CN106767990B - Counter for passive high-frequency induction direct-reading metering device - Google Patents
Counter for passive high-frequency induction direct-reading metering device Download PDFInfo
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- CN106767990B CN106767990B CN201710034668.1A CN201710034668A CN106767990B CN 106767990 B CN106767990 B CN 106767990B CN 201710034668 A CN201710034668 A CN 201710034668A CN 106767990 B CN106767990 B CN 106767990B
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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
- G01D18/00—Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
A passive high-frequency induction method direct-reading type graduator for metering device, including several character wheels and carry wheel, set up 0-9 ten figures on the cylindrical surface on the character wheel, set up the tooth on the carry wheel, one side edge of the character wheel sets up several and pulls out the tooth circumferentially, another side edge sets up two and pulls out the tooth circumferentially, several character wheels are all installed on a character wheel axle, several carry wheels are all installed on a carry wheel axle, character wheel axle and carry wheel axle are all installed on support, offer the cavity in the end face that the character wheel has several to pull out the tooth, it can realize the carry correction accurately, does not appear the error code; the character wheel does not generate resistance in rotation, so that the precision of the metering instrument is high; the failure risk caused by aging of electronic elements, poor welding and the like is avoided, and the operation reliability is extremely high; the phenomenon of code reading failure caused by aging of components is avoided, and the noise resistance is 20-30 times higher than that of any structure in the prior art; low manufacturing cost and the like.
Description
Technical Field
The invention relates to a direct-reading type meter, in particular to a passive high-frequency induction method direct-reading type meter.
Background
Because the schemes such as photoelectric coding technology adopted by mechanical metering instruments have more defects, the technical personnel in the field provide various improved technologies for solving the problems. For example: 201210051124.3, 201210089537.0, etc., which are improved to solve some problems, but still have the following defects: although the angular displacement realized by the magnet can enable the measurement resolution to depend on the actual precision of analog-to-digital conversion, and improve the angle identification precision of the character wheel, if the magnet embedded in the character wheel is interfered by external strong magnetism, the character wheel can generate extreme heavy resistance to influence the overall precision of the metering instrument, and if the magnet is serious, a magnetic shielding sheet in the counter can be disabled, and a large amount of water and gas can be stolen due to the leak; the character wheels cannot share the character wheel shaft, and the structure is easy to generate resistance, so that the precision of the metering instrument is influenced; the friction resistance between the character wheel shafts is large, and the precision of the metering instrument is influenced.
Disclosure of Invention
The invention aims to provide a passive high-frequency induction direct-reading type counter for a metering device, which is used for solving the defects in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a passive high frequency induction method is counter for direct-reading metering device, includes several character wheel and carry the position wheel, sets up 0-9 ten figures on the face of cylinder on the character wheel, carries and sets up the tooth on the position wheel, and one side edge circumference of character wheel sets up the several and pulls out the tooth, and opposite side edge circumference sets up two and pulls out the tooth, its characterized in that: the plurality of character wheels are all installed on a character wheel shaft, the plurality of carry wheels are all installed on a carry wheel shaft, the character wheel shaft and the carry wheel shaft are all installed on a support, a cavity is formed in the end face, provided with a plurality of pulling teeth, of each character wheel, a reflection sheet is installed in the cavity, a transmitting and receiving plate is installed on one side, corresponding to the character wheels, of the installation reflection sheet, the transmitting and receiving plate is installed on the character wheel shaft, a first metal coil is arranged on the reflection sheet and comprises a circular receiving coil and a cross interconnection reflection coil, the circular receiving coil is provided with an opening, an opening end metal wire is connected with a cross interconnection reflection coil metal wire, the cross interconnection reflection coil is composed of 2 coils which are symmetrical and opposite in winding direction, a second metal coil is arranged on the transmitting and receiving plate and comprises a transmitting coil, an A-phase receiving coil and a B-phase receiving coil, the A-phase receiving coil is two coils which are symmetrically distributed, and the B-phase receiving coil is two coils which are symmetrically distributed. The transmitting and receiving plate is arranged in the transmitting and receiving plate protection box, and the transmitting and receiving protection box is arranged on the character wheel shaft. Two symmetrical and oppositely wound coils of the cross-linked reflectron coil each occupy a sector of 90 degrees. The transmitting coil is circular, the winding directions of the two A-phase receiving coils are opposite, the winding directions of the two B-phase receiving coils are opposite, and the A-phase receiving coil and the B-phase receiving coil are staggered by 90 degrees. Each A-phase receiving coil and each B-phase receiving coil are sector areas distributed at 90 degrees. The reflective sheet is a circular sheet. 1 round receiving coil on the reflector plate corresponds to more than 2 crossed interconnected reflecting coils. The circular receiving coil is a 4-turn coil, and the cross-connected reflecting coil is a 4-turn coil. The center of the reflector plate is provided with a shaft hole, and the edge of the reflector plate is provided with a metal wire through hole. The coil on the reflector is disposed on a circular surface of the reflector or on a surface of the reflector thickness.
