CN2781393Y - Fluxgate sensor - Google Patents
Fluxgate sensor Download PDFInfo
- Publication number
- CN2781393Y CN2781393Y CN 200420110013 CN200420110013U CN2781393Y CN 2781393 Y CN2781393 Y CN 2781393Y CN 200420110013 CN200420110013 CN 200420110013 CN 200420110013 U CN200420110013 U CN 200420110013U CN 2781393 Y CN2781393 Y CN 2781393Y
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- China
- Prior art keywords
- circuit board
- probe
- sensor
- hexahedron
- welding
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a fluxgate sensor, which is provided with three mutually and orthogonally arranged probes, and both ends of each probe are respectively provided with a circuit board. The end parts of the probes are inserted in an opening of the circuit board and welded, and the edges of all the six circuit boards are near a welding disc. The six circuit boards can form a sealed hexahedron via the welding of the contiguous welding discs, the probes are arranged in the hexahedron, and input-output leading legs of a sensor are led on the outer surface of the hexahedron via plated through holes. The utility model is provided without additional probe outlet lines, probe mounting frames, power supplies, signal input-output sockets, fasteners, shells, etc. The electric and mechanical connection at each part of the sensor has simple technique, high reliability and compact structure, the entire magnetic sensor can be directly welded on a user circuit board with convenient operation.
Description
Technical field
The utility model relates to a kind of fluxgate sensor that is used to measure low-intensity magnetic field.
Background technology
In by measuring magnetic field, magnetic core is under the saturation activation of alternating magnetic field, and " asymmetry " will take place the voltage in the inductive coil changes, and fluxgate sensor utilizes this mechanism that the component of low-intensity magnetic field vector is measured just.Fluxgate sensor is used to measure terrestrial magnetic field, space magnetic field, underground pipeline and ferromagnetic object detection, geologic prospecting, line of electric force detection, vehicle control etc., at present, fluxgate sensor generally includes probe, probe erecting frame, sensor circuit board, power supply and the signal input and output socket of three mutually orthogonal placements, a plurality of securing member, shell etc., and volume is big, complex structure, install in mancarried device and use inconvenient.On the other hand, the printed circuit board manufacture craft has reached higher level, and the utility model adopts printed circuit board process to carry out improved to the fluxgate sensor structure just.
The utility model content
The purpose of this utility model provides that a kind of volume is little, installation and fluxgate sensor easy to use.
The utility model is that the technical scheme that the technical solution problem is taked is: make zonule---the end face weld groove (1) that can go up scolding tin at probe skeleton end face, in probe inductive coil and drive coil the end of a thread four end weld grooves (1) that totally four are welded on the probe two ends respectively, make a circuit board opening (4) on the every circuit board, its edge makes four opening weld grooves (2).Mutually orthogonal a probe is respectively arranged on axially at three, respectively there is a circuit board at each probe two ends, circuit board plate face perpendicular to probe vertically, probe end is inserted in the circuit board opening, all six circuit boards are formed the hexahedron of sealing by the adjacent connection pads of welding (3), probe is positioned at hexahedron, the sensor input and output pin is guided on the hexahedron outside surface by plated through-hole, connection pads (3) is positioned at circuit board near the inside surface edge of hexahedron inside, near the position of the connection pads (3) the adjacent circuit plate adjacent inner surface edge is corresponding one by one, connection pads (3) has plated through-hole, has annular tin paste layer at the plated through-hole edge.The aperture of connection pads on the hexahedron top circuit board (3) is bigger, go deep in the hole adjacent connection pads (3) being welded from the outside with convenient, at last, with each probe end weld groove (1) and adjacent apertures weld groove (2) welding, finish the structure assembling of whole fluxgate sensor.
Useful effect of the present utility model is, additional probes extension line, probe erecting frame, power supply and signal input and output socket, securing member, shell have been removed, sensor everywhere electricity and mechanical connection technology is simple, reliability is high, compact conformation, whole Magnetic Sensor can directly be welded on the user circuit board, and is easy to use.
Below in conjunction with drawings and Examples the utility model is described further.
Description of drawings
Fig. 1 is fluxgate sensor structure and assembling synoptic diagram.
1. end weld grooves, 2. opening weld groove, 3. connection pads among the figure, 4. circuit board opening, 5.X axle probe, 6.Y axle probe, 7.Z axle probe, 8.X axle forward circuit plate, 9.X axle negative sense circuit board, 10.Y axle forward circuit plate, 11.Y axle negative sense circuit board, 12.Z axle forward circuit plate, 13.Z axle negative sense circuit board, 14. pin pads.
