CN204165509U - A kind of coil is all produced on the separate type inductosyn on stator - Google Patents
A kind of coil is all produced on the separate type inductosyn on stator Download PDFInfo
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- CN204165509U CN204165509U CN201420506210.3U CN201420506210U CN204165509U CN 204165509 U CN204165509 U CN 204165509U CN 201420506210 U CN201420506210 U CN 201420506210U CN 204165509 U CN204165509 U CN 204165509U
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Abstract
The utility model request protects a kind of coil to be all produced on separate type inductosyn on stator; Belong to the technical field of the spatial position measuring sensor utilizing electromagnetic principle to manufacture; Separate type inductosyn of the present utility model comprises stators and rotators, and stator comprises fine works code coil component and thick line of codes coil component; Described fine works code toroid winding parts comprise the smart coil groups be made up of smart magnetizing coil and smart inductive coil, smart coil groups ring shooting; Thick line of codes coil component comprises the thick coil groups be made up of thick magnetizing coil and thick inductive coil, thick coil groups ring shooting; The end face often organizing wound core is on the working face of stator, and the other end is fixed on the circular base of a soft magnetic material, and circular base is fixed on stator matrix; The circular disk that epitrochanterian diamagnetic material makes is embedded with the N number of rectangular parallelepiped magnetic inductive block and an Archimedes spiral magnetic conduction bar that make of soft magnetic material, and N is the periodicity of fine works code; Absolute angle coder can be formed after separate type inductosyn configuration electronic section of the present utility model.
Description
Art:
The invention belongs to sensor technical field, is carry out based on electromagnetic induction principle the relative space position survey sensor that designs.
Background technology:
At present, utilize the angular transducer of electromagnetic principle manufacture on various instrument and equipment, have the application widely of decades, inductosyn is exactly the Typical Representative of this base part.
Inductosyn with electromagnetic induction principle for designing basic basis, by exciting circuit, variable-current is inputted to magnetizing coil, make inductive coil export induced voltage, induced voltage size depends on the relative position of the change of exciting curent, the space distribution of soft magnetic material, coil shape and magnetizing coil and inductive coil.Induced voltage is sampled and calculates, the measurement data of relative space position can be obtained.
Separate type measurement of angle inductosyn is divided into two parts, parts are installed on the rotating shaft, referred to as rotor, another parts are arranged on axle bed, referred to as stator, have very little gap (being generally a few tenths of a mm) between two parts, the opposite face of two parts is called for short workplace.
When the rotor of inductosyn is relative to stator rotation multi-turn, need by conducting slip ring, excited signal to be sent on epitrochanterian magnetizing coil, or utilize toroidal transformer to pass on the magnetizing coil of rotor by the excited signal of sinusoidal variations, the former needs to configure conducting slip ring, the latter, needs to configure toroidal transformer, except the excited signal of sinusoidal variations, the excited signal of other waveform will produce change of shape in by transformer transport process, bring difficulty to follow-up signal process.
If equipment has had coaxial conducting slip ring, the transmission of a few ring for excited signal can be separated, otherwise, must annex be increased, for signal transmission, in order to save conducting slip ring or toroidal transformer, develop novel disc inductosyn, although under equal conditions, the resolving power and precision that can affect coding is weakened due to induced signal, but, improve reliability due to overall simplification, in some application scenario, there is certain advantage.
In order to obtain the specific coding of high resolution in 360 °, usually there are two cover angle measurement component, the coding of a set of high resolution obtained in minizone, be called fine works code, exciting curent is claimed to be smart exciting curent, inductive coil is smart inductive coil, other is analogized, when the angle value value of rotor and stator relative tertiary location changes, the amplitude of the two-way essence induced voltage signal exported is also different, the voltage of this two-way essence induced voltage signal is sampled and changed, obtain the periodicity numerical function that two independents variable are Space Angle angle value, N number of cycle is had in 360 °, these two periodic function phase differential are four/one-periods.Utilize the ratio of a pair functional value of two functions obtained, by arctan function, a numerical value (fine works code) can be obtained, obtain the corresponding N number of Space Angle angle value of this numerical value.The another set of coding compared with low resolution obtained in 360 ° of intervals, is called thick coding, and claim exciting curent to be thick exciting curent, inductive coil is thick inductive coil, and other is analogized.In like manner obtain the cycle value function that two independents variable are Space Angle angle value, M cycle is had in 360 °, these two periodic function phase differential are four/one-periods, utilize the ratio of a pair functional value of two functions obtained, pass through arctan function, a numerical value (slightly encoding) can be obtained, its corresponding M Space Angle angle value, select the design of M=1 more.Fine works code and thick coding is utilized to judge can determine which the corresponding current spatial Angle Position in N number of angle value that fine works code obtains, complete the specific coding of the high resolution in 360 ° of intervals.