The scheme provided by the invention can realize angle identification of the character wheel within a range of 360 degrees, can accurately measure the rotation angle of the character wheel relative to the display window, has accurate and stable reading, has large information amount of angle identification, does not generate carry error, and ensures that the reading window of the carry stage is accurate; in the 0-9 carry process of the character wheel, the character wheel angle information can be accurately and continuously measured, carry correction can be accurately realized, and error codes do not occur; the high-frequency induction reflecting sheet and the transmitting and receiving plate can realize that all character wheels share one character wheel shaft, so that the character wheels do not generate resistance in rotation, and the precision of the metering instrument is high; the high-frequency induction reflecting sheet and the transmitting and receiving plate do not need to be welded with any electronic element, the fault risk caused by aging of the electronic element, poor welding and the like is avoided, and the operation reliability is extremely high; the phenomenon of code reading failure caused by aging of components is avoided, and the noise resistance is 20-30 times higher than that of any structure in the prior art; low manufacturing cost and the like.
Drawings
FIG. 1 is a schematic structural view of the present invention; FIG. 2 is a schematic structural diagram of the reflector 4 of FIG. 1; fig. 3 is a schematic structural diagram of the transmitting and receiving board 12 in fig. 1.
Detailed Description
The invention relates to a passive high-frequency induction method direct-reading type counter for a metering device, which comprises a plurality of character wheels 6 and a stepping wheel 5, wherein ten numbers ranging from 0 to 9 are arranged on a cylindrical surface on the character wheels 6, teeth are arranged on the stepping wheel 5, a plurality of tooth pulling teeth are circumferentially arranged on the edge of one side of the character wheels 6, and two tooth pulling teeth are circumferentially arranged on the edge of the other side of the character wheels, and the counter is characterized in that: the multiple character wheels 6 are all installed on a character wheel shaft 10, the multiple carry wheels 5 are all installed on a carry wheel shaft 2, the character wheel shaft 10 and the carry wheel shaft 2 are all installed on a support 1, a cavity is formed in the end face, provided with multiple tooth pulling teeth, of each character wheel 5, a reflection sheet 4 is installed in the cavity, a transmitting and receiving plate 12 is installed on one side, corresponding to the character wheel 6, where the reflection sheet 4 is installed, of each character wheel, the transmitting and receiving plate 12 is installed on the character wheel shaft 10, a first metal coil is arranged on the reflection sheet 4 and comprises a circular receiving coil 16 and a cross interconnection reflection coil 15, the circular receiving coil 16 is provided with an opening 14, a metal wire at the end of the opening 14 is connected with a metal wire of the cross interconnection reflection coil 15, the cross interconnection reflection coil 15 is formed by 2 symmetrical and oppositely wound coils, a second metal coil is arranged on the transmitting and receiving plate 12 and comprises a transmitting coil 17, an A connection receiving coil 18 and a B connection receiving coil 19, the A phase receiving coil 18 is two symmetrically distributed coils, and the B phase receiving coil 19 is two symmetrically distributed coils. By taking the position as the reference, the first character wheel at the right is closely coupled with the character wheel shaft, and the rightmost end of the character wheel shaft is provided with a coupling pulling wheel 9. The advancing wheel 5 is positioned between every two character wheels, and the character wheels are provided with a plurality of tooth-pulling parts, namely 20 coupling teeth are arranged on the side edge of the right end surface of the character wheel. At this time, 2 coupling teeth are arranged on the side edge of the left end face of the character wheel. The end face of the character wheel with the plurality of shifting teeth is provided with a cavity, wherein the cavity is a shallow cavity, the outer surface of the installed reflector plate is 0.5-1 mm lower than the outer surfaces of the 20 coupling teeth on the character wheel, so that the reflector plate and the transmitting and receiving plate can receive signals more easily, and the reflector plate can also be installed on one side of 2 teeth of the character wheel. In the scheme of the invention, the reflector plate is parallel to the transmitting and receiving plate on one side of the character wheel in space, so that the signal can be accurately received. The circular receiving coil and the cross-connection reflecting coil are electrically connected in series.
