CN202939295U - Portable three-axis magnetic field measuring instrument - Google Patents
Portable three-axis magnetic field measuring instrument Download PDFInfo
- Publication number
- CN202939295U CN202939295U CN 201220604657 CN201220604657U CN202939295U CN 202939295 U CN202939295 U CN 202939295U CN 201220604657 CN201220604657 CN 201220604657 CN 201220604657 U CN201220604657 U CN 201220604657U CN 202939295 U CN202939295 U CN 202939295U
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- Prior art keywords
- magnetic field
- controller
- display
- measuring instrument
- portable
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Abstract
The utility model discloses a portable three-axis magnetic field measuring instrument. The device comprises a housing, a PCB, a power supply, a button switch, a magnetic field sensor, a controller and a display, the housing has a panel, a backboard and an inner cavity, the PCB is located in the inner cavity and fixedly mounted on the inner wall of the housing, the power supply, the button switch, the magnetic field sensor, the controller and the display are integrated on the PCB and exposed from the panel of the housing in a protruding manner, the controller is connected with the magnetic field sensor and the display, the magnetic field sensor can measure magnetic field data of X axis, Y axis, and Z axis directions in space, and transmit to the controller, the controller transmits received magnetic data to the display, and detected magnetic field numerical values of X axis, Y axis, and Z axis directions are displayed through the display. The measuring instrument can measure magnetic field values of X axis, Y axis and Z axis directions in space.
Description
Technical field
The utility model relates to the magnetic-field measurement field, specifically refers to a kind of portable three-axle magnetic field measuring instrument.
Background technology
At present convergence is perfect for magnetic field measurement technology, and the magnetic-field measurement instrument that circulates on market existing hundreds of remaining kinds comprise single shaft, twin shaft and a small amount of three axles.But these instruments generally are used for the laboratory for scientific research personnel or technician, and their using method are complicated, carry inconvenience and expensive.Want the common laborer who is operated in magnetic field environment is played caution and protective effect, not easy.Therefore, they have the limitation of use, and design a low in energy consumption, easy to operate, that volume is little, portative portable three-axle magnetic field measuring instrument just seems is particularly necessary.
The utility model content
The purpose of this utility model is to provide a kind of portable three-axle magnetic field measuring instrument, and this measuring instrument can measurement space X, Y, three of the Z magnetic field value on axially, and easy to operate, volume is little, low in energy consumption, be easy to carry.
above-mentioned purpose of the present utility model realizes by following technical solution: a kind of portable three-axle magnetic field measuring instrument, and it is characterized in that: this measuring instrument comprises housing, pcb board, power supply, pushbutton switch, magnetic field sensor, controller and display, described housing has panel, backboard and inner chamber, described pcb board is positioned at described inner chamber, and pcb board is fixedly mounted on inner walls, described power supply, pushbutton switch, magnetic field sensor, controller and display all are integrated on pcb board, and wherein, controller is positioned at the central region of pcb board, and magnetic field sensor and display are positioned at the fringe region of pcb board, and magnetic field sensor and display lay respectively at the left side of controller, right both sides, described power supply, pushbutton switch, magnetic field sensor, controller and display all protrude the panel that exposes to housing, and controller is connected with display with magnetic field sensor respectively, and described magnetic field sensor can measurement space X, Y, three axial magnetic field datas of Z, and be transferred to described controller, described controller is transferred to display with the magnetic field data that receives, by display with the X that detects, Y, three axial magnetic field numerical value of Z show.
In the utility model, described power supply is accumulator, the direct supply of this accumulator output 5V.
In the utility model, described display is liquid crystal display.
In the utility model, four edges of described pcb board all offer fixed screw holes, and pcb board is screwed and is arranged on inner walls.
In the utility model, be connected by the I2C bus between described controller and magnetic field sensor.
In the utility model, described controller also is connected with a storage chip, and three axial magnetic field datas of X, Y, Z that controller obtains are transferred to described storage chip when display transmits, and carries out the magnetic field data storage.
In the utility model, described measuring instrument also has locator card, and this locator card and described housing are one-body molded, are positioned on the backboard of housing.
In the utility model, described housing is rectangular parallelepiped, and the material of this housing is transparent plastic.
Portable three-axle magnetic field measuring instrument of the present utility model measures for reaching purpose that three axial (X, Y, Z) go up magnetic fields, and magnetic field sensor is made of the low-power consumption magnetic field sensor chip of a special use, it with controller between be connected by the I2C bus.Controller is made of a single-chip microcomputer, the reading, process and show of controlling magnetic field data.Power supply is connected with magnetic field sensor, controller and liquid crystal display by a pushbutton switch, and is easy to operate.Its outward appearance adopts is rectangular parallelepiped clear plastic shell with locator card.That this measuring instrument has is low in energy consumption, easy to operate, volume is little, the advantage such as portable.
Description of drawings
Below in conjunction with the drawings and specific embodiments, the utility model is described in further details.