Summary of the invention:
In order to save conducting slip ring or toroidal transformer, invented a kind of coil and be all produced on separate type inductosyn on stator, content of the present invention is:
Based on the design starting point changing induced voltage amplitude by the change in location of soft magnetic material body, magnetizing coil and inductive coil are all produced on the stator of inductosyn; This kind of novel inductosyn comprises stators and rotators, referring to Fig. 1, it is characterized by: on stator, comprise fine works code toroid winding parts and thick line of codes coil component; Described fine works code toroid winding parts comprise the smart coil groups be made up of smart magnetizing coil and smart inductive coil, smart coil groups number is optional be more than or equal to 4 even number, smart coil groups ring shooting; Often the interior smart magnetizing coil of group and smart inductive coil annular are alternately, adjacent windings often in group is 360 °/2N relative to the angle in the center of circle, N is the periodicity that essence is coded in 360 °, one end face of wound core is on the working face of stator, the other end is fixed on the annular ring of a soft magnetic material, the annular ring of soft magnetic material is fixed on the ring washer of diamagnetic material, and ring washer is fixed on stator matrix; The same smart excited signal of input after all smart magnetizing coil series windings; Export after the induced voltage synthesis that smart inductive coil in the smart coil groups of odd indexed produces, as first via essence induced signal, export after the induced voltage synthesis that the smart inductive coil in the smart coil groups of even number sequence number produces, as the second tunnel essence induced signal; Thick line of codes coil component comprises the thick coil groups be made up of thick magnetizing coil and thick inductive coil, thick coil groups number is optional be more than or equal to 4 even number, thick coil groups ring shooting; Often there are thick magnetizing coil and thick inductive coil in group, from the center of circle along radius outwards alternately; The shape of wound core transversal section is the shape of one section of spiral of Archimedes, the end face often organizing wound core is on the working face of stator, the other end is fixed on the fan-shaped pedestal of a soft magnetic material, the fan-shaped pedestal of soft magnetic material is fixed on the sector shaped washer of diamagnetic material, and sector shaped washer is fixed on stator matrix; The same thick excited signal of input after all thick magnetizing coil series windings; Export after the induced voltage synthesis that thick inductive coil in the thick coil groups of odd indexed produces, as the thick induced signal of the first via, export, as the second thick induced signal in road after the induced voltage synthesis that the thick inductive coil in the thick coil groups of even number sequence number produces; Rotor matrix is equipped with the circular disk made of diamagnetic material, circular disk is embedded with the elongated fritter of N number of rectangular parallelepiped (abbreviation magnetic inductive block) and an Archimedes spiral slice (being called for short magnetic conduction bar) that make of soft magnetic material; N number of magnetic inductive block annular is uniformly distributed, and a face of magnetic inductive block and a plane of magnetic conduction bar are on the working face of rotor; Essence magnetizing coil, smart inductive coil and N number of magnetic inductive block composition produces the parts of smart induced signal; The parts of thick magnetizing coil, thick inductive coil and a thick induced signal of magnetic conduction bar composition generation.
Beneficial effect: the Novel circular dish type inductosyn developed saves conducting slip ring or toroidal transformer, although under equal conditions, the resolving power and precision that can affect coding is weakened due to induced signal, but, improve reliability due to overall simplification, in some application scenario, there is certain advantage.
Accompanying drawing illustrates:
In Fig. 1, (2), (1) figure are respectively rotor and stator workplace schematic diagram, A is smart coiler part, and B is thick inductive coil, and C is thick magnetizing coil, D is the rectangular parallelepiped block inlaying epitrochanterian N number of soft magnetic material, and Q is the Archimedes spiral slice adopting soft magnetic material.
Fig. 2 is smart inductive means partial schematic diagram, and J1, J2, J3, J4 are 4 in smart magnetizing coil, and G1, G2, G3, G4 are 4 in smart inductive coil, and V is the annular matrix of the soft magnetic material of smart coil, and D is the slice inlaying epitrochanterian soft magnetic material.