A sine high-frequency excitation signal is fed to a transmitting coil arranged on the transmitting and receiving plate, and magnetic flux generated by a transmitting winding is excitation magnetic flux. The coil on the reflector plate generates induced electromotive force by the receiving coil to induce and excite magnetic flux, the electromotive force drives the reflector plate loop to generate current, and the magnetic flux generated by the current is reflected magnetic flux. Because the reflection coil on the reflection sheet is composed of two sub-coils with opposite winding directions, the generated reflection magnetic fluxes are mutually counteracted for the transmission coil, and therefore, mutual inductance cannot be generated for the transmission coil on the transmission and receiving plate. The magnetic flux generated by the reflecting coil of the reflecting sheet rotates along with the character wheel and is received by the receiving coil on the transmitting and receiving plate, and the four-quadrant angle identification can be realized by the phases of the received signal and the excitation signal, so that the angle identification in a 360-degree range is realized. Meanwhile, the phase A and the phase B connection take-up coils are composed of two completely symmetrical sub-coils which are wound in opposite directions, so that induced electromotive force cannot be generated on the phase A and the phase B connection take-up coils by excitation magnetic flux, and the excitation magnetic flux cannot interfere the receiving of the receiving coil on the reflected magnetic flux.
The two electromotive forces of the A-phase receiving coil and the B-phase receiving coil can be collected by a CPU through an ADC after amplification and detection, and then angle identification within a range of 360 degrees is practical according to the correlation of signals, and the angle identification precision only depends on the conversion precision of the ADC.
Because the angle identification precision only depends on the conversion precision of the ADC, the correction in the stage of entering 0 along with 9 can be better finished, the carry error can not occur, and the angle identification precision is extremely high under the condition of large angle identification information quantity.
The preferred scheme of the invention is as follows: the transmitting and receiving board 12 is installed in the transmitting and receiving board protection box 11, and the transmitting and receiving protection box 11 is installed on the character wheel shaft 10. This scheme structure can further guarantee that the transmission receiving plate does not receive the moisture to disturb in wet-type water gauge is used, improves the product precision.
The two symmetrical coils with opposite winding directions of the cross-connected reflecting coil 15 of the present invention occupy 90-degree sector areas respectively. The preferred solution is the lowest cost.
The present invention has been described in the case of 2-phase (a-phase, B-phase) reception, and actually the present invention is not limited to the use of only 2-phase reception, and may be used with three-phase, or more. Taking three-phase reception as an example, the optimal angle occupied by the two sub-coils of the reflection coil on the reflection sheet 4 becomes: 360/6 = 60 degrees, 3-phase reception needs to be arranged on the transmitting and receiving board 12, which becomes a phase a, a phase B, and a phase C, each phase of receiving coil is still formed by 2 sub-coils in cross-series connection, and the 2 sub-coils are arranged diagonally, and occupy the angle: 60 degrees, each phase occupies 120 degrees, and three phases occupy 360 degrees of the whole circumference
The transmitting coil 17 is circular, the winding directions of the two A-phase receiving coils are opposite, the winding directions of the two B-phase receiving coils are opposite, and the A-phase receiving coil and the B-phase receiving coil are staggered by 90 degrees. Each of the phase a receiving coils 18 and each of the phase B receiving coils 19 is a sector area distributed at 90 degrees. The scheme is the optimal effect achieving preferable scheme adopting 2-phase receiving.