Embodiment
See Fig. 1, make the zonule that to go up scolding tin at probe skeleton end face, this zonule can be the coat of metal, bonding weld tabs, be weld groove in the present embodiment, in probe inductive coil and drive coil the end of a thread four end weld grooves (1) that totally four are welded on the probe two ends respectively, X, Y, Z axle probe length are 22.5mm.On every circuit board, make a circuit board opening (4), its size can be inserted with probe end and be as the criterion, make four opening weld grooves (2) at circuit board opening (4) edge, this weld groove is the part of plated through-hole inwall, the position of opening weld groove (2) is corresponding with the position of end weld groove (1), circuit board thickness is 1.6mm, for forming the sealing hexahedron, the size of each circuit board is different, X-axis forward circuit plate (8) and X-axis negative sense circuit board (9) are of a size of 23mm * 21.3mm, Y-axis forward circuit plate (10) and Y-axis negative sense circuit board (11) are 19.7mm * 21.3mm, Z axle forward circuit plate (12) is 23mm * 23mm, Z axle negative sense circuit board (13) is 19.7mm * 19.7mm, the final hexahedron of forming is of a size of 23mm * 23mm * 23mm, and the connection between six circuit boards is to realize by the soldering to adjacent connection pads (3).The quantity of the connection pads on each circuit board (3) should be many as far as possible, and should suitably increase soldering tin amount when welding adjacent connection pads (3) makes the circuit board connection more reliable, when determining the position of connection pads (3), should consider the electronic component deployment scenarios of adjacent circuit plate, should be too near electronic component on circuit board opening and the plate, the position of the adjacent connection pads (3) of adjacent circuit plate should be suitable, at a distance of about 1mm, to make things convenient for scolding tin to connect or weldering maintenance down.The assembling of circuit board and probe and welding should be carried out in the template of 23mm * 23mm * 21mm, at first, and the circuit board of packing into (8) (9) (10) (11) and (13), the adjacent connection pads (3) of soldered circuit board (8) (11) and (13); Take out circuit board (9), assembling X-axis probe (5) inserts circuit board (9) again, the adjacent connection pads (3) of soldered circuit board (9) and circuit board (11) and (13); Take out circuit board (10), assembling Y-axis probe (6) inserts circuit board (10) again, the adjacent connection pads (3) of soldered circuit board (10) and circuit board (9) (8) and (13); Assembling Z axle probe (7), cover circuit board (12), the aperture of the connection pads (3) on the circuit board (12) is 4mm, the aperture of the connection pads on other circuit board (3) is 1mm, go deep into thin solder horn in the hole of the connection pads (3) on the circuit board (12), with adjacent connection pads (3) welding of circuit board (12) with circuit board (8) (9) (10) (11); At last, the sensor hexahedron is taken out from template,, promptly finished the assembling of whole fluxgate sensor 12 the end weld grooves (1) and the welding of the adjacent apertures weld groove (2) on each circuit board opening (4) edge of probe.End weld groove (1) and the welding realization probe of opening weld groove (2) and the electricity and the mechanical connection of circuit board, the welding of adjacent connection pads (3) has realized electricity and the mechanical connection between the circuit board.The position of the circuit board opening (4) on a pair of circuit board on each is axial should make three mutually orthogonal and don't generation machineries " interference " of probe.Electronic component is welded on the circuit board and in hexahedron.Connection pads (3) and pin pad (14) all have plated through-hole and tin paste layer ring, pin pad (14) has six, be respectively Magnetic Sensor three output signal, ground wire and the power supply input on axially, pin pad (14) is positioned at sensor base, be convenient to the welding of sensor on user circuit board, simultaneously, it is the through hole (not drawing among the figure) of 2.1mm that diameter is arranged on Z axle forward circuit plate (12) and the Z axle negative sense circuit board (13), via these two through holes, run through whole sensor with screw, sensor can be fixed on the user circuit board.
Claims (3)
1, a kind of fluxgate sensor, the probe, the sensor circuit board that comprise three mutually orthogonal placements, it is characterized in that: respectively there is a circuit board at each probe two ends, this circuit board plate face perpendicular to probe vertically, probe end is inserted welding in the circuit board opening, near all six circuit board edges pad is arranged, and these six circuit boards are by the hexahedron that is welded to form sealing of adjacent pad, probe is positioned at hexahedron, and the sensor input and output pin is guided on the hexahedron outside surface by plated through-hole.
2, fluxgate magnetic core according to claim 1 is characterized in that: probe end and edge, circuit board open area have made the zonule that can go up scolding tin.