Fig. 3 is smart coil winding partial schematic diagram.
Fig. 4 is smart coil flux schematic diagram.
Fig. 5 is exciting curent and induced voltage curve synoptic diagram, the shape when shape of this induced voltage curve is rotor and stator a certain relative tertiary location.
Fig. 6 is Space Angle position is independent variable, and the numerical value that the induced voltage in ti moment is changed out is the functional image of functional value, Ds and Dc divides and refer to these two functions.
Fig. 7 is the schematic diagram of one of thick coding 4 groups of arc electromagnetic induction coils, and W is the thick coil base of soft magnetic material, and Q is the part sectional drawing of the Archimedes spiral slice of soft magnetic material.
Fig. 8 is thick coil winding methods schematic diagram.
Fig. 9 is thick line circle flux change schematic diagram.
Embodiment:
The present invention can implement in a number of ways, selects a preferred example to be described embodiment.N=90, M=1 in example shown in this article.Referring to the A indication in label in Fig. 1 (1) figure, stator has made 8 smart coil groups, essence coil groups ring shooting, often comprise smart magnetizing coil and smart inductive coil in group, essence magnetizing coil and smart inductive coil annular are alternately, adjacent windings often in group is 2 ° relative to the angle in the center of circle, wound core transverse shape is 4 limit shapes, one end face of wound core is on the working face of stator, the other end is fixed on the annular ring of a soft magnetic material, the annular ring of soft magnetic material is fixed on the ring washer of diamagnetic material, ring washer is fixed on stator matrix.
Referring to Fig. 3, often organize the winding direction of smart magnetizing coil and the contrary of even number sequence number of interior odd indexed, often the smart inductive coil winding direction of odd indexed and the contrary of even number sequence number in group.
The same smart excited signal of all smart magnetizing coil inputs.1st, 3,5, export after the induced voltage synthesis that the smart inductive coil in 7 groups produces, as first via essence induced signal, the 2nd, 4,6, export after the induced voltage synthesis that the smart inductive coil in 8 groups produces, as the second tunnel essence induced signal.
Referring to B, C indication in label (1) figure in Fig. 1, stator has made 4 thick coil groups, thick coil groups ring shooting, often there are a thick magnetizing coil and two thick inductive coils in group, from the center of circle along radius outwards alternately, put in order and be: thick inductive coil, thick magnetizing coil, thick inductive coil.The shape of wound core transversal section is the shape of one section of spiral of Archimedes, the end face often organizing wound core is on the working face of stator, the other end is fixed on the fan-shaped pedestal of a soft magnetic material, the fan-shaped pedestal of soft magnetic material is fixed on the sector shaped washer of diamagnetic material, and sector shaped washer is fixed on stator matrix.Two sections of the arc center line of the arc magnetic core of two thick inductive coils and the spiral of Archimedes of setting overlap, and these two sections of spiral of Archimedes are radially adjacent.Be that axle rotates 180 ° with the center of circle by spiral of Archimedes, the arc core center line of thick magnetizing coil overlaps with one section of postrotational spiral of Archimedes, and this section of spiral of Archimedes is between first two sections.4 thick coil groups are identical.
Referring to Fig. 8, the winding direction of inside and outside two thick inductive coils is contrary.
4 thick magnetizing coil series windings, input same thick excited signal, the 1st, the thick inductive coil series winding in 3 groups, as the circuit producing the thick induced signal of the first via, and the 2nd, the thick inductive coil series winding in 4 groups, as the circuit of the thick induced signal in generation second road.
Referring to D, Q indication in label in Fig. 1 (2) figure, rotor matrix is equipped with the circular disk made of diamagnetic material, circular disk is embedded with 90 the elongated magnetic inductive blocks of rectangular parallelepiped and an Archimedes spiral magnetic conduction bar that make of soft magnetic material.90 magnetic inductive block annulars are uniformly distributed.The annular ring of essence magnetizing coil, smart inductive coil, soft magnetic material and magnetic inductive block composition produce the parts of smart induced signal.The fan-shaped pedestal of thick magnetizing coil, thick inductive coil, soft magnetic material and magnetic conduction bar composition produce the parts of thick induced signal.
