CN110320404B - Analog-to-digital conversion sensor - Google Patents
Analog-to-digital conversion sensor Download PDFInfo
- Publication number
- CN110320404B CN110320404B CN201910706353.6A CN201910706353A CN110320404B CN 110320404 B CN110320404 B CN 110320404B CN 201910706353 A CN201910706353 A CN 201910706353A CN 110320404 B CN110320404 B CN 110320404B
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- Prior art keywords
- analog
- digital conversion
- conversion output
- digital
- shunt
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/20—Modifications of basic electric elements for use in electric measuring instruments; Structural combinations of such elements with such instruments
- G01R1/203—Resistors used for electric measuring, e.g. decade resistors standards, resistors for comparators, series resistors, shunts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
The invention discloses an analog-to-digital conversion sensor. The device comprises an analog-to-digital conversion output board, a shunt and a connecting point; the connecting points are arranged on two sides of the resistor body of the shunt; the analog-digital conversion output plate is provided with a connecting hole; the connecting hole is matched with the connecting point; the analog-to-digital conversion output plate is connected with the shunt through the connecting hole and the connecting point; the analog-to-digital conversion output board is used for converting the analog signals generated by the current divider into digital signals for output. The invention clings the analog-digital conversion output board to the current divider by utilizing the characteristic that the digital signal is not interfered by the magnetic field, thereby greatly reducing the surrounding area of the analog signal output of the current divider and further reducing the magnetic field interference. And the connection point circuit on the analog-digital conversion output board can flexibly design anti-magnetic field interference wiring according to the electromagnetic law.
Description
Technical Field
The invention relates to the field of analog-to-digital conversion, in particular to an analog-to-digital conversion sensor.
Background
The current divider is widely applied to the fields of instruments and meters, electronic complete machines, automatic control and the like, and plays roles of current limiting, current sharing, sampling detection and the like; the shunt has the advantages of high sensitivity, quick response, good linearity, small resistance temperature coefficient and the like, and is particularly applied to metering and detecting currents in a large quantity. The current widely used current divider connects sampling lines respectively at both ends of the resistor disc to transmit analog signals to the circuit board, according to the law of electromagnetic induction: any magnetic flux change will generate an induced current in the closed loop and any ac current will generate an electromagnetic field in space. The surrounding area generated by the sampling line of the shunt connected to the circuit board is easily interfered by the electromagnetic field, and the larger the surrounding area is, the larger the surrounding area is interfered by the electromagnetic field, so that the accuracy of the output signal of the shunt is seriously affected.
Disclosure of Invention
The invention aims to provide an analog-to-digital conversion sensor which is used for reducing the surrounding area of analog signal output of a shunt, reducing magnetic field interference and converting analog signals into digital signals more accurately.
In order to achieve the above object, the present invention provides the following solutions:
An analog-to-digital conversion sensor comprises an analog-to-digital conversion output plate, a shunt and a connecting point; the connecting points are arranged on two sides of the resistor body of the shunt; the analog-digital conversion output plate is provided with a connecting hole; the connecting hole is matched with the connecting point; the analog-to-digital conversion output plate is connected with the shunt through the connecting hole and the connecting point; the analog-to-digital conversion output board is used for converting the analog signals generated by the current divider into digital signals for output.
Optionally, the analog-to-digital conversion output board comprises a digital signal communication end and a circuit board; the circuit board is provided with a connecting hole; the digital signal communication terminal is used for outputting the converted digital signal.
Optionally, the analog-to-digital conversion output board is further provided with an analog-to-digital conversion chip and a filter element.
Optionally, the analog-to-digital conversion output board is further provided with a power input end, which is used for providing power for the analog-to-digital conversion chip and the filtering element.
Optionally, the connection points include at least two.
Optionally, the diverter is provided with a mounting hole.