3, fluxgate magnetic core according to claim 1 is characterized in that: the pad that is used for the connecting circuit plate has tin paste layer around plated through-hole and the hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420110013 CN2781393Y (en) | 2004-11-18 | 2004-11-18 | Fluxgate sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420110013 CN2781393Y (en) | 2004-11-18 | 2004-11-18 | Fluxgate sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2781393Y true CN2781393Y (en) | 2006-05-17 |
Family
ID=36762595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420110013 Expired - Fee Related CN2781393Y (en) | 2004-11-18 | 2004-11-18 | Fluxgate sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2781393Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101308197B (en) * | 2008-04-02 | 2010-09-15 | 武汉大学 | Magnetic flux door sensor probe |
| CN101990627B (en) * | 2008-04-29 | 2012-07-04 | Zf腓德烈斯哈芬股份公司 | Inductive sensor for speed, rotational direction and position measurements in the high temperature range |
| CN105705960A (en) * | 2013-11-06 | 2016-06-22 | 罗伯特·博世有限公司 | Magnetic sensor device and method for producing a magnetic sensor device |
| CN106767771A (en) * | 2016-12-02 | 2017-05-31 | 华中科技大学 | A kind of sensor device and magnetic ground drawing generating method for indoor navigation |
| CN106771475A (en) * | 2016-11-21 | 2017-05-31 | 云南电网有限责任公司电力科学研究院 | A kind of sensor for detecting DC control protected host board faults electric current |
| CN108519563A (en) * | 2018-04-02 | 2018-09-11 | 南京麦科尼传感技术有限公司 | A kind of high-resolution orthogonal fluxgate three axis magnetometer and its manufacturing technology based on amorphous wire |
| CN109799467A (en) * | 2019-01-31 | 2019-05-24 | 北京大学 | Space magnetic field measuring device, measuring system and measurement method without boom |
| CN110986745A (en) * | 2019-12-25 | 2020-04-10 | 北京海创高科科技有限公司 | Reinforced concrete detection device based on electromagnetic induction |
| CN112526414A (en) * | 2020-11-12 | 2021-03-19 | 清华大学 | Low-noise orthogonal fundamental mode fluxgate sensor probe with asymmetrically arranged magnetic cores |
-
2004
- 2004-11-18 CN CN 200420110013 patent/CN2781393Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101308197B (en) * | 2008-04-02 | 2010-09-15 | 武汉大学 | Magnetic flux door sensor probe |
| CN101990627B (en) * | 2008-04-29 | 2012-07-04 | Zf腓德烈斯哈芬股份公司 | Inductive sensor for speed, rotational direction and position measurements in the high temperature range |
| CN105705960B (en) * | 2013-11-06 | 2019-11-19 | 罗伯特·博世有限公司 | Magnet sensor arrangement and manufacturing method for magnet sensor arrangement |
| CN105705960A (en) * | 2013-11-06 | 2016-06-22 | 罗伯特·博世有限公司 | Magnetic sensor device and method for producing a magnetic sensor device |
| CN106771475A (en) * | 2016-11-21 | 2017-05-31 | 云南电网有限责任公司电力科学研究院 | A kind of sensor for detecting DC control protected host board faults electric current |
| CN106767771A (en) * | 2016-12-02 | 2017-05-31 | 华中科技大学 | A kind of sensor device and magnetic ground drawing generating method for indoor navigation |
| CN106767771B (en) * | 2016-12-02 | 2019-10-01 | 华中科技大学 | A kind of magnetic of the sensor device for indoor navigation ground drawing generating method |
| WO2018098851A1 (en) * | 2016-12-02 | 2018-06-07 | 广东思谷智能技术有限公司 | Sensor device for indoor navigation and magnetic map generating method |
| CN108519563A (en) * | 2018-04-02 | 2018-09-11 | 南京麦科尼传感技术有限公司 | A kind of high-resolution orthogonal fluxgate three axis magnetometer and its manufacturing technology based on amorphous wire |
| CN109799467A (en) * | 2019-01-31 | 2019-05-24 | 北京大学 | Space magnetic field measuring device, measuring system and measurement method without boom |
| CN110986745A (en) * | 2019-12-25 | 2020-04-10 | 北京海创高科科技有限公司 | Reinforced concrete detection device based on electromagnetic induction |
| CN110986745B (en) * | 2019-12-25 | 2021-02-09 | 北京海创高科科技有限公司 | Reinforced concrete detection device based on electromagnetic induction |
| CN112526414A (en) * | 2020-11-12 | 2021-03-19 | 清华大学 | Low-noise orthogonal fundamental mode fluxgate sensor probe with asymmetrically arranged magnetic cores |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |