CN108225383A - A kind of non-contact encoder and electronic equipment - Google Patents
A kind of non-contact encoder and electronic equipment Download PDFInfo
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- CN108225383A CN108225383A CN201810097804.6A CN201810097804A CN108225383A CN 108225383 A CN108225383 A CN 108225383A CN 201810097804 A CN201810097804 A CN 201810097804A CN 108225383 A CN108225383 A CN 108225383A
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- 229910052751 metal Inorganic materials 0.000 claims abstract description 73
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- 230000001939 inductive effect Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 abstract description 2
- 230000010355 oscillation Effects 0.000 description 15
- 239000004020 conductor Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 241000208340 Araliaceae Species 0.000 description 3
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 3
- 235000003140 Panax quinquefolius Nutrition 0.000 description 3
- 235000008434 ginseng Nutrition 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
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- 230000000903 blocking effect Effects 0.000 description 1
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- 238000009413 insulation Methods 0.000 description 1
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- 230000002093 peripheral effect Effects 0.000 description 1
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- 238000007493 shaping process Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
- G01D5/249—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains using pulse code
Abstract
The present invention relates to encoder techniques field more particularly to a kind of non-contact encoders and electronic equipment.Wherein, which includes：Round circuit board, is laid at least two coil groups positioned at different zones, and each coil group includes at least two coils；Shell, the central axis of round circuit board is oppositely arranged and surround with round circuit board, the rounded bottom of shell towards round circuit board is provided with several metal portions, in rotation case, one metal portion is at least partly fallen on any coil in any one coil group, and any one metal portion of several metal portions is not in the projection of vertical direction all falls within any one coil group on a remaining coil in the projection of vertical direction；Coding circuit is according to metal portion in the projection of vertical direction and the coil of every group of coil group coil, generation encoded signal.Therefore, which is open with unobstructed in the space of vertical direction, therefore, realizes the expansion in terms of display.
Description
Technical field
The present invention relates to encoder techniques field more particularly to a kind of non-contact encoders and electronic equipment.
Background technology
Rotary encoder is widely used in the regulation and control aspect of electrical appliance as signal entering apparatus.Wherein, rotation is compiled
Code device includes absolute type encoder and incremental encoder, the operation principle of the two be a series of regular electric signals of output with
It realizes and differentiates and adjust.
Traditional technology provides a kind of incremental encoder, including shaft and with the pulse code-disc that shaft rotates, arteries and veins
It rushes code-disc and uniformly scribes apertured grating, light source and light-sensitive element are installed on code-disc both sides.When code-disc is rotated with shaft, often
The light and shade variation that a gap just generates a light is turned over, light-sensitive element acquisition light and shade variation forms acquisition signal.Acquisition letter
Number amplify by shaping, incremental encoder can export the pulse signal of certain amplitude and power.
Inventor in the implementation of the present invention, it is found that traditional technology has at least the following problems：Conventional delta formula is compiled
The mechanical realization of code device is more complicated, such as：It is provided with rotation axis, and rotation axis forms enclosed area with shell in vertical direction
Domain.Due to the blocking of rotation axis, such incremental encoder is difficult to show the expansion of aspect, therefore, seriously limits product
Appearance design and hardware aspect expansion.
Invention content
In order to overcome above-mentioned technical problem, a purpose of the embodiment of the present invention be intended to provide a kind of non-contact encoder and
The technical issues of electronic equipment, the coder structure that solution traditional technology provides is complicated.
In a first aspect, the embodiment of the present invention provides a kind of non-contact encoder, the non-contact encoder includes：It is round
Circuit board, is laid at least two coil groups positioned at different zones, and each coil group includes at least two coils；Shell,
It is oppositely arranged with the round circuit board and surround the central axis of the circle circuit board, and the shell is towards the circle
The rounded bottom of shape circuit board is provided with several metal portions, and when rotating the shell, a metal portion is in the throwing of vertical direction
Shadow is at least partly fallen on any coil, and any one metal portion of several metal portions is in the projection of vertical direction
It does not all fall on any one remaining coil of the coil；Each coil in coding circuit, at least two coil group
Connection for falling the projection in every group of coil group coil in vertical direction in response to metal portion, generates encoded signal.
Optionally, the round circuit board is divided into the subregions such as N, and each coil of each coil group is laid in difference
It is single wait in subregions, N is positive integer more than or equal to 4.
Optionally, several metal portions are uniformly arranged on the rounded bottom of the round circuit board.
Optionally, the N is 4 multiple, and the quantity of several metal portions is N/4；The circle circuit board is laid
There are two coil groups positioned at different zones, a coil group includes the first induction coil and the first reference coil, another line
Circle group includes the second induction coil and the second reference coil, is fallen in a metal portion in the projection of vertical direction in the described second ginseng
Coil is examined, and shell rotation X is a when subregional angle, metal portion is fallen again in the projection of vertical direction described
On first reference coil, wherein, X is positive integer.
Optionally, according to second reference coil toward first reference coil direction rotate the shell when, institute
It is 3 to state X.
Optionally, according to first reference coil toward second reference coil direction rotate the shell when, institute
It is 1 to state X.
Optionally, the N is 32 or 24 or 16 or 8.
Optionally, the metal portion is the metal derby of regular shape.
Optionally, the coding circuit includes：Inductive switching chip connects respectively with each coil of each coil group
It connects, for converting the coil in vertical direction by the metal portion stops and generates oscillator signal；Controller, with institute
The connection of inductive switching chip is stated, for generating encoded signal according to the oscillator signal.
In second aspect, the embodiment of the present invention provides a kind of electronic equipment, and the electronic equipment includes any one of them
Non-contact encoder.
In non-contact encoder provided in an embodiment of the present invention, round circuit board is laid with positioned at different zones at least
Two groups of coils, each coil group include at least two coils.Shell is oppositely arranged with round circuit board and surround round circuit board
Central axis, the rounded bottom of shell towards round circuit board is provided with several metal portions, in rotation case, a gold
Category portion is at least partly fallen on any coil in any one coil group in the projection of vertical direction, and times of several metal portions
A metal portion of anticipating is not in the projection of vertical direction all falls within any one coil group on a remaining coil.Coding circuit
According to metal portion in the projection of vertical direction and the coil of every group of coil group coil, generation encoded signal.Therefore, this is non-contact
Formula encoder is open with unobstructed in the space of vertical direction, therefore, realizes the expansion in terms of display.
Description of the drawings
Fig. 1 is that the embodiment of the present invention provides a kind of oscillation principle block diagram；
Fig. 2 is that the embodiment of the present invention provides a kind of electrical block diagram of oscillating circuit；
Fig. 3 is that the embodiment of the present invention provides the schematic diagram that a kind of metal portion projects to round circuit board in vertical direction；
Fig. 4 is the connection diagram that the embodiment of the present invention provides a kind of coding circuit and each coil；
Fig. 5 is that the embodiment of the present invention provides a kind of working timing figure of non-contact encoder；
Fig. 6 is that the embodiment of the present invention provides a kind of circuit structure block diagram of coding circuit；
Fig. 7 is that the embodiment of the present invention provides a kind of operating diagram of non-contact encoder.
Specific embodiment
For the ease of understanding the present invention, with reference to the accompanying drawings and detailed description, the present invention is carried out in more detail
It is bright.It should be noted that when element is expressed " being fixed on " another element, it can directly on another element or
There may be one or more elements placed in the middle therebetween.When an element is expressed " connection " another element, it can be straight
It is connected to another element in succession or there may be one or more elements placed in the middle therebetween.Term used in this specification
" vertically ", " horizontal ", "left", "right" and similar statement are for illustrative purposes only.
Unless otherwise defined, technical and scientific term all used in this specification is led with belonging to the technology of the present invention
The normally understood meaning of technical staff in domain is identical.Used term is only in the description of the invention in this specification
The purpose of description specific embodiment is not intended to the limitation present invention.Term "and/or" includes used in this specification
The arbitrary and all combination of one or more relevant Listed Items.
For convenience of explanation and understand the technical solution of the embodiment of the present invention, below the noun of locality used in explanation with
Subject to the orientation that attached drawing is shown.
Non-contact encoder provided in an embodiment of the present invention can be applied to each class of electronic devices, and be configured and set as electronics
Standby regulation and control interface, such as：Electronic equipment is motor device.In electric system, by adjusting non-contact encoder to realize
The adjusting of motor speed.Electronic equipment is kitchen range equipment.In temperature control system, by adjusting non-contact encoder to realize
Non-pole light regulating.Therefore, above-mentioned non-contact encoder can be widely used in electrical appliance.