An analog-to-digital conversion sensor comprises an analog-to-digital conversion output plate, a shunt and a connecting point; the connecting points are arranged on two sides of the resistor body of the shunt; the analog-digital conversion output plate is provided with a connecting hole; the analog-to-digital conversion output board comprises a first circuit board, wherein a through hole is formed in the first circuit board; the connecting hole is matched with the connecting point; the analog-to-digital conversion output plate is connected with the shunt through the connecting hole and the connecting point; the analog-to-digital conversion output board is used for converting the analog signals generated by the current divider into digital signals for output; the analog-to-digital conversion output board comprises a digital signal communication end, wherein the digital signal communication end is used for outputting a converted digital signal; the first circuit board is provided with a through hole, and the through hole is matched with the digital signal communication end.
Optionally, the analog-to-digital conversion output board further comprises a second circuit board, and a connecting hole is formed in the second circuit board.
Optionally, the connection points include at least two.
Compared with the prior art, the invention has the following technical effects: according to the invention, the output signal of the analog-to-digital conversion output plate is a digital signal, and the analog-to-digital conversion output plate is tightly attached to the current divider by utilizing the characteristic that the digital signal is not interfered by a magnetic field, so that the surrounding area of the analog signal output of the current divider is greatly reduced, and the magnetic field interference is reduced. And the connection point circuit on the analog-digital conversion output board can flexibly design anti-magnetic field interference wiring according to the electromagnetic law.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an analog-to-digital conversion sensor according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an analog-to-digital conversion sensor according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a second embodiment of an analog-to-digital conversion sensor;
FIG. 4 is a schematic diagram of a second embodiment of the invention with a mounted analog-to-digital conversion sensor;
fig. 5 is a schematic front view of an installed analog-to-digital conversion sensor according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide an analog-to-digital conversion sensor which is used for reducing the surrounding area of analog signal output of a shunt, reducing magnetic field interference and converting analog signals into digital signals more accurately.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
Embodiment one:
As shown in fig. 1, the analog-to-digital conversion sensor includes an analog-to-digital conversion output board 1, a shunt 2, and a connection point 3. The connection points 3 are arranged on both sides of the resistor body of the shunt 2. The analog-digital conversion output board 1 comprises a digital signal communication end 13 and a circuit board 12, wherein a connecting hole 11 is arranged on the circuit board 12, and the digital signal communication end is used for outputting the converted digital signal. The connecting hole 11 is matched with the connecting point 3; the analog-digital conversion output board 1 is connected with the current divider 2 through the connecting hole 11 and the connecting point 3, so that the analog-digital conversion output board 1 is tightly attached to the current divider 2. The analog-to-digital conversion output board 1 is used for converting the analog signal generated by the current divider 2 into a digital signal for output.
The connection point 3 comprises at least two.
The analog-digital conversion output board 1 is also provided with an analog-digital conversion chip, a filter element and a power input end. The power input end is used for providing power for the analog-to-digital conversion chip and the filter element.
The diverter is provided with mounting holes 21 for mounting terminal buttons.
The connection point and the connection hole are fixed through riveting or welding, and the installed analog-digital conversion sensor is shown in fig. 2.
Embodiment two:
As shown in fig. 3, the analog-to-digital conversion sensor comprises an analog-to-digital conversion output board 1, a shunt 2 and a connection point 3. The connection points 3 are arranged on both sides of the resistor body of the shunt 2. The connection point 3 comprises at least two. The analog-digital conversion output board 1 comprises a second circuit board 12, and a connecting hole 11 is arranged on the second circuit board 12. The connecting hole 11 is matched with the connecting point 3. The analog-digital conversion output board 1 and the shunt 2 are connected through the connecting hole 11 and the connecting point 3. The analog-to-digital conversion output board 1 is used for converting the analog signal generated by the current divider 2 into a digital signal for output. The analog-digital conversion output board 1 further comprises a digital signal communication end 13, and the digital signal communication end 13 is used for outputting the converted digital signal. The analog-digital conversion output board 1 further comprises a first circuit board 14, a through hole 141 is arranged on the first circuit board, and the through hole 141 is matched with the digital signal communication terminal 13. The analog-to-digital conversion output plate 1 is tightly attached to the shunt 2, so that the area of the shunt for outputting analog signals is greatly reduced, and the magnetic field interference is reduced.
The diverter is provided with mounting holes 21 for mounting terminal buttons.