Fig. 1 is the schematic appearance of the portable three-axle magnetic field measuring instrument of the utility model;
Fig. 2 is the front elevation after the portable three-axle magnetic field measuring instrument of the utility model is removed housing, layout between inner each parts of display measurement instrument;
Fig. 3 is the circuit theory schematic diagram of the magnetic sensors of the portable three-axle magnetic field measuring instrument of the utility model.
Description of reference numerals
1, pcb board; 2, magnetic field sensor; 3, controller; 4, display; 5, power supply; 6, pushbutton switch; 7, fixed screw holes; 8, locator card; 9, housing
Embodiment
a kind of portable three-axle magnetic field measuring instrument as shown in Figure 1 to Figure 3, this measuring instrument comprises housing 9, pcb board 1, power supply 5, pushbutton switch 6, magnetic field sensor 2, controller 3 and display 4, housing 9 is rectangular parallelepiped, the material of this housing 9 is transparent plastic, such as PP, the materials such as PS, housing 9 has panel, backboard and inner chamber, panel namely are provided with the side of operating key, and pcb board 1 is as the base plate of each element in measuring instrument, and pcb board 1 is positioned at inner chamber, and pcb board 1 is fixedly mounted on housing 9 inwalls, power supply 5, pushbutton switch 6, magnetic field sensor 2, controller 3 and display 4 be integrated being welded on pcb board 1 all, and wherein, controller 3 is positioned at the central region of pcb board 1, and magnetic field sensor 2 and display 4 are positioned at the fringe region of pcb board 1, and magnetic field sensor 2 and display 4 lay respectively at the left side of controller 3, right both sides, display 4 is liquid crystal display, power supply 5, pushbutton switch 6, magnetic field sensor 2, controller 3 and display 4 all protrude the panel that exposes to housing 9, and controller 3 is connected with display 4 with magnetic field sensor 2 respectively, and magnetic field sensor 2 can measurement space X, Y, three axial magnetic field datas of Z, and be transferred to controller 3, controller 3 is transferred to display 4 with the magnetic field data that receives, by display 4 with the X that detects, Y, three axial magnetic field numerical value of Z show.Controller 3 is made of a single-chip microcomputer, the reading, process and show of controlling magnetic field data.Power supply 5 is connected with magnetic field sensor 2, controller 3 and liquid crystal display by pushbutton switch 6, and that this SCM Based portable three-axle magnetic field measuring instrument has is low in energy consumption, easy to operate, volume is little, the advantage such as portable.
In the present embodiment, power supply 5 is accumulator, the direct supply of this accumulator output 5V; Four edges of pcb board 1 all offer fixed screw holes 7, and pcb board 1 is screwed and is arranged on housing 9 inwalls; Magnetic field sensor 2 is made of low-watt consumption magnetic field sensor 2 chips of a special use, is connected by the I2C bus between controller 3 and magnetic field sensor 2.
In order in time the magnetic field data that detects to be stored, in the present embodiment, controller 3 also is connected with a storage chip, and three axial magnetic field datas of X, Y, Z that controller 3 obtains are transferred to storage chip when display 4 transmits, carry out the magnetic field data storage.
Can directly hang over certain fixed-site when using for the ease of measuring instrument, measuring instrument also has locator card 8, and this locator card 8 is one-body molded with housing 9, is positioned on the backboard of housing 9.
In the utility model, power supply 5 is through proving and analyze the final battery feed that this magnetic-field measurement instrument system requires power supply high precision, low cost, low-ripple coefficient etc. of selecting to satisfy, and what its was exported is the direct supply of a 5V.Because whole measuring system only has a power supply 5, so power supply needs respectively to magnetic field sensor 2, controller 3 and LCD device electric supply.Power supply 5 comes the break-make of control circuit by pushbutton switch 6, thereby realizes the startup of system and close, and uses very easy.
What magnetic field sensor 2 used is the low-watt consumption magnetic field measurement chip of a special use, and it is made of a magnetic field sensing chip (MAG3110) and relevant peripheral circuit.This magnetic field sensing chip is the chip of a high precision, low-power consumption, and peak power only has 86.4uJ and resolution to reach 0.1uT under normal mode.As shown in Figure 3, this chip has ten pins, only need to use wherein four just can achieve the goal, wherein SDA, SDL are the message transmissions ports of I2C bus, be connected with the I/O mouth of single-chip microcomputer, by controlling the voltage levvl of these two ports, can control transmission and the acceptance of message, and then the data that magnetic field sensor 2 measures are sent to controller 3.Two other pin is realized the energy supply function, is respectively the voltage source of GND and 5V.This chip functions is complete, and an AD modular converter is contained in its inside, and it is the data of three axial (X, Y, Z) measuring, by a multiplexer, send respectively the A/D modular converter to, be converted to after digital signal again by digital signal processing, send at last controller 3.In addition, it is little that this chip has encapsulation, the advantages such as strong adaptability, and the scope that magnetic field can be detected has reached ± 1000uT, can be widely used in daily life.
