CN205643669U - Magnetic field intensity detects external member - Google Patents
Magnetic field intensity detects external member Download PDFInfo
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- CN205643669U CN205643669U CN201620451916.3U CN201620451916U CN205643669U CN 205643669 U CN205643669 U CN 205643669U CN 201620451916 U CN201620451916 U CN 201620451916U CN 205643669 U CN205643669 U CN 205643669U
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- circuit
- magnetic field
- field intensity
- external member
- output interface
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Abstract
The utility model relates to a magnetic field intensity detects external member, it includes that alternate segregation ground sets up test probe, processing apparatus and acquisition board card on circuit board independent separately. Wherein, test probe including set up hall element on the first circuit board, with the electric signal output interface of being connected of hall element, processing apparatus is including setting up signal input interface, treatment circuit, the analog data output interface on second Circuit Board, last analog data input interface, AD converting circuit, the digital data output interface of being provided with of acquisition board card for the conveying digital data to the industrial computer in order to carry out further analysis processes. Implement the utility model discloses, because test probe, processing apparatus and the separation of acquisition board card three can realize that magnetic field intensity (magnetic flux) surveys, the function of signal processing phase separation, it is integrated to the various online production and check out test set in with magnetic field intensity detection device to be convenient for, has the advantage of flexibility ratio height, easy dismouting, easy integration, good reliability.
Description
Technical field
This utility model relates to magnetic field detection field, more particularly, it relates to a kind of magnetic field intensity detection external member.
Background technology
Magnetic phenomenon is a kind of the earliest by the physical phenomenon of human knowledge, along with developing rapidly of scientific and technological level, plays the part of the most important role at aspects such as industry, medical treatment and lives.In recent years, the new opplication on individual intelligent terminal, such as magnetic connectivity port, the brightest puts out screen etc., it is necessary to when production and assembly terminal unit, measure magnetic field intensity in real time.Existing magnetic field intensity detection equipment is mostly special equipment, integrate signal detection, process, the functional module such as analysis, volume takes up space greatly, and lacks motility, convenience, and inconvenience embeds in various online productions and detection equipment, use cost height.
Accordingly, it would be desirable to develop a kind of detection device that can meet the requirements such as high, easy to assemble, easy of integration, the good reliability of flexibility ratio.
Utility model content
The technical problems to be solved in the utility model is, for the drawbacks described above of prior art, it is provided that a kind of magnetic field intensity detection external member.
This utility model solves its technical problem and be the technical scheme is that structure a kind of magnetic field intensity detection external member, and it includes detection probe, processing means and the analog input card being arranged on separated from each other on the most independent circuit board, wherein:
Described detection probe includes for sensing magnetic field intensity and producing the signal output interface that the Hall element of corresponding electric potential difference signal electrically connects with Hall element, and described Hall element and described signal output interface are arranged on first circuit board；
Described processing means includes the signal input interface for receiving described electric potential difference signal, for described electric potential difference signal processes the analog data output interface being connected with described process circuit with the process circuit generated with the analog data of described electric potential difference signal correction；Described signal input interface, process circuit and described analog data output interface are arranged on second circuit board；
Being provided with the analog data input interface for connecting with described process circuit on described analog input card, generating the A/D change-over circuit of corresponding numerical data for described analog data being carried out A/D conversion, for the numerical data output interface being connected with industrial computer, to transmit described numerical data to described industrial computer to be further analyzed process.
In magnetic field intensity described in the utility model detection external member, including
It is connected cable with the first of described processing means for connecting described detection probe；And
It is connected cable with the second of described analog input card for connecting described processing means.
In magnetic field intensity described in the utility model detection external member,
Cable one end is connected with the signal output interface being arranged on described first circuit board, the other end is connected with the signal input interface on described second circuit board in described first connection；
Cable one end is connected with the analog data output interface being arranged on described second circuit board, the other end is connected with the analog data input interface on described analog input card in described second connection.