Referring to Fig. 2, Fig. 7, after rotor and stator coaxially install, the working face at the working face at place, wound core termination and magnetic inductive block and magnetic conduction bar place is to right, and gap is very little, and general value is between 0.1 to 0.5 millimeter.
Describe principle of work below, when essence exciting curent is by smart magnetizing coil, rotor is different from the relative position of stator is exactly that the relative position of magnetic inductive block and smart coil is different, the distribution of the change rate of strength of the variation magnetic field of causing magnetizing coil to produce is different, cause the variation rate of magnetic flux in inductive coil also different, finally make the difference of the maximum amplitude of the two-way induced voltage signal exported.
Referring to Fig. 3, Fig. 4, intercept several coil, the distribution in magnetic field and the situation of induced voltage under 4 different relative angular position situations have been described.The direction of winding of J1, J3 smart magnetizing coil is contrary with the direction of winding of J2, J4 coil.The direction of winding of G1, G 3 smart inductive coils is contrary with the direction of winding of G 2, G 4 coils.Referring to Fig. 5, at smart exciting curent by bearing maximal value in positive maximal value linear course, the magnetic flux in smart magnetizing coil changes, and because smart magnetizing coil J1, J3 and J2, J4 are wound around, the number of turns is identical, direction is contrary, so the magnetic field intensity of generation is identical, direction is contrary.Referring to Fig. 3 and Fig. 4, now, the change of magnetic flux that will affect in smart inductive coil of the position of magnetic inductive block and coil.Shown in Fig. 4 (1), magnetic inductive block is in directly over smart magnetizing coil, in essence inductive coil, magnetic flux total amount does not change, thus the electromotive force on inductive coil is 0, shown in Fig. 4 (2), magnetic inductive block is in directly between smart inductive coil and smart magnetizing coil, now in smart inductive coil, variation rate of magnetic flux reaches maximal value, thus the electromotive force on smart inductive coil is maximum, referring to Fig. 3 (1), smart inductive coil in this group is connected as shown in Figure 3, the exit then from then on organizing smart inductive coil can obtain non-vanishing smart induced voltage, shown in Fig. 4 (3), magnetic inductive block is in directly over smart inductive coil, in inductive coil, magnetic flux does not change, thus the electromotive force on smart inductive coil is 0, shown in Fig. 4 (4), magnetic inductive block is in directly between smart magnetizing coil and smart inductive coil, now in smart inductive coil, variation rate of magnetic flux reaches maximal value, thus the electromotive force on smart inductive coil is maximum, referring to Fig. 3 (2), from then on the exit organizing inductive coil can obtain the inductive voltage value contrary with symbol in situation Fig. 4 (2) Suo Shi.Referring to Fig. 5, when the angle value consecutive variations of relative position, the ti moment in exciting curent intensity level linear change interval, to output voltage sampling and A/D conversion, just obtains one-period function.
By the setting of the Space Angle position of the coil to generation two-way induced signal, the smart induced voltage sampling that two-way is exported and A/D conversion, can obtain two periodic functions, the cycle is 4 °, phase differential is four/one-period (1 °), the function curve of one-period shown in Fig. 6.Measuring process is exactly that functional value inverse by obtaining goes out angle value, utilizes the ratio of a pair functional value of two functions obtained, by arctan function, can obtain a numerical value.Because foregoing two functions have 90 cycles in 360 ° of intervals, so corresponding 90 the Space Angle angle value of this numerical value obtained, so far just complete fine works code.Also needed thick coding, could determine in 90 angle values which be the angle value of relative space position.
By thick inductive means, can obtain two periodic functions only having one-period on 360 ° of intervals, independent variable is Space Angle angle value, and functional value is data, and the phase differential of two periodic functions is four/one-period (90 °).
