delivery circuit, is not suitable for short-range inductor trip point
Detection.Microscopic observation is to determine the position of open circuit by amplifying the gap of off position, when commonly used to analyze PCB
The situation of plate surface electric conductor open circuit, and for the feelings of LTCC (low-temperature co-fired ceramics) electronic component (such as inductor) internal break
Condition, due to there is the solid matters such as ceramics or ferrite to block, it is difficult to be directly observed internal break with microscope.X-ray inspection
Machine is to observe electrodes of electronic components open circuit conditions by X-ray transmission principle.But when only electric conductor open circuit is apparent, X-ray
It is just easy to observe trip point.In breaking gap very little, x-ray flaw detector by resolution ratio due to being limited, it is difficult to observe
Breaking gap.
Utility model content
Based on this, the utility model provides a kind of inspection for the off position that can conveniently, accurately detect breaking inductor
Survey device.
In addition, also providing a kind of detection method of inductor off position.
A kind of inductor off position detection device, including：
Electrode of substrate, electrode of substrate are used to form capacitance structure between breaking inductor to be measured；
Capacitive detection module, capacitive detection module is for detecting and obtaining shape between breaking inductor and electrode of substrate to be measured
At capacitance size.
Electrode of substrate is provided with the first insulating layer on one side towards breaking inductor to be measured in one of the embodiments,.
Electrode of substrate is provided with second insulating layer on one side backwards to breaking inductor to be measured in one of the embodiments,.
Capacitive detection module is at least provided with the first connectivity port and second connection end mouth in one of the embodiments,；
The electric polarity of first connectivity port is opposite with the electric polarity of second connection end mouth；
First connectivity port is electrically connected with electrode of substrate；
Second connection end mouth is used to be electrically connected with the termination electrode of breaking inductor to be measured.
Capacitive detection module is additionally provided with third connectivity port in one of the embodiments,；
The electric polarity of first connectivity port is opposite with the electric polarity of third connectivity port；
Second connection end mouth is used to be electrically connected with the first termination electrode of breaking inductor to be measured；
Third connectivity port is used to be electrically connected with the second termination electrode of breaking inductor to be measured.
Capacitive detection module is additionally provided with power supply in one of the embodiments, and control switchs；
Power supply is used to provide voltage with the capacitance that electrode of substrate is constituted to breaking inductor to be measured；
Control switch gives second connection end mouth and third connectivity port to provide voltage respectively for Switching power.
Electrode of substrate is metallic plate or graphite cake in one of the embodiments,.
The device of above-mentioned detection breaking inductor off position to be measured, by the way that electrode of substrate and breaking inductor to be measured is arranged
In capacitance structure is formed between two sections of inductance coils, and pass through capacitive detection module and measure electrode of substrate and breaking inductor to be measured
In capacitance size is formed between two sections of inductance coils.The influence factor of capacitance size can be utilized to combine breaking inductor to be measured
In two sections of measurement capacitances between inductance coil and electrode of substrate quickly judge breaking inductor off position to be measured with it is to be measured
The distance between two termination electrodes of breaking inductor.
A kind of inductor off position detection method, method include：
Breaking inductor to be measured to be measured is placed on an electrode of substrate and forms capacitance structure；
It detects and records the capacitance size between breaking inductor and electrode of substrate to be measured；
The position of breaking inductor open circuit to be measured is judged according to the capacitance size between breaking inductor to be measured and electrode of substrate
It sets.
Judge that the specific method of breaking inductor off position to be measured includes in one of the embodiments,：
It detects and records the first capacitance in breaking inductor to be measured between first segment inductance coil and electrode of substrate；
It detects and records the second capacitance in breaking inductor to be measured between second segment inductance coil and electrode of substrate；
Broken with to be measured according to off position in the ratio of the first capacitance and the second capacitance judgement breaking inductor to be measured
The distance between two termination electrodes of road inductor；
Alternatively, the specific method of judgement breaking inductor off position to be measured includes：
It detects and records any one section of capacitance between inductance coil and electrode of substrate in breaking inductor to be measured；
According to the capacitance between the inductor and electrode of substrate identical and intact with the specification measured under the same terms
Ratio judges the distance between two termination electrodes of off position and breaking inductor to be measured in breaking inductor to be measured.
Judge that the specific method of off position in breaking inductor to be measured further includes in one of the embodiments,：
It detects and records the first opposite of any one section of inductance coil in breaking inductor to be measured respectively close to substrate electricity
First pair of capacitance when pole between electrode of substrate；
It detects and records the second opposite of any one section of inductance coil in breaking inductor to be measured respectively close to substrate electricity
Second pair of capacitance when pole between electrode of substrate；
According to the ratio of first pair of capacitance judge the off position of breaking inductor to be measured respectively with the first opposite two
Distance between a surface；
According to the ratio of second pair of capacitance judge the off position of breaking inductor to be measured respectively with the second opposite two
Distance between a surface.
Above-mentioned breaking inductor off position detection method to be measured, by the way that breaking inductor to be measured is placed on substrate electricity
Capacitance structure is formed on extremely, and measures simultaneously base plate electrode and open circuit to be measured by providing voltage to the capacitance structure of formation
Capacitance size is formed in inductor between two sections of inductance coils, realizes and combines open circuit to be measured using the influence factor of capacitance size
Two sections of measurement capacitances between inductance coil and electrode of substrate quickly judge breaking inductor off position to be measured in inductor
The distance between two termination electrodes of breaking inductor to be measured.Thus, it is possible to the off positions of smart decision bits breaking inductor to be measured
(coordinate) realizes simple, quick, the accurately judgement to the breaking invalid position of closed breaking inductor to be measured, after raising
The detection efficiency of continuous grinding and polishing and X-ray detection.
Description of the drawings
Fig. 1 is the system schematic of the device for the detection breaking inductor off position to be measured that an embodiment provides；
Fig. 2 is the detection method flow chart for the detection breaking inductor off position to be measured that an embodiment provides；
Fig. 3 is judgement breaking the distance between the inductor off position and two termination electrode to be measured that an embodiment provides
Detection method flow chart；
Fig. 4 is distance between the embodiment judgement breaking inductor off position to be measured provided and two termination electrode
Another detection method flow chart；
Fig. 5 is the detection of judgement breaking inductor off position and opposite distance between the surface to be measured that an embodiment provides
Method flow diagram；
Fig. 6 is breaking inductor three to be measured that an embodiment provides to opposite schematic diagram.
Reference sign：10. capacitive detection module；20. substrate；21. the first insulating layer；22. electrode of substrate；23. the
Two insulating layers；30. open circuit inductor to be measured.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
As shown in Figure 1, a kind of breaking inductor off position detection device to be measured, including electrode of substrate 22 and capacitance detecting
Module 10.Wherein, electrode of substrate 22 is used to form capacitance structure between breaking inductor 30 to be measured.Capacitive detection module 10 is used
In the size for detecting and obtaining the capacitance formed between breaking inductor and substrate to be measured.Electrode of substrate 22 be plate-like structure or
One side close to breaking inductor to be measured is plane.
In the composition of above-mentioned apparatus, at least there are two opposite polarity electrode, one of electrodes for capacitive detection module 10
It is electrically connected with electrode of substrate 22, another electrode is electrically connected with breaking inductor 30 to be measured, to be formed capacitance structure
Two electrodes provide voltage, and then measure the size of measured capacitance values.
Capacitance structure is formed by being arranged in electrode of substrate and breaking inductor to be measured between two sections of inductance coils, and is passed through
Capacitive detection module measures in electrode of substrate and breaking inductor to be measured and forms capacitance size between two sections of inductance coils.It can
Two sections of capacitances between inductance coil and electrode of substrate in breaking inductor to be measured are combined to survey using the influence factor of capacitance size
Magnitude quickly judges the distance between breaking inductor off position to be measured and two termination electrodes of breaking inductor to be measured.
In one of the embodiments, as shown in Figure 1, the one side in electrode of substrate 22 close to breaking inductor to be measured is arranged
There is the first insulating layer 21.So set, being on the one hand to prevent electrode of substrate 22 and the open circuit to be measured without insulating layer package
Inductor is in direct contact to form short circuit, and cannot form capacitance structure.On the other hand it is quiet on electrode of substrate 22 in order to prevent
Positive charge in charge adsorption environment and middle conjunction or diffusion lead to electric quantity loss.
In one of the embodiments, as shown in Figure 1, being provided on one side backwards to breaking inductor to be measured of electrode of substrate 22
Second insulating layer 23.So set, be on the one hand to prevent electrode of substrate 22 contacted with nonisulated workbench lead to ground connection and
Failure.On the other hand be in order to prevent the positive charge in the electrostatic charge absorption environment on electrode of substrate 22 and middle conjunction or diffusion cause
Electric quantity loss.
Capacitive detection module 10 is at least provided with the first connectivity port and second connection end in one of the embodiments,
Mouthful.Wherein, the electric polarity of the first connectivity port is opposite with the electric polarity of second connection end mouth.So set, be to be able to for
Two electrodes for forming capacitance structure provide voltage, and then measure the size of measured capacitance values.In the present solution, the first connecting pin
Mouth with electrode of substrate 22 for being electrically connected, and second connection end mouth is used to be electrically connected with breaking inductor 30 to be measured, to make composition
Capacitance between the electrode of substrate 22 of capacitance structure and breaking inductor 30 to be measured is sized to be measured.
In one of the embodiments, as shown in Figure 1, capacitive detection module 10 is provided with the first connectivity port, the second company
Connect port and third connectivity port.Wherein, the electric polarity of the first connectivity port and second connection end mouth and third connectivity port
Electric polarity is opposite.In capacitance structure, two electrodes, which need to provide opposite polarity charge, can just make formation side in capacitance structure
To the more uniform electric field of consistent and intensity, and then keep the measurement of capacitance more acurrate.In three connectivity ports, the first connecting pin
For being electrically connected with electrode of substrate 22, second connection end mouth is used to be electrically connected with breaking the first termination electrode of inductor to be measured mouth, the
Three connectivity ports are used to be electrically connected with breaking the second termination electrode of inductor to be measured.So set, the first connection of switching can be passed through
Port is connect with second connection end mouth and third connectivity port respectively, realizes the capacitance size of two sections of breaking inductors 30 to be measured
It measures, it is simple, convenient, fast.
Capacitive detection module 10 is additionally provided with power supply in one of the embodiments, and control switchs.Wherein, power supply is used for
To breaking inductor 30 to be measured voltage is provided with the capacitance that electrode of substrate 22 is constituted.Control switch gives the respectively for Switching power
Two connectivity ports and third connectivity port provide voltage.Since the measurement of capacitance size is needed to two electrodes of capacitance structure
It is upper that opposite polarity voltage is provided, so, it needs that a power supply is arranged in the capacity measurement module in this programme.Certainly, the electricity
Source can also provide required electric energy for the electronic component of other electricity consumptions in capacitive detection module 10 simultaneously.
Electrode of substrate 22 is metallic plate or graphite cake in one of the embodiments,.Graphite and most of metal belong to electricity
Good conductor, and can carry more charges as electrode, and more charges are loaded on two electrodes of capacitance structure
It can make the electric field strength bigger between capacitance, on the one hand measured value can be made more accurate, on the one hand can adapt to electrode
Between dielectric it is thicker when, the measurement of capacitance.
The device of above-mentioned detection breaking inductor off position to be measured, by the way that electrode of substrate 22 and breaking inductance to be measured is arranged
Capacitance structure, and one of structure by electrode of substrate 22 as capacitance electrode and breaking inductance to be measured are formed between device 30
The electrode that device is formed is connected respectively to two opposite polarity voltage ends of capacitive detection module 10, to quickly measure and obtain
The size of the capacitance formed between open circuit inductor and substrate to be measured.
According to the above, it is simple that present invention also provides one kind, and can easily and efficiently detect breaking inductance to be measured
The detection method of device off position, as shown in Fig. 2, method includes step S110-S130：
Step S110:Breaking inductor 30 to be measured is placed on an electrode of substrate 22 and forms capacitance structure.It will be to be measured disconnected
Road inductor 30 is placed on the capacitance that can make to be formed on breaking inductor 30 and electrode of substrate 22 to be measured on an electrode of substrate 22
Structure is relatively stablized, convenient for measuring.
Step S120:It detects and records the capacitance size between breaking inductor 30 and electrode of substrate 22 to be measured.Passing through will
Opposite polarity connectivity port is respectively connected on two electrodes in capacitance structure in capacity measurement module, and capacitive junctions is made to be configured
At stable electric field, to measure the capacitance size under certain voltage, and the capacitance size measured is recorded so as to subsequent analysis.
Step S130:According to the capacitance size judgement open circuit electricity to be measured between breaking inductor 30 to be measured and electrode of substrate 22
The position of sensor open circuit.