The connection point and the connection hole are fixed through riveting or welding, and the installed analog-digital conversion sensor is shown in fig. 4 and 5.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects: according to the invention, the output signal of the analog-to-digital conversion output plate is a digital signal, and the analog-to-digital conversion output plate is tightly attached to the current divider by utilizing the characteristic that the digital signal is not interfered by a magnetic field, so that the surrounding area of the analog signal output of the current divider is greatly reduced, and the magnetic field interference is reduced. And the connection point circuit on the analog-digital conversion output board can flexibly design anti-magnetic field interference wiring according to the electromagnetic law.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to assist in understanding the methods of the present invention and the core ideas thereof; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (1)
1. An analog-to-digital conversion sensor is characterized by comprising an analog-to-digital conversion output plate, a shunt and a connecting point; the connecting points are arranged on two sides of the resistor body of the shunt; the analog-to-digital conversion output board comprises a first circuit board and a second circuit board; the first circuit board is provided with a through hole; the second circuit board; the connecting hole is arranged on the connecting plate; the connecting hole is matched with the connecting point; the analog-to-digital conversion output plate is connected with the shunt through the connecting hole and the connecting point; the analog-to-digital conversion output board is used for converting the analog signals generated by the current divider into digital signals for output; the analog-to-digital conversion output board comprises a digital signal communication end, wherein the digital signal communication end is used for outputting a converted digital signal; the through hole is matched with the digital signal communication end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910706353.6A CN110320404B (en) | 2019-08-01 | 2019-08-01 | Analog-to-digital conversion sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910706353.6A CN110320404B (en) | 2019-08-01 | 2019-08-01 | Analog-to-digital conversion sensor |
Publications (2)
| Publication Number | Publication Date |
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| CN110320404A CN110320404A (en) | 2019-10-11 |
| CN110320404B true CN110320404B (en) | 2024-08-09 |
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| CN201910706353.6A Active CN110320404B (en) | 2019-08-01 | 2019-08-01 | Analog-to-digital conversion sensor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102020003458A1 (en) * | 2020-06-09 | 2021-12-09 | Wieland-Werke Aktiengesellschaft | Method for producing a device for measuring current intensities and device for measuring current intensities |
| DE102022109708B4 (en) * | 2022-04-22 | 2023-12-14 | Isabellenhütte Heusler Gmbh & Co. Kg | Current measuring device and associated manufacturing process |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103176019A (en) * | 2013-03-23 | 2013-06-26 | 桐乡市伟达电子有限公司 | High-precision diverter |
| CN210376508U (en) * | 2019-08-01 | 2020-04-21 | 桐乡市伟达电子有限公司 | Analog-digital conversion sensor |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8144446B2 (en) * | 2008-07-23 | 2012-03-27 | Maxim Integrated Products, Inc. | Isolated current sensor |
| CN202903841U (en) * | 2012-11-26 | 2013-04-24 | 厦门宏发电力电器有限公司 | Electronic watt-hour meter capable of resisting alternating magnetic field interference |
| CN206208966U (en) * | 2016-07-13 | 2017-05-31 | 南京铁道职业技术学院 | City rail integrated form direct current current divider |
| CN106680579A (en) * | 2017-02-22 | 2017-05-17 | 浙江零跑科技有限公司 | Circuit module of integrated multi-function detection and sampling method |
| CN107271744B (en) * | 2017-07-03 | 2020-03-24 | 杭州海兴电力科技股份有限公司 | Lead structure of manganin shunt, PCB and wiring structure of PCB |
| CN108226631B (en) * | 2017-12-27 | 2024-02-23 | 深圳市科陆电子科技股份有限公司 | Single-phase metering module for resisting magnetic field interference |
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- 2019-08-01 CN CN201910706353.6A patent/CN110320404B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103176019A (en) * | 2013-03-23 | 2013-06-26 | 桐乡市伟达电子有限公司 | High-precision diverter |
| CN210376508U (en) * | 2019-08-01 | 2020-04-21 | 桐乡市伟达电子有限公司 | Analog-digital conversion sensor |
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| Publication number | Publication date |
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| CN110320404A (en) | 2019-10-11 |
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