In magnetic field intensity described in the utility model detection external member,
Described analog input card is pci bus analog data collection card, and it is placed on the PCI slot of described industrial computer base plate, and the numerical data output interface of described analog input card docks with described PCI slot.
In magnetic field intensity described in the utility model detection external member, described first circuit board is arranged on the probe base plate that weak magnetic material is made, and described second circuit board is arranged on the fixing substrate that metal material is made.
In magnetic field intensity described in the utility model detection external member,
Described processing means includes: for providing power-switching circuit and the constant-current source circuit of working power for described process circuit and detection probe, wherein said power-switching circuit includes that direct current 24V turns +/-15V change-over circuit ,+15V turns+10V change-over circuit ,+10V turns+5V change-over circuit and-15V turns-5V change-over circuit.
In magnetic field intensity described in the utility model detection external member, described process circuit includes:
Electric potential difference signal for producing described Hall element is filtered and the bias amplifier of processing and amplifying；
For the amplitude adjustable amplifying circuit that the amplitude of the output signal of bias amplifier is adjusted；And
For the output signal of amplitude amplifying circuit being carried out the differential transformation circuit of differential transformation.
In magnetic field intensity described in the utility model detection external member,
Described+15V turns+10V change-over circuit for providing running voltage for described constant-current source circuit；
Described+10V turns+5V change-over circuit for providing reference voltage for described constant-current source circuit and providing positive running voltage for described bias amplifier, amplitude amplifying circuit and differential transformation circuit；
Described-15V turns-5V change-over circuit for providing negative running voltage for described bias amplifier, amplitude amplifying circuit and differential transformation circuit.
Implement magnetic field intensity of the present utility model detection external member, have the advantages that the electric potential difference signal that the Hall element being arranged on independent circuits plate produces, after configured process circuit on another independent circuits plate processes, the electric potential difference signal characterizing magnetic field intensity is converted into the voltage signal that computer card (i.e. analog input card) can identify, processed by the A/D change-over circuit on analog input card again, the numerical data characterizing magnetic field intensity is sent into computer and is analyzed.Owing to detection probe, processing means separate with analog input card three, the function that magnetic field intensity (magnetic flux) detects, signal processing is separated can be realized, it is easy to be integrated in various online production and detection equipment, has that flexibility ratio is high, easy to assemble, easy of integration, the advantage of good reliability.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the structured flowchart of this utility model magnetic field intensity detection external member；
Fig. 2 is the structural representation of detection probe in this utility model magnetic field intensity detection external member；
Fig. 3 is the structural representation of processing means in this utility model magnetic field intensity detection external member；
Fig. 4 is the structural representation of analog input card in this utility model magnetic field intensity detection external member；
Fig. 5 is that+the 15V in the processing means of this utility model magnetic field intensity detection external member is to+10V change-over circuit schematic diagram；
Fig. 6 is that the 24V in the processing means of this utility model magnetic field intensity detection external member is to +/-15V change-over circuit schematic diagram；
Fig. 7 is that-the 15V in the processing means of this utility model magnetic field intensity detection external member is to-5V change-over circuit schematic diagram；
Fig. 8 is that+the 10V in the processing means of this utility model magnetic field intensity detection external member is to+5V change-over circuit schematic diagram；
Fig. 9 is the constant-current source circuit schematic diagram in the processing means of this utility model magnetic field intensity detection external member；
Figure 10 is the bias amplifier schematic diagram in the processing means of this utility model magnetic field intensity detection external member；
Figure 11 is the amplitude adjustable amplifying circuit schematic diagram in the processing means of this utility model magnetic field intensity detection external member；
Figure 12 is the differential conversion circuit schematic diagram in the processing means of this utility model magnetic field intensity detection external member；
Figure 13 is the Hall element operation principle schematic diagram in this utility model magnetic field intensity detection external member；
Figure 14 is the magnetic field intensity that records of the detecting element graph of a relation with the electric potential difference of generation of this utility model magnetic field intensity detection external member；
It is the signal output waveform figure of Hall element in this utility model magnetic field intensity detection external member shown in Figure 15 a, and Figure 10 visits voltage waveform between point a and b；
It is the output waveform figure of bias amplifier in this utility model magnetic field intensity detection external member shown in Figure 15 b, and Figure 10 visits a some c voltage-to-ground waveform；
It is the amplitude amplifying circuit output waveform figure in this utility model magnetic field intensity detection external member shown in Figure 16 a, and Figure 11 visits some d voltage-to-ground waveform；
Shown in Figure 16 b is the output waveform figure of the differential transformation circuit in this utility model magnetic field intensity detection external member, and visits point e and f voltage-to-ground waveform respectively in Figure 12.