Since under identical environment, capacitance size only projects electricity between overlapping area, interelectrode distance and electrode between electrode
Three factors of medium are related, and the size of capacitance projects overlapping area and dielectric dielectric constant in just between electrode respectively
Correlation is negatively correlated with interelectrode distance.It is specific to be measured disconnected in this programme breaking inductor off position detection method to be measured
Dielectric between road inductor 30 and electrode of substrate 22 is judgement, so according to specific breaking inductor 30 to be measured and substrate electricity
The positive correlation of overlapping area and the negative correlation energy with interelectrode distance are projected between capacitance size between pole 22 and electrode
Enough three orthogonal straight lines of formation, and the intersection point of orthogonal straight lines, that is, breaking inductor off position to be measured, this method is simple, convenient
And it measures accurate.
In one of the embodiments, as shown in figure 3, according to the electricity between breaking inductor 30 to be measured and electrode of substrate 22
Hold size and judges that the specific method of the position of 30 open circuit of breaking inductor to be measured includes step S210-S230：
Step S210:It detects and records in breaking inductor 30 to be measured between first segment inductance coil and electrode of substrate 22
First capacitance.
Step S220:It detects and records in breaking inductor 30 to be measured between second segment inductance coil and electrode of substrate 22
Second capacitance.
Step S230:According to the ratio of the first capacitance and the second capacitance judgement breaking inductor off position to be measured with
The distance between open circuit 30 two termination electrodes of inductor to be measured.
In above-mentioned steps S210-S230, for convenience of description, claim breaking inductor 30 to be measured disconnects respectively for two sections
Make first segment inductance coil and second segment inductance coil, first segment inductance coil and second segment inductance coil is electric with substrate respectively
Capacitance is measured between pole 22 is accordingly referred to as the first capacitance and the second capacitance.
The principle for detecting breaking inductor off position to be measured is：As shown in Figure 1, by the open circuit electricity to be measured of specific open circuit
On the base plate 20, open circuit inductor 30 to be measured constitutes two capacitance structures with electrode of substrate 22 for the placement of sensor level, i.e., and the
The first capacitance structure, shape between second end inductance coil and electrode of substrate 22 are formed between one section of inductance coil and electrode of substrate 22
At the second capacitance structure.The material of same inductor outer layer covers is usually identical, so two capacitance structures at this time
Dielectric is identical, and electrode distance is identical, and inductance coil width of the general breaking inductor 30 to be measured on same length direction
Also identical, so when the ratio of the second capacitance of the first capacitance of the first capacitance structure and the second capacitance structure that measures with
The ratio of the distance of open circuit inductor off position two termination electrodes of distance to be measured is identical, thus can according to the first capacitance and
The ratio of second capacitance judges between 30 two termination electrodes of breaking inductor off position to be measured and breaking inductor to be measured
Distance, realize breaking inductor off position to be measured on breaking inductor first direction to be measured (such as length direction) position.
In addition, when breaking inductor 30 to be measured is placed on matrix and forms capacitance structure with base electrode vertically, first measured is electric
Hold the ratio of the first capacitance of structure and the second capacitance of the second capacitance structure and breaking inductor off position to be measured away from
Therefore ratio with a distance from both ends by the ratio of the first capacitance and the second capacitance on the contrary, can also judge open circuit electricity to be measured
The distance between sensor off position and 30 both ends of breaking inductor to be measured realize breaking inductor off position to be measured to be measured
The position of breaking inductor such as length direction.
In one of the embodiments, as shown in figure 4, according to the electricity between breaking inductor 30 to be measured and electrode of substrate 22
Hold size and judges that the specific method of the position of 30 open circuit of breaking inductor to be measured can also be step S310-S320：
Step S310:It detects and records in breaking inductor 30 to be measured between any one section of inductance coil and electrode of substrate 22
Capacitance.
Step S320:According between the inductor and electrode of substrate 22 identical and intact with the specification measured under the same terms
Capacitance ratio, between 30 two termination electrodes of off position and breaking inductor to be measured for judging breaking inductor 30 to be measured
Distance.