Liquid crystal display is used for showing in real time the magnetic field value on three axial (X, Y, Z), is realized by the duplicate rows character mode lcd (LCD1602) of a low-power consumption.It has the advantages such as low price, volume be little, lightweight.
Each device needs collaborative work jointly to realize the basic function of this measuring instrument.Because the quantity of device adds that less power consumption is low, the characteristic of this low-power consumption can satisfy long work requirements fully.Whole measuring instrument only has a shift knob to control it to start and cut out, adding the numerical value of display measurement automatically, operate very simple, convenient most people use.
Above-described embodiment of the present utility model is not the restriction to the utility model protection domain; embodiment of the present utility model is not limited to this; according to foregoing of the present utility model; ordinary skill knowledge and customary means according to this area; do not breaking away under the above-mentioned basic fundamental thought of the utility model prerequisite; modification, replacement or the change of other various ways that said structure of the present utility model is made are within all dropping on protection domain of the present utility model.
Claims (8)
1. portable three-axle magnetic field measuring instrument, it is characterized in that: this measuring instrument comprises housing, pcb board, power supply, pushbutton switch, magnetic field sensor, controller and display, described housing has panel, backboard and inner chamber, described pcb board is positioned at described inner chamber, and pcb board is fixedly mounted on inner walls, described power supply, pushbutton switch, magnetic field sensor, controller and display all are integrated on pcb board, and wherein, controller is positioned at the central region of pcb board, and magnetic field sensor and display are positioned at the fringe region of pcb board, and magnetic field sensor and display lay respectively at the left side of controller, right both sides, described power supply, pushbutton switch, magnetic field sensor, controller and display all protrude the panel that exposes to housing, and controller is connected with display with magnetic field sensor respectively, and described magnetic field sensor can measurement space X, Y, three axial magnetic field datas of Z, and be transferred to described controller, described controller is transferred to display with the magnetic field data that receives, by display with the X that detects, Y, three axial magnetic field numerical value of Z show.
2. portable three-axle magnetic field measuring instrument as claimed in claim 1, it is characterized in that: described power supply is accumulator, the direct supply of this accumulator output 5V.
3. portable three-axle magnetic field measuring instrument as claimed in claim 1, it is characterized in that: described display is liquid crystal display.
4. portable three-axle magnetic field measuring instrument as claimed in claim 1, it is characterized in that: four edges of described pcb board all offer fixed screw holes, and pcb board is screwed and is arranged on inner walls.
5. portable three-axle magnetic field measuring instrument as claimed in claim 1 is characterized in that: be connected by the I2C bus between described controller and magnetic field sensor.
6. portable three-axle magnetic field measuring instrument as claimed in claim 1, it is characterized in that: described controller also is connected with a storage chip, three axial magnetic field datas of X, Y, Z that controller obtains are transferred to described storage chip when display transmits, carry out the magnetic field data storage.
7. portable three-axle magnetic field measuring instrument as claimed in claim 1, it is characterized in that: described measuring instrument also has locator card, and this locator card and described housing are one-body molded, are positioned on the backboard of housing.
8. portable three-axle magnetic field measuring instrument as claimed in claim 1, it is characterized in that: described housing is rectangular parallelepiped, the material of this housing is transparent plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220604657 CN202939295U (en) | 2012-11-15 | 2012-11-15 | Portable three-axis magnetic field measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220604657 CN202939295U (en) | 2012-11-15 | 2012-11-15 | Portable three-axis magnetic field measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202939295U true CN202939295U (en) | 2013-05-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220604657 Expired - Lifetime CN202939295U (en) | 2012-11-15 | 2012-11-15 | Portable three-axis magnetic field measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202939295U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105607015A (en) * | 2016-01-19 | 2016-05-25 | 三峡大学 | Three-dimensional space magnetic-field measurement system |
-
2012
- 2012-11-15 CN CN 201220604657 patent/CN202939295U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105607015A (en) * | 2016-01-19 | 2016-05-25 | 三峡大学 | Three-dimensional space magnetic-field measurement system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHANGSHA UNIVERSITY OF SCIENCES+TECHNOLOGY Effective date: 20130927 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130927 Address after: 510080 Dongfeng East Road, Guangdong, Guangzhou, water, Kong Kong, No. 8 Patentee after: ELECTRIC POWER RESEARCH INSTITUTE OF GUANGDONG POWER GRID Corp. Patentee after: CHANGSHA University OF SCIENCE AND TECHNOLOGY Address before: 510080 Dongfeng East Road, Guangdong, Guangzhou, water, Kong Kong, No. 8 Patentee before: ELECTRIC POWER RESEARCH INSTITUTE OF GUANGDONG POWER GRID Corp. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130515 |
|
| CX01 | Expiry of patent term |