As previously mentioned, conventional delta formula encoder also exists in addition to above-mentioned the shortcomings that being previously mentioned：Due to such increment type
Encoder is contact, and signal pins must be welded on pcb board, occupies a large amount of pcb board spaces, is connect so as to constrain hardware
The extension of mouth.Also, the poor compatibility of such incremental encoder, all kinds of models need to mold customization, with shell knob
With being also a problem.It is greasy dirt, quiet easily by dust in addition, the environment resistant pollution capacity of such incremental encoder is poor
The pollutions such as electric dust, moisture cause electrical property bad.
Based on this, the embodiment of the present invention provides a kind of non-contact encoder.Illustrating the specific of above-mentioned non-contact encoder
Before embodiment, the embodiment of the present invention first illustrates the basic principle involved by above-mentioned non-contact encoder.
Also referring to Fig. 1 and Fig. 2, coil L, peripheral components C and inductive switching chip LDC (Inductance-to-
Digital Converter) composition oscillating circuit.Inductive switching chip LDC is analog signal processing chip.Wherein, inductance turns
Chip LDC is changed for detecting the frequency of oscillation F of oscillating circuit.After the oscillating circuit generates oscillation, inductance L generates magnetic on periphery
.After metallic conductor enters the magnetic field, magnetic field intensity can be changed.Due to the variation in magnetic field, the sensibility reciprocal of coil L can be caused
With the variation of both impedances, and then the variation of frequency of oscillation F is influenced.Inductive switching chip LDC is also encoded with metallic conductor in advance
Oscillating function relationship between magnetic field position P and frequency of oscillation F.
According to above-mentioned illustrated principle, the embodiment of the present invention provides a kind of non-contact encoder.Also referring to Fig. 3,
Fig. 4 and Fig. 5.The non-contact encoder 300 includes：Round circuit board 31, shell (not shown) and coding circuit 32.
As shown in figure 3, round circuit board 31 is laid at least two coil groups positioned at different zones, each coil group packet
Include at least two coils.For example：One coil group includes the first induction coil 31a1 and the first reference coil 31b1, another
A coil group includes the second induction coil 31a2 and the second reference coil 31b2, all underlapped laying of any two coil.Wherein,
First induction coil 31a1 and the first reference coil 31b1 collectively constitutes input signal all the way, the second induction coil 31a2 and second
Reference coil 31b2 collectively constitutes another way input signal.
For the first induction coil 31a1 and the first reference coil 31b1, when metallic conductor is not yet close or close simultaneously
During the first induction coil 31a1 and the first reference coil 31b1, corresponding to the first induction coil 31a1 and the first reference coil 31b1
Frequency of oscillation it is all equal.It is described herein as that " metallic conductor is not yet close or simultaneously close to the first induction coil 31a1 and first
Reference coil 31b1 " is not throw into the first induction coil 31a1 and the first reference line in the projection of vertical direction by metallic conductor
31b1 is enclosed to define.However, when some coil by close to when, that is, metallic conductor the projection of vertical direction fall first sensing
On coil 31a1 or the first reference coil 31b1, then, the frequency of oscillation mutation of the coil increases.
Shell is oppositely arranged with round circuit board 31 and surround the central axis of round circuit board 31, and shell direction is round
The rounded bottom of circuit board 31 is provided with several metal portions.When using non-contact encoder 300, shell is as knob, user
It can be adjusted by rotational shell with realizing.In some embodiments, metal portion can be as the knob mounted on outer casing bottom
Metal dish, wherein, the metal portion of knob metal dish partially replaces the bottom for being covered with shell with the insulation division of shell.User is each
During rotational shell, it can make in metal portion upright projection to round circuit board 31.Further, metal portion is in vertical direction
Can project to the coil of round circuit board 31, can also avoid the coil of round circuit board 31.
In further embodiments, metal portion can be directly installed on the bottom of shell, and be formed in the bottom of shell
The fanning tray of rule.