At thick exciting curent by bearing maximal value in positive maximal value linear course, the change of magnetic flux that the relative position of the change that magnetic flux in thick magnetizing coil occurs and magnetic conduction bar and thick line circle will affect in thick inductive coil.Referring to Fig. 9, the change in magnetic field is described by 4 different relative angular position situations, shown in Fig. 9 (1), magnetic conduction bar gap is in directly over thick magnetizing coil, in the thick inductive coil in left and right, the rate of change of magnetic flux is equal, referring to the connected mode of coil shown in Fig. 8, because left and right thick inductive coil winding direction is contrary, be 0 after electromotive force synthesis on known two thick inductive coils, output voltage is 0, center line due to magnetic conduction bar is one section of spiral of Archimedes, rotor is relative to after stator rotation 90 °, it is the position in the magnetic conduction bar gap after rotating shown in Fig. 9 (2), now in the thick inductive coil in the right, variation rate of magnetic flux is greater than the left side, thus electromotive force is greater than the left side on the thick inductive coil in the right, be not 0 after electromotive force synthesis on two thick inductive coils, output voltage is not equal to 0, the position in the magnetic conduction bar gap after 90 ° is rotated again shown in Fig. 9 (3), in the thick inductive coil in left and right, the rate of change of magnetic flux is equal, be 0 after electromotive force synthesis on two thick inductive coils, output voltage is 0, it is the position in the magnetic conduction bar gap after rotating 90 ° again shown in Fig. 9 (4), now in the thick inductive coil in the right, variation rate of magnetic flux is less than the left side, thus electromotive force is less than the left side on the thick inductive coil in the right, be not 0 after electromotive force synthesis on two thick inductive coils, output voltage is not equal to 0, because left and right thick inductive coil winding direction is contrary, so the voltage exported in such cases is contrary with the voltage direction exported in situation Fig. 9 (2) Suo Shi.Referring to Fig. 5, when the angle value consecutive variations of relative position, the ti moment in exciting curent intensity level linear change interval, to output voltage sampling and A/D conversion, obtains one-period function.
By to the sampling of the thick induced signal of two-way and A/D conversion, can obtain two periodic functions, the cycle is 360 °, and phase differential is four/one-period (90 °), and function curve shape as shown in Figure 6.Utilize the ratio of a pair functional value, by arctan function, can obtain a numerical value, namely this numerical value be the Space Angle angle value in 360 ° of intervals, so far completes thick coding.The resolving power of thick coding is lower.
One slightly coding angle value respectively with 90 fine works code angle values be combined into 90 right, wherein only have pair of horns angle value to occur by the unique point in 360 ° of intervals, so utilize the fine works code and thick which the corresponding current spatial Angle Position can determined in 90 fine works code angle values of encoding that obtain simultaneously.Rotor and laundry are at any one relative position, an angle value can be obtained by said process, this angle value and Space Angle position are man-to-man corresponding relations, and this angle value is exactly the angle value of the specific coding form of relative position in 360 ° of intervals.
Claims (10)
1. coil is all produced on the separate type inductosyn on stator, and it comprises stators and rotators; It is characterized by: magnetizing coil and inductive coil are all produced on the stator of inductosyn; Stator comprises fine works code coil component and thick line of codes coil component; Described fine works code toroid winding parts comprise the smart coil groups be made up of smart magnetizing coil and smart inductive coil, essence coil groups ring shooting, often the interior smart magnetizing coil of group and smart inductive coil are alternately, adjacent windings often in group is 360 °/2N relative to the angle in the center of circle, N is the periodicity of numerical function in 360 ° obtained after the induced voltage sampling of the smart inductive coil of setting, one end face of wound core is on the working face of stator, and the other end is fixed on the annular ring of a soft magnetic material; The annular ring of soft magnetic material is fixed on the ring washer of diamagnetic material, and ring washer is fixed on stator matrix; Thick line of codes coil component comprises the thick coil groups be made up of thick magnetizing coil and thick inductive coil, thick coil groups ring shooting; Often there are thick magnetizing coil and thick inductive coil in group, from the center of circle along radius outwards alternately; One end face of wound core is on the working face of stator, and the other end is fixed on the fan-shaped pedestal of a soft magnetic material; The fan-shaped pedestal of soft magnetic material is fixed on the sector shaped washer of diamagnetic material, and sector shaped washer is fixed on stator matrix; Rotor matrix is equipped with the circular disk made of diamagnetic material, circular disk is embedded with the N number of rectangular parallelepiped magnetic inductive block and an Archimedes spiral magnetic conduction bar that make of soft magnetic material; N number of magnetic inductive block annular is uniformly distributed, and a face of magnetic inductive block and a plane of magnetic conduction bar are on the working face of rotor; The annular ring of essence magnetizing coil, smart inductive coil, soft magnetic material and N number of magnetic inductive block composition produce the parts of smart induced signal; The fan-shaped pedestal of thick magnetizing coil, thick inductive coil, soft magnetic material and the parts of a thick induced signal of magnetic conduction bar composition generation; The function of this inductosyn is: time in working order, the change of rotor and stator relative angular position is exactly the change of the relative angular position of magnetic inductive block and smart coil, magnetic conduction bar and thick line circle, thus affect the magnetic field distribution change in the magnetic field produced by magnetizing coil, cause the change of magnetic flux in smart inductive coil and thick inductive coil, the final induced voltage exported changes; Utilize and can calculate the angle value of space relative angular position to the sample numerical value that obtains of induced voltage.