The reflecting sheet 4 of the present invention is a circular sheet. The circular sheet is the preferred scheme with the best effect, but the oval, square and polygonal shapes can also achieve the using effect, so long as the symmetry of the magnetic flux is ensured.
The invention relates to a reflector plate, wherein 1 circular receiving coil 16 corresponds to more than 2 crossed and interconnected reflecting coils 15. One of such preferable schemes may also be that 1 circular receiving coil corresponds to one cross-connection reflecting coil, or 2 circular receiving coils correspond to 4 cross-connection reflecting coils, and so on.
The further scheme of the invention is as follows: the circular receiving coil 16 is a coil with 4 turns, the cross-linked reflection coil 15 is a coil with 4 turns, the center of the reflection sheet 4 is provided with a shaft hole 23, the edge of the reflection sheet 4 is provided with a metal wire via hole 22, and the coil on the reflection sheet 4 is arranged on the circular surface of the reflection sheet or the surface with the thickness of the reflection sheet. The plane of the transmitting and receiving plate is vertical to the character wheel shaft and parallel to the reflecting sheet on the character wheel.
The reflecting sheet is preferably made of a PCB (printed Circuit Board), enameled wires or other conducting wires with insulating layers can also be used for directly winding according to the method of the invention, and the transmitting and receiving plate can also be directly wound by enameled wires or insulated conducting wires in the same way.
The receiving coil and the transmitting coil on the transmitting and receiving board are electrically independent and are not connected in series.
In the figure, 3 is a connecting piece of the advancing wheel, 7 is knurling of a character wheel shaft, 8 is a sealing ring, 13 is 20 teeth, 20 is a through shaft hole, and 21 is a receiving coil which is connected with B and is at the diagonal position of the receiving coil.
Claims (9)
1. The utility model provides a passive high frequency induction method is counter for direct-reading metering device, includes several character wheel (6) and into position wheel (5), sets up 0-9 ten figures on the face of cylinder on character wheel (6), sets up the tooth on into position wheel (5), and a side edge circumference of character wheel (6) sets up the several and pulls out the tooth, its characterized in that: the multiple character wheels (6) are all installed on a character wheel shaft (10), the multiple advancing wheels (5) are all installed on a carry wheel shaft (2), the character wheel shaft (10) and the carry wheel shaft (2) are all installed on a support (1), a cavity is formed in the end face, provided with multiple tooth pulling teeth, of each character wheel (6), a reflection sheet (4) is installed in the cavity, a transmitting and receiving plate (12) is installed on one side, corresponding to the character wheel (6) where the reflection sheet (4) is installed, the transmitting and receiving plate (12) is installed on the character wheel shaft (10), a first metal coil is arranged on each reflection sheet (4) and comprises a circular receiving coil (16) and a cross interconnection reflection coil (15), the circular receiving coil (16) is provided with an opening (14), a metal wire at the end of the opening (14) is connected with a metal wire of the cross interconnection reflection coil (15), the cross interconnection reflection coil (15) is composed of 2 symmetrical coils which are opposite in winding direction, a second metal coil is arranged on the transmitting and receiving coil (12), a second metal coil comprises a transmitting coils (17), a connecting coils (18) and a take-up coils (19), and two take-up coils (18) which are symmetrically distributed and are connected; two symmetrical coils of the cross-connected reflection coil (15) with opposite winding directions occupy sectors of 90 degrees respectively.
2. The passive high-frequency induction method direct-reading type meter counter according to claim 1, characterized in that: the transmitting and receiving plate (12) is arranged in the transmitting and receiving plate protection box (11), and the transmitting and receiving plate protection box (11) is arranged on the character wheel shaft (10).
3. The meter of claim 1 for a direct-reading meter using passive high-frequency induction
The device is characterized in that: the transmitting coil (17) is circular, the winding directions of the two A-phase receiving coils are opposite, the winding directions of the two B-phase receiving coils are opposite, and the A-phase receiving coil and the B-phase receiving coil are staggered by 90 degrees.