However, in embodiments of the present invention, when user's rotation case, a metal portion vertical direction projection at least
Part is fallen on any coil in any one coil group, and any one metal portion of several metal portions is in vertical direction
Projection is not all fallen in any one coil group on a remaining coil.For example：Referring again to Fig. 3, user's rotation is outer
During shell, a metal portion falls the first induction coil 31a1 in half in the projection of vertical direction, alternatively, the first sense of covering comprehensively
Answer coil 31a1.When metal portion is when the projection of vertical direction is fallen in the first induction coil 31a1, outer casing bottom any one
Metal portion is not all fallen in the projection of vertical direction on the first reference coil 31b1.It can similarly obtain, for the second induction coil
31a2 and the second reference coil 31b2, all follows above-mentioned rotation and projection rule.
In the present embodiment, if metal portion is all fallen in the first induction coil 31a1 and first simultaneously in the projection of vertical direction
During reference coil 31b1, according to Fig. 1 and operation principle shown in Fig. 2, the first induction coil 31a1 and the first reference coil 31b1
Corresponding frequency of oscillation is all equal, and coding circuit 32 does not distinguish this rotation of shell, and then fails effectively to generate
Encoded signal.
As shown in figure 4, coding circuit 32 is connect with coil each at least two coil groups, for existing in response to metal portion
Vertical direction falls the projection in every group of coil group coil, generates encoded signal.For example：As previously mentioned, when metal portion exists
The projection of vertical direction is fallen in the first reference coil 31b1, is had at this time：The frequency of oscillation Fes of first induction coil 31a1 is less than
The frequency of oscillation Frs of first reference coil 31b1, as shown in figure 5, coding circuit 32 further exports a parameter Switch A
High level.When metal portion is when the projection of vertical direction is fallen in the first induction coil 31a1, have at this time：First induction coil
The frequency of oscillation Fes of 31a1 is more than the frequency of oscillation Frs of the first reference coil 31b1, as shown in figure 5, coding circuit 32 is further
Export the low level of a parameter Switch A.The series of pulses of several parameters Switch A compositions can be used as coding letter
Number.
It can similarly obtain, for the second induction coil 31a2 and the second reference coil 31b2, it is former that above-mentioned logic can be followed
Reason, so as to export a parameter Switch B as shown in Figure 5.
In some embodiments, user can generate encoded signal according to product demand, self-defining coding circuit 32
Logic.
In some embodiments, which is divided into the subregions such as N, each coil cloth of each coil group
It is located in different single grade subregions, N is the positive integer more than or equal to 4.Therefore, non-contact encoder 300 can be to use
Family provides multiple step values, so as to multi-gear adjustment.
As shown in figure 3, the circle circuit board 31, which is divided into 32, waits subregions, the first induction coil 31a1, the first ginseng
Coil 31b1, the second induction coil 31a2 and the second reference coil 31b2 is examined all to be separately positioned in the subregions such as single.Wherein,
One is spaced between first induction coil 31a1 and the first reference coil 31b1 and waits subregions, the second induction coil 31a2 and second
One is spaced between reference coil 31b2 and waits subregions.
Further, round circuit board 31 includes area pellucida and dark space, and area pellucida is not fallen for metal portion in the projection of vertical direction
The region arrived, dark space are metal portion in the region that the projection of vertical direction is fallen on, wherein, the division of area pellucida and dark space is not to consolidate
Fixed, shell is followed to carry the rotation of metal portion and change.Referring again to Fig. 3, a dark space is in round circuit board 31
Subregions are waited in occupation of two.
Further, above-mentioned several metal portions are uniformly arranged on rounded bottom.As shown in figure 3, rounded bottom sets 8 gold
Category portion, 8 metal portions are regularly arranged at intervals around the periphery of rounded bottom.Each metal portion is in the projection of vertical direction
All subregions are waited in occupation of two.By using such structure setting, user can more accurately multi-gear adjustment.
Further, as previously mentioned, when metal portion is when the projection of vertical direction covers the first induction coil 31a1, the
The frequency of oscillation Fes of one induction coil 31a1 is more than the frequency of oscillation Frs of the first reference coil 31b1, and coding circuit 32 generates one
The low level of a parameter Switch A, the operation principle for other situations that details are not described herein again.
In general, in above-mentioned each embodiment, above-mentioned N is 4 multiple, and the quantity of several metal portions is N/4.It lifts
For example：Other than above-mentioned N is 36 situation, N can also be 24 or 16 or 8.Then, the quantity of corresponding metal portion according to
It is secondary that be divided into be 6,4,2.