2. a kind of coil according to claim 1 is all produced on the separate type inductosyn on stator, it is characterized by: the group number of described smart coil groups be more than or equal to 4 even number.
3. a kind of coil according to claim 1 is all produced on the separate type inductosyn on stator, it is characterized by: often in group, the coil winding direction of smart magnetizing coil of odd indexed is contrary with the coil winding direction of the smart magnetizing coil of even number sequence number, often in group, the coil winding direction of smart inductive coil of odd indexed is contrary with the coil winding direction of the smart inductive coil of even number sequence number.
4. a kind of coil according to claim 1 is all produced on the separate type inductosyn on stator, it is characterized by: the same smart excited signal of input after all smart magnetizing coil series windings.
5. a kind of coil according to claim 1 is all produced on the separate type inductosyn on stator, it is characterized by: export after the induced voltage synthesis that the smart inductive coil in the smart coil groups of odd indexed produces, as first via essence induced signal, export after the induced voltage synthesis that smart inductive coil in the smart coil groups of even number sequence number produces, as the second tunnel essence induced signal.
6. a kind of coil according to claim 1 is all produced on the separate type inductosyn on stator, it is characterized by: the group number of thick coil groups be more than or equal to 4 even number.
7. a kind of coil according to claim 1 is all produced on the separate type inductosyn on stator, it is characterized by: the shape of the transversal section of the magnetic core of thick line circle is the shape of one section of spiral of Archimedes.
8. a kind of coil according to claim 1 is all produced on the separate type inductosyn on stator, it is characterized by: the same thick excited signal of input after all thick magnetizing coil series windings; Export after the induced voltage synthesis that thick inductive coil in the thick coil groups of odd indexed produces, as the thick induced signal of the first via, export, as the second thick induced signal in road after the induced voltage synthesis that the thick inductive coil in the thick coil groups of even number sequence number produces.
9. a kind of coil according to claim 1 is all produced on the separate type inductosyn on stator, it is characterized by: magnetic conduction strip is Archimedes spiral.
10. a kind of coil according to claim 1 is all produced on the separate type inductosyn on stator, it is characterized by: fine works code toroid winding parts and slightly isolating with diamagnetic material between line of codes coil component and stator matrix, reduces electromagnetic interference (EMI).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420506210.3U CN204165509U (en) | 2014-09-03 | 2014-09-03 | A kind of coil is all produced on the separate type inductosyn on stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420506210.3U CN204165509U (en) | 2014-09-03 | 2014-09-03 | A kind of coil is all produced on the separate type inductosyn on stator |
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| CN204165509U true CN204165509U (en) | 2015-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420506210.3U Withdrawn - After Issue CN204165509U (en) | 2014-09-03 | 2014-09-03 | A kind of coil is all produced on the separate type inductosyn on stator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606018A (en) * | 2014-09-03 | 2016-05-25 | 葛幸华 | Separated inductosyn with all coils made on stator |
| CN111630341A (en) * | 2018-01-23 | 2020-09-04 | 株式会社阿米泰克 | Induction type rotation detection device |
-
2014
- 2014-09-03 CN CN201420506210.3U patent/CN204165509U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606018A (en) * | 2014-09-03 | 2016-05-25 | 葛幸华 | Separated inductosyn with all coils made on stator |
| CN105606018B (en) * | 2014-09-03 | 2018-02-27 | 葛幸华 | A kind of coil is all produced on the separate type inductosyn on stator |
| CN111630341A (en) * | 2018-01-23 | 2020-09-04 | 株式会社阿米泰克 | Induction type rotation detection device |
| CN111630341B (en) * | 2018-01-23 | 2022-04-05 | 株式会社阿米泰克 | Induction type rotation detection device |
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Granted publication date: 20150218 Effective date of abandoning: 20180227 |