Detailed description of the invention
Understanding in conjunction with Fig. 1-4, magnetic field intensity of the present utility model detection external member includes detection probe 1, processing means 2 and the analog input card 3 being arranged on separated from each other on the most independent circuit board.
As in figure 2 it is shown, detection probe 1 includes for sensing magnetic field intensity and producing the Hall element 12 of corresponding electric potential difference signal and electrically connect the signal output interface 17 of (not shown) with Hall element.Hall element 12 and signal output interface 17 are arranged on first circuit board 1a, and first circuit board 1a is arranged on the probe base plate 1b that weak magnetic material (such as copper, aluminum etc.) is made.
As it is shown on figure 3, processing means 2 includes the signal input interface 27 for receiving electric potential difference signal, for electric potential difference signal processes the analog data output interface 28 being connected with process circuit 21 and the process circuit of the analog data of electric potential difference signal correction with generation.Signal input interface 27, process circuit 21 and analog data output interface 28 are arranged at 2a on second circuit board, second circuit board 2a and are arranged on the fixing substrate 2b that metal material is made.
As shown in Figure 4, the A/D change-over circuit for the analog data input interface 38 processing circuit connection, changing the corresponding numerical data of generation for analog data being carried out A/D it is provided with, for the numerical data output interface being connected with industrial computer, to transmit numerical data to industrial computer to be further analyzed process on analog input card 3.
Magnetic field intensity of the present utility model detection external member also includes that the first connection cable 7 and second connects cable 8.
As shown in Figures 2 and 3, the first connection cable 7 is used for connecting detection probe and processing means.
As shown in Figures 3 and 4, the second connection cable 8 is used for connecting processing means and analog input card.
Wherein, cable 7 one end is connected with the signal output interface 17 being arranged on first circuit board 1a, the other end is connected with the signal input interface 27 on second circuit board 2a in the first connection.
Cable 8 one end is connected with the analog data output interface 28 being arranged on second circuit board 2a, the other end is connected with the analog data input interface 38 on analog input card 3 in second connection.
In an embodiment of the present utility model, analog input card is pci bus analog data collection card, and it is placed on the PCI slot of industrial computer base plate, and the numerical data output interface of analog input card docks with PCI slot.
Referring back to Fig. 1, processing means 2 also includes: for providing power-switching circuit 23 and the constant-current source circuit 25 of working power for process circuit 21 and detection probe 1.Wherein power-switching circuit 23 includes that direct current 24V turns +/-15V change-over circuit ,+15V turns+10V change-over circuit ,+10V turns+5V change-over circuit and-15V turns-5V change-over circuit, sees Fig. 5-8.Wherein ,+the 15V during Fig. 5 is the processing means of this utility model magnetic field intensity detection external member is to+10V change-over circuit schematic diagram；Fig. 6 is that the 24V in the processing means of this utility model magnetic field intensity detection external member is to +/-15V change-over circuit schematic diagram；Fig. 7 is that-the 15V in the processing means of this utility model magnetic field intensity detection external member is to-5V change-over circuit schematic diagram；Fig. 8 is that+the 10V in the processing means of this utility model magnetic field intensity detection external member is to+5V change-over circuit schematic diagram.
Fig. 9 is the constant-current source circuit schematic diagram in the processing means of the magnetic field intensity detection external member according to this utility model one embodiment.Above-mentioned+15V turns+10V change-over circuit for providing running voltage for constant-current source circuit 25, it addition, turned+5V change-over circuit by+10V to provide reference voltage for constant-current source circuit 25.Constant-current source circuit provides running voltage for Hall element.