Referring to Fig. 3.When a metal portion is fallen in the projection of vertical direction in the second reference coil 31b2, and will be outer
When subregional angle, metal portion is fallen in the projection of vertical direction on the first reference coil 31b1 again for shell rotation X,
In, X is positive integer.
For example：Direction (that is, counterclockwise) according to the second reference coil 31b2 toward the first reference coil 31b1 rotates
During shell, which is 3.As shown in figure 3, the second induction coil 31a2 and the second reference coil 31b2 are first observed, at this point, the second ginseng
It examines coil 31b2 and is located at dark space, the second induction coil 31a2 is located at area pellucida.Defined herein the second induction coil 31a2 at this time,
The state between the projection of metal portion is first state to two reference coil 31b2 respectively.
And then, when rotating counterclockwise 3, shell when subregional angle, observe at this time the first induction coil 31a1 with
First reference coil 31b1, the first reference coil 31b1 is located at dark space, and the first induction coil 31a1 is located at area pellucida.It is defined herein this
When the first induction coil 31a1, the first reference coil 31b1 respectively the state between the projection of metal portion be the second state.
Obviously, first state is equal to the second state.
Again for example：It is outer according to the rotation (clockwise) of the direction of the first reference coil 31b1 toward the second reference coil 31b2
During shell, which is 1.As shown in figure 3, the second induction coil 31a2 and the second reference coil 31b2 are first observed, at this point, the second reference
Coil 31b2 is located at dark space, and the second induction coil 31a2 is located at area pellucida.Defined herein the second induction coil 31a2 at this time, second
The state between the projection of metal portion is first state to reference coil 31b2 respectively.
And then, when rotating clockwise 1, shell when subregional angle, observe at this time the first induction coil 31a1 with
First reference coil 31b1, the first reference coil 31b1 is located at dark space, and the first induction coil 31a1 is located at area pellucida.It is defined herein this
When the first induction coil 31a1, the first reference coil 31b1 respectively the state between the projection of metal portion be the second state.
Obviously, first state is equal to the second state.
Therefore, each coil and metal portion are set according to above-mentioned rule, encoded signal can not only be generated, and it is also
It may determine that the rotation direction of shell, that is,：Judge clockwise with counterclockwise, therefore, which can be real
Existing functional diversities.
In above-mentioned each embodiment, metal portion is the metal derby of regular shape.Therefore, the design of user can be reduced
Difficulty.
In above-mentioned each embodiment, as shown in fig. 6, the coding circuit 32 includes：Inductive switching chip 321 and controller
322, controller 322 is connect with inductive switching chip 321.
Inductive switching chip 321 distinguishes each coil connection of each coil group, for reset coil in vertical direction
The oscillator signal for being stopped and generated by metal portion.For example：First reference coil 31b1 is in vertical direction by metal portion
Stop and generate oscillator signal (at this point, the first induction coil 31a1 is located at area pellucida), inductive switching chip 321 samples oscillation letter
Number.
Controller 322 is used to generate encoded signal according to oscillator signal.For example, also referring to Fig. 3 and Fig. 5.
During original state, since the first reference coil 31b1 is in area pellucida, the first induction coil 31a1 is in dark space, the second reference coil 31b2
In dark space, the second induction coil 31a2 is in area pellucida, and therefore, Switch B are high level, and Switch A are low level.
When user rotates clockwise shell so that when shell moves a decile regional perspective, the second reference coil 31b2
In dark space, the second induction coil 31a2 in area pellucida, the first reference coil 31b1 in dark space, the first induction coil 31a1 in area pellucida,
Therefore, Switch B and Switch A are all high level.
When user rotates counterclockwise shell so that when shell moves a decile regional perspective, the second reference coil 31b2
In area pellucida, the second induction coil 31a2 in dark space, the first reference coil 31b1 in dark space, the first induction coil 31a1 in dark space,
Therefore, Switch B and Switch A are all low level.
The content that those skilled in the art are instructed and guided according to the present embodiment can all push over out subsequent sequential level,
This is not repeated.
It notices：When just having started rotation case for user, clockwise under Switch B it is equal with Switch A phases,
Switch B under counterclockwise differ 90 degree with Switch A phases, and then, coding circuit 32 can judge that user rotates
The direction of shell.