In above-mentioned steps S310-S320, the principle for detecting breaking inductor off position to be measured is：As shown in Figure 1,
On the base plate 20 by the placement of the breaking inductor level to be measured of specific open circuit, open circuit inductor 30 to be measured and 22 structure of electrode of substrate
At two capacitance structures, i.e., the first capacitance structure, the second inductor wire are formed between first segment inductance coil and electrode of substrate 22
The second capacitance structure is formed between circle and electrode of substrate 22.It is completely new intact with breaking 30 same size of inductor to be measured by one
Inductor, electricity is constituted with electrode of substrate 22 using modes of emplacement placement identical with breaking inductor 30 to be measured on the base plate 20
Hold structure.At this point, the material of completely new intact inductor outer layer covers and the material of 30 outer layer covers of breaking inductor to be measured are
It is identical, so the electricity between open circuit inductor 30 to be measured and the tested completely new intact inductor and base electrode of same size
Medium is identical, and electrode distance is identical, and the inductance coil width between both ends is also identical, so when measured from one end one section it is to be measured
Capacitance between breaking inductor 30 and electrode of substrate 22 and completely new intact inductor the same end from same size measure
Capacitance ratio and length and same size that section of inductance coil is tested in breaking inductor 30 to be measured it is completely new complete
The ratio of the length of good inductor is identical, therefore can be according to inductance identical with the intact and specification measured under the same terms
The ratio of capacitance between device and electrode of substrate 22 judges breaking 30 off position of inductor to be measured and breaking inductor to be measured
The distance between 30 two termination electrodes realize breaking inductor off position to be measured on breaking inductor first direction to be measured
The position of (such as length direction).In addition, forming capacitance with base electrode when breaking inductor 30 to be measured is placed on vertically on matrix
When structure, capacitance between measured at this time from one end one section breaking inductor 30 and electrode of substrate 22 to be measured and from identical rule
The ratio for the capacitance that completely new intact inductor the same end of lattice measures is tested that section of electricity with breaking inductor 30 to be measured
Feel coil length with the ratio of the length of the completely new intact inductor of same size on the contrary, therefore also can according to it is identical
Under the conditions of capacitance between the identical inductor of intact and specification measured and electrode of substrate 22 ratio, judge open circuit to be measured
The distance between inductor off position and 30 both ends of breaking inductor to be measured realize that breaking inductor off position to be measured is waiting for
Survey the position of breaking inductor such as length direction.
In one of the embodiments, as shown in figure 5, according to the electricity between breaking inductor 30 to be measured and electrode of substrate 22
Hold size and judges that the specific method of the position of 30 open circuit of breaking inductor to be measured further includes step S410-S440：
Step S410：Detect and record first pair of opposite point of any one section of inductance coil in breaking inductor 30 to be measured
Not close to first pair of capacitance when electrode of substrate 22 between electrode of substrate 22.
Step S420：Detect and record second pair of opposite point of any one section of inductance coil in breaking inductor 30 to be measured
Not close to second pair of capacitance when electrode of substrate 22 between electrode of substrate 22.
Step S430：Judge the off position of breaking inductor to be measured respectively with first according to the ratio of first pair of capacitance
Distance between two surfaces of opposite.
Step S440：Judge the off position of breaking inductor to be measured respectively with second according to the ratio of second pair of capacitance
Distance between two surfaces of opposite.
As shown in fig. 6, for convenience of description, it is contemplated that a cross section is that hexahedral each face of rectangle is all broken with to be measured
Road inductor 30 contacts, and will be divided into six faces around breaking inductor 30 to be measured, breaking inductor 30 to be measured at this time possesses
Three pairs of opposites.Above-mentioned steps S210-S230 and step S310-S320 mainly for detection of breaking inductor 30 to be measured open circuit
The distance at positional distance both ends (length direction), what is utilized is that dielectric in capacitance structure and electrode distance are all identical and electric
The overlapping area difference that extremely mutually projects measures the position of open circuit.And in above-mentioned steps S410-S440, then it is main to utilize
The overlapping area that dielectric and electrode mutually project is all identical, and electrode distance difference measures off position and other four faces
The distance between.
Its principle is：As shown in Figure 1, on the base plate 20 by the placement of the breaking inductor level to be measured of specific open circuit, waiting for
The two sections of inductance coils surveyed in breaking inductor 30 and electrode of substrate 22 constitute two capacitance structures, i.e. the first inductance coil with
The first capacitance structure is formed between electrode of substrate 22, and the second capacitance structure is formed between the second inductance coil and electrode of substrate 22.