Process circuit 21 in the processing means of this utility model magnetic field intensity detection external member includes: the electric potential difference signal for producing Hall element is filtered and the bias amplifier of processing and amplifying；For the amplitude adjustable amplifying circuit that the amplitude of the output signal of bias amplifier is adjusted；And for the output signal of amplitude amplifying circuit being carried out the differential transformation circuit of differential transformation.
Figure 10 is the schematic diagram of bias amplifier one embodiment in the processing means of this utility model magnetic field intensity detection external member.Electric potential difference signal from Hall element two ends is filtered processing by bias amplifier, is then amplified, and biasing circuit is made up of R13, R14, R15 in Figure 10.
Figure 11 is the schematic diagram of amplitude adjustable amplifying circuit one embodiment in the processing means of this utility model magnetic field intensity detection external member.As shown in figure 11, amplitude regulation is realized by R16, R18.
Figure 12 is the schematic diagram of differential conversion circuit one embodiment in the processing means of this utility model magnetic field intensity detection external member.Differential conversion circuit is made up of the reverse amplification circuit of U3, R17 and R22 group.
Above-mentioned+10V turn+5V change-over circuit be bias amplifier, amplitude amplifying circuit and differential transformation circuit positive running voltage is provided；-/15V turns-5V change-over circuit for providing negative running voltage for bias amplifier, amplitude amplifying circuit and differential transformation circuit.
Figure 13 is the Hall element operation principle schematic diagram in this utility model magnetic field intensity detection external member.Figure 14 is the magnetic field intensity that records of the detecting element graph of a relation with the electric potential difference of generation of this utility model magnetic field intensity detection external member.As shown in figure 13, being definite value in a cross section, be definite value by the electric current of C1, C2, electric potential difference Vb at C3, C4 two ends is directly proportional to magnetic field intensity B of this cross section normal direction, as shown in figure 14.
Waveform 1 shown in Figure 15 a is the signal output waveform figure of the Hall element in this utility model magnetic field intensity detection external member, and visits voltage waveform between point a and b in Figure 10.
Waveform 2 shown in Figure 15 b is the output waveform figure of the bias amplifier (shown in Figure 10) in this utility model magnetic field intensity detection external member, and visits some c voltage-to-ground waveform in Figure 10.
Waveform 3 shown in Figure 16 a is to visit some d voltage-to-ground waveform in amplitude amplifying circuit (shown in Figure 11) output waveform figure, and Figure 11 in this utility model magnetic field intensity detection external member.
Waveform 4 shown in Figure 16 b is the output waveform figure of the differential transformation circuit (shown in Figure 12) in this utility model magnetic field intensity detection external member, and visits point e and f voltage-to-ground waveform respectively in Figure 12.
Above example only for technology of the present utility model design and feature are described, its object is to allow person skilled in the art will appreciate that content of the present utility model and to implement accordingly, can not limit protection domain of the present utility model.All impartial changes done with this utility model right and modification, all should belong to the covering scope of this utility model claim.
Claims (8)
1. a magnetic field intensity detection external member, it is characterised in that include detection probe (1), processing means (2) and the analog input card (3) being arranged on separated from each other on the most independent circuit board, wherein:
Described detection probe (1) includes for sensing magnetic field intensity and producing the signal output interface (17) that the Hall element (12) of corresponding electric potential difference signal electrically connects with Hall element, and described Hall element (12) and described signal output interface (17) are arranged on first circuit board (1a)；
Described processing means (2) includes the signal input interface (27) for receiving described electric potential difference signal, for described electric potential difference signal processes the analog data output interface (28) being connected with described process circuit with the process circuit (21) of the analog data of described electric potential difference signal correction with generation；Described signal input interface (27), process circuit (21) and analog data output interface (28) are arranged on second circuit board (2a)；
Being provided with the analog data input interface (38) for connecting with described process circuit on described analog input card (3), generating the A/D change-over circuit of corresponding numerical data for described analog data being carried out A/D conversion, for the numerical data output interface being connected with industrial computer, to transmit described numerical data to described industrial computer to be further analyzed process.