4. The passive high-frequency induction method direct-reading type meter counter according to claim 1, characterized in that: each phase A receiving coil (18) and each phase B receiving coil (19) are sector areas distributed at 90 degrees.
5. The counter of claim 1, wherein the counter comprises: the reflective sheet (4) is a circular sheet.
6. The passive high-frequency induction method direct-reading type meter counter according to claim 1, characterized in that: and 1 circular receiving coil (16) on the reflector plate corresponds to more than 2 crossed interconnected reflecting coils (15).
7. The counter of claim 1, wherein the counter comprises: the circular receiving coil (16) is a 4-turn coil, and the cross-connected reflecting coil (15) is a 4-turn coil.
8. The counter of claim 1, wherein the counter comprises: the center of the reflector plate (4) is provided with a shaft hole (23), and the edge of the reflector plate (4) is provided with a metal wire through hole (22).
9. The passive high-frequency induction method direct-reading type meter counter according to claim 1, characterized in that: the coils on the reflector plate (4) are arranged on the circular surface of the reflector plate or on the surface of the thickness of the reflector plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710034668.1A CN106767990B (en) | 2017-01-18 | 2017-01-18 | Counter for passive high-frequency induction direct-reading metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710034668.1A CN106767990B (en) | 2017-01-18 | 2017-01-18 | Counter for passive high-frequency induction direct-reading metering device |
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| Publication Number | Publication Date |
|---|---|
| CN106767990A CN106767990A (en) | 2017-05-31 |
| CN106767990B true CN106767990B (en) | 2023-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710034668.1A Active CN106767990B (en) | 2017-01-18 | 2017-01-18 | Counter for passive high-frequency induction direct-reading metering device |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1687716A (en) * | 2005-04-30 | 2005-10-26 | 浙江大学 | Wireless and passive water meter and gas meter |
| CN101740217A (en) * | 2008-11-11 | 2010-06-16 | 爱三工业株式会社 | Resolver |
| CN102055295A (en) * | 2009-11-09 | 2011-05-11 | 爱三工业株式会社 | Rotation angle sensor |
| CN102607661A (en) * | 2012-03-30 | 2012-07-25 | 陈健 | Electronic direct-reading counter for wet type water meter |
| CN102628703A (en) * | 2012-03-01 | 2012-08-08 | 陈健 | Electronic direct reading counter of meter |
| TWM459471U (en) * | 2013-03-29 | 2013-08-11 | Footwear & Recreation Technology Res Inst | Passive ultra-high frequency electronic tag device |
| CN103453927A (en) * | 2013-08-31 | 2013-12-18 | 刁宇浩 | Data direct-reading device of intelligent metering device |
| CN204115800U (en) * | 2014-09-12 | 2015-01-21 | 浙江松川仪表科技股份有限公司 | Direct reading character |
-
2017
- 2017-01-18 CN CN201710034668.1A patent/CN106767990B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1687716A (en) * | 2005-04-30 | 2005-10-26 | 浙江大学 | Wireless and passive water meter and gas meter |
| CN101740217A (en) * | 2008-11-11 | 2010-06-16 | 爱三工业株式会社 | Resolver |
| CN102055295A (en) * | 2009-11-09 | 2011-05-11 | 爱三工业株式会社 | Rotation angle sensor |
| CN102628703A (en) * | 2012-03-01 | 2012-08-08 | 陈健 | Electronic direct reading counter of meter |
| CN102607661A (en) * | 2012-03-30 | 2012-07-25 | 陈健 | Electronic direct-reading counter for wet type water meter |
| TWM459471U (en) * | 2013-03-29 | 2013-08-11 | Footwear & Recreation Technology Res Inst | Passive ultra-high frequency electronic tag device |
| CN103453927A (en) * | 2013-08-31 | 2013-12-18 | 刁宇浩 | Data direct-reading device of intelligent metering device |
| CN204115800U (en) * | 2014-09-12 | 2015-01-21 | 浙江松川仪表科技股份有限公司 | Direct reading character |
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| CN106767990A (en) | 2017-05-31 |
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