The material of same inductor outer layer covers is usually identical, i.e., the dielectric in capacitance structure is identical.Due to open circuit electricity to be measured
Frontal projected area of any one section of inductance coil in a pair of of opposite is identical in sensor 30, therefore can be approximately considered and electrode of substrate
In 22 capacitance structures constituted, the overlapping area that electrode mutually projects is identical.At this point, any one section in open circuit inductor 30 to be measured
Capacitance size and the interelectrode distance dependent for the capacitance structure that inductance coil is constituted with electrode of substrate 22.It therefore, will be to be measured
When the opposite of any one section of inductance coil is respectively for substrate in breaking inductor 30 two capacitance sizes measuring only with
Electrode distance is related in capacitance structure, so as to judge breaking inductor to be measured according to the ratio of two capacitances measured
Off position respectively between two opposites at a distance from.Therefore S410-S440 combinations step S210-S230 or step through the above steps
Rapid S310-S320 can obtain the breaking inductor trip point to be measured uniquely judged, realize the smart decision bits of trip point.
Above-mentioned breaking inductor off position detection method to be measured, by the way that breaking inductor to be measured is placed on substrate electricity
Capacitance structure is formed on extremely, and measures simultaneously base plate electrode and open circuit to be measured by providing voltage to the capacitance structure of formation
Capacitance size is formed in inductor between two sections of inductance coils, realizes and combines open circuit to be measured using the influence factor of capacitance size
Two sections of measurement capacitances between inductance coil and electrode of substrate quickly judge breaking inductor off position to be measured in inductor
The distance between two termination electrodes of breaking inductor to be measured.Thus, it is possible to the off positions of smart decision bits breaking inductor to be measured
(coordinate) realizes simple, quick, the accurately judgement to the breaking invalid position of closed breaking inductor to be measured, after raising
The detection efficiency of continuous grinding and polishing and X-ray detection.
Each technical characteristic of above example can be combined arbitrarily, to keep description succinct, not to above-described embodiment
In each technical characteristic it is all possible combination be all described, as long as however, the combination of these technical characteristics be not present lance
Shield is all considered to be the range of this specification record.
Above example only expresses the several embodiments of the utility model, the description thereof is more specific and detailed, but simultaneously
Cannot the limitation to utility model patent range therefore be interpreted as.It should be pointed out that for the ordinary skill people of this field
For member, without departing from the concept of the premise utility, various modifications and improvements can be made, these belong to this reality
With novel protection domain.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (7)
1. a kind of inductor off position detection device, which is characterized in that including：
Electrode of substrate, the electrode of substrate are used to form capacitance structure between breaking inductor to be measured；
Capacitive detection module, the capacitive detection module is for detecting and obtaining the breaking inductor to be measured and substrate electricity
The size of the capacitance formed between pole.
2. the apparatus according to claim 1, which is characterized in that the electrode of substrate is towards the breaking inductor to be measured
It is provided with the first insulating layer on one side.
3. the apparatus according to claim 1, it is characterised in that：The electrode of substrate is backwards to the breaking inductor to be measured
It is provided with second insulating layer on one side.
4. the apparatus according to claim 1, it is characterised in that：The capacitive detection module is at least provided with the first connecting pin
Mouth and second connection end mouth；
The electric polarity of first connectivity port is opposite with the electric polarity of second connection end mouth；
First connectivity port is electrically connected with the electrode of substrate；
The second connection end mouth is used to be electrically connected with the termination electrode of the breaking inductor to be measured.
5. device according to claim 4, it is characterised in that：The capacitive detection module is additionally provided with third connecting pin
Mouthful；
The electric polarity of first connectivity port is opposite with the electric polarity of third connectivity port；
The second connection end mouth is used to be electrically connected with the first termination electrode of the breaking inductor to be measured；
The third connectivity port is used to be electrically connected with the second termination electrode of the breaking inductor to be measured.
6. device according to claim 5, it is characterised in that：The capacitive detection module is additionally provided with power supply and control is opened
It closes；
The power supply is used to provide voltage with the capacitance that the electrode of substrate is constituted to the breaking inductor to be measured；
The control switch is provided to the second connection end mouth and the third connectivity port respectively for switching the power supply
Voltage.
7. according to the device described in claim 1-6 any one, it is characterised in that：The electrode of substrate is metallic plate or graphite
Plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721557756.1U CN207764365U (en) | 2017-11-20 | 2017-11-20 | Inductor off position detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721557756.1U CN207764365U (en) | 2017-11-20 | 2017-11-20 | Inductor off position detection device |
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| CN207764365U true CN207764365U (en) | 2018-08-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108020747A (en) * | 2017-11-20 | 2018-05-11 | 深圳振华富电子有限公司 | Inductor off position detection device and detection method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108020747A (en) * | 2017-11-20 | 2018-05-11 | 深圳振华富电子有限公司 | Inductor off position detection device and detection method |
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