Magnetic field intensity the most according to claim 1 detection external member, it is characterised in that include
It is connected cable (7) with the first of described processing means for connecting described detection probe；And
It is connected cable (8) with the second of described analog input card for connecting described processing means.
Magnetic field intensity the most according to claim 2 detection external member, it is characterised in that
Cable (7) one end is connected with the signal output interface (17) being arranged on described first circuit board, the other end is connected with the signal input interface (27) on described second circuit board in described first connection；
Cable (8) one end is connected with the analog data output interface (28) being arranged on described second circuit board, the other end is connected with the analog data input interface (38) on described analog input card in described second connection.
Magnetic field intensity the most according to claim 1 detection external member, it is characterised in that
Described analog input card is pci bus analog data collection card, and it is placed on the PCI slot of described industrial computer base plate, and the numerical data output interface of described analog input card docks with described PCI slot.
Magnetic field intensity the most according to claim 1 detection external member, it is characterized in that, described first circuit board (1a) is arranged on the probe base plate (1b) that weak magnetic material is made, and described second circuit board (2a) is arranged on the fixing substrate (2b) that metal material is made.
Magnetic field intensity the most according to claim 1 detection external member, it is characterised in that
Described processing means (2) including: for providing power-switching circuit (23) and the constant-current source circuit (25) of working power for described process circuit (21) and detection probe (1), wherein said power-switching circuit (23) includes that direct current 24V turns +/-15V change-over circuit ,+15V turns+10V change-over circuit ,+10V turns+5V change-over circuit and-15V turns-5V change-over circuit.
Magnetic field intensity the most according to claim 6 detection external member, it is characterised in that described process circuit (21) including:
Electric potential difference signal for producing described Hall element is filtered and the bias amplifier of processing and amplifying；
For the amplitude adjustable amplifying circuit that the amplitude of the output signal of bias amplifier is adjusted；And
For the output signal of amplitude amplifying circuit being carried out the differential transformation circuit of differential transformation.
Magnetic field intensity the most according to claim 7 detection external member, it is characterised in that
Described+15V turns+10V change-over circuit for providing running voltage for described constant-current source circuit (25)；
Described+10V turns+5V change-over circuit for providing reference voltage for described constant-current source circuit (25) and providing positive running voltage for described bias amplifier, amplitude amplifying circuit and differential transformation circuit；
Described-15V turns-5V change-over circuit for providing negative running voltage for described bias amplifier, amplitude amplifying circuit and differential transformation circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620451916.3U CN205643669U (en) | 2016-05-17 | 2016-05-17 | Magnetic field intensity detects external member |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620451916.3U CN205643669U (en) | 2016-05-17 | 2016-05-17 | Magnetic field intensity detects external member |
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| CN205643669U true CN205643669U (en) | 2016-10-12 |
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| CN201620451916.3U Expired - Fee Related CN205643669U (en) | 2016-05-17 | 2016-05-17 | Magnetic field intensity detects external member |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017198167A1 (en) * | 2016-05-17 | 2017-11-23 | 深圳市智信精密仪器有限公司 | Magnetic field intensity detection set |
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- 2016-05-17 CN CN201620451916.3U patent/CN205643669U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017198167A1 (en) * | 2016-05-17 | 2017-11-23 | 深圳市智信精密仪器有限公司 | Magnetic field intensity detection set |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 518000 floor 1, No.2, Changyi industrial factory, No.1, Lirong Road, Xinshi community, Dalang street, Longhua District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Zhixin Precision Instrument Co.,Ltd. Address before: 518000 3rd floor, Section A, building a, Sunshine Industrial Zone, No.2-3, Hezhou South Industrial Zone, Xixiang, Bao'an District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN INTELLIGENT PRECISION INSTRUMENT Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161012 |