In above-mentioned each embodiment, controller can be general processor, digital signal processor (DSP), special collection
It is compiled into circuit (ASIC), field programmable gate array (FPGA), microcontroller, ARM (Acorn RISC Machine) or other
Any combinations of journey logical device, discrete gate or transistor logic, discrete hardware component or these components.In addition, control
Device can also be any conventional processors, controller, microcontroller or state machine.Controller can also be implemented as computing device
Combination, for example, the combination of DSP and microprocessor, multi-microprocessor, one or more microprocessors combination DSP core or appoint
What its this configuration.
To sum up, using non-contact encoder provided in this embodiment, be in the space of vertical direction it is open with it is without hindrance
Gear, therefore, realize the expansion in terms of display.
Further, as shown in fig. 7, non-contact encoder provided in this embodiment is on the basis for not changing hardware plan
On, the coil position more easily changed in the distribution and round circuit board of metal portion can directly change stepping etc.
Grade.
Further, non-contact encoder environment provided in this embodiment is adaptable, is not easily susceptible to dust, greasy dirt,
The pollutions such as ELECTROSTATIC DUST, moisture cause electrical property bad.
Further, non-contact encoder provided in this embodiment is not on the basis of hardware is changed, by changing gold
The structure in category portion can realize the function of absolute type encoder, and the seriation extension for product creates condition.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of non-contact encoder, which is characterized in that including：
Round circuit board, is laid at least two coil groups positioned at different zones, and each coil group includes at least two lines
Circle；
Shell with the round circuit board is oppositely arranged and surround the central axis of the round circuit board, the shell
The rounded bottom of the round circuit board is provided with several metal portions, when rotating the shell, a metal portion is being hung down
Nogata to projection at least partly fall on any coil, and any one metal portion of several metal portions is vertical
The projection in direction is not all fallen on any one remaining coil of the coil；
Coding circuit is connect with coil each at least two coil group, in response to metal portion in vertical direction
The projection in every group of coil group coil is fallen, generates encoded signal.
2. non-contact encoder according to claim 1, which is characterized in that the circle circuit board is divided into N deciles
Region, each coil of each coil group are laid in different single grade subregions, and N is the positive integer more than or equal to 4.
3. non-contact encoder according to claim 2, which is characterized in that several metal portions are uniformly arranged on described
The rounded bottom of round circuit board.
4. non-contact encoder according to claim 3, which is characterized in that
The N is 4 multiple, and the quantity of several metal portions is N/4；
The circle circuit board is laid with two coil groups positioned at different zones, a coil group include the first induction coil with
First reference coil, another coil group includes the second induction coil and the second reference coil, in a metal portion in Vertical Square
To projection fall in second reference coil, and by shell rotation X when subregional angle, metal portion is vertical
The projection in direction is fallen again on first reference coil, wherein, X is positive integer.
5. non-contact encoder according to claim 4, which is characterized in that
According to second reference coil toward first reference coil direction rotate the shell when, the X be 3.
6. non-contact encoder according to claim 4, which is characterized in that
According to first reference coil toward second reference coil direction rotate the shell when, the X be 1.
7. non-contact encoder according to claim 2, which is characterized in that the N is 32 or 24 or 16 or 8.
8. non-contact encoder according to claim 1, which is characterized in that the metal portion is the metal of regular shape
Block.
9. according to the non-contact encoder of claim 1 to 8 any one of them, which is characterized in that the coding circuit includes：
Inductive switching chip is connect respectively with each coil of each coil group, for converting the coil in vertical direction
On by the metal portion stops and generates oscillator signal；
Controller is connect with the inductive switching chip, for generating encoded signal according to the oscillator signal.
10. a kind of electronic equipment, which is characterized in that including non-contact encoder as described in any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810097804.6A CN108225383A (en) | 2018-01-31 | 2018-01-31 | A kind of non-contact encoder and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810097804.6A CN108225383A (en) | 2018-01-31 | 2018-01-31 | A kind of non-contact encoder and electronic equipment |
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| CN108225383A true CN108225383A (en) | 2018-06-29 |
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| CN201810097804.6A Pending CN108225383A (en) | 2018-01-31 | 2018-01-31 | A kind of non-contact encoder and electronic equipment |
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