CN205749855U - A kind of device measuring geomagnetism horizontal component - Google Patents
A kind of device measuring geomagnetism horizontal component Download PDFInfo
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- CN205749855U CN205749855U CN201620109491.8U CN201620109491U CN205749855U CN 205749855 U CN205749855 U CN 205749855U CN 201620109491 U CN201620109491 U CN 201620109491U CN 205749855 U CN205749855 U CN 205749855U
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- coil
- horizontal component
- geomagnetism horizontal
- device measuring
- fixing
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Abstract
The utility model discloses a kind of device measuring geomagnetism horizontal component, it is characterized in that, including: coil, suspension arrangement, torsion amplifying device, coil is suspended in the air by suspension arrangement, and reverse under ground magnetic action after powered up, reverse amplifying device and the windup-degree of coil is carried out display amplification, show that the result after amplifying obtains geomagnetism horizontal component by measuring.A kind of device measuring geomagnetism horizontal component of the present utility model has used mechanics, optical principle, has measured the size in magnetic field of the earth accurately, simple to operate, with low cost.
Description
Technical field
This utility model relates to a kind of measurement apparatus, is specifically related to a kind of device measuring geomagnetism horizontal component, and this utility model belongs to
In physical detection instrument field.
Background technology
Current a kind of device measuring geomagnetism horizontal component is few, and Gao Jiandong et al. utilizes the device that spherical and square bias coil does
Measuring geomagnetism horizontal component, but its device makes difficulty, complex, cost is high.
Utility model content
For solving the deficiencies in the prior art, the purpose of this utility model is to provide a kind of device measuring geomagnetism horizontal component, with
Solution prior-art devices makes difficulty, complex, the technical problem that cost is high.
In order to realize above-mentioned target, this utility model adopts the following technical scheme that:
A kind of device measuring geomagnetism horizontal component, it is characterised in that including: coil, suspension arrangement, torsion amplifying device,
Coil is suspended in the air by suspension arrangement, and reverses under ground magnetic action after powered up, reverses amplifying device by the torsion of coil
Angle carries out display and amplifies, and obtains geomagnetism horizontal component by the result after measuring display amplification.
Aforesaid a kind of device measuring geomagnetism horizontal component, it is characterised in that the most last at coil windup-degree and coil
After static, the result after amplifying display measures, and obtains geomagnetism horizontal component.
Aforesaid a kind of device measuring geomagnetism horizontal component, it is characterised in that when coil is not powered on, the normal direction of coil plane
Vertical with geomagnetic horizontal direction.
Aforesaid a kind of device measuring geomagnetism horizontal component, it is characterised in that determined the initial balance position of coil by compass
Put.
Aforesaid a kind of device measuring geomagnetism horizontal component, it is characterised in that described suspension arrangement includes hanging wire, fixing
End, described suspension wire one end connects fixing end, and the other end connects coil.
Aforesaid a kind of device measuring geomagnetism horizontal component, it is characterised in that hang wire include the first suspension wire, second
Hanging wire, fixing end includes fixing top, fixing bottom, and coil includes relative two ends, and first hangs one end of wire even
Connecing fixing top, first other end hanging wire connects one end of coil, and second one end hanging wire connects fixing bottom,
First other end hanging wire connects the other end of coil.
Aforesaid a kind of device measuring geomagnetism horizontal component, it is characterised in that reverse amplifying device by the rotation of measuring coil
Angle has been transformed into the displacement of Laser Measurement luminous point.
Aforesaid a kind of device measuring geomagnetism horizontal component, it is characterised in that described torsion amplifying device include mirror assembly,
Optical screen, optical spot generation device, the luminous point that photoelectricity generator produces is beaten on mirror assembly, and is shown by mirror assembly
On optical screen, mirror assembly is connected with coil, and follows coil torsion and reverse.
Aforesaid a kind of device measuring geomagnetism horizontal component, it is characterised in that described mirror assembly includes the first reflecting mirror,
Described first reflecting mirror is fixing with coil to be connected, and the luminous point that photoelectricity generator produces is shown to by the first reflecting mirror reflective
On optical screen.
Of the present utility model have the beneficial effect that a kind of device measuring geomagnetism horizontal component of the present utility model used mechanics,
Optical principle, has measured the size in magnetic field of the earth accurately, simple to operate, with low cost.
Accompanying drawing explanation
Fig. 1 is a structural representation being preferable to carry out of a kind of device measuring modulus of elasticity in shear of materials of this utility model；
Fig. 2 is the laser path schematic diagram of a kind of device measuring modulus of elasticity in shear of materials of this utility model.
The implication of reference in figure:
1, coil, 2, first hangs wire, and 3, second hangs wire, the 4, first reflecting mirror, and 5, fixing top, 6, solid
Determine bottom, 7, optical screen, 8, optical spot generation device.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, this utility model made concrete introduction.
With reference to shown in Fig. 1, a kind of device measuring geomagnetism horizontal component of this utility model, including: coil 1, suspension arrangement,
Reversing amplifying device, coil 1 is suspended in the air by suspension arrangement, and reverses under ground magnetic action after powered up, reverses and amplifies
The windup-degree of coil 1 is carried out display and amplifies by device, obtains geomagnetism horizontal component by the result after measuring display amplification.
This utility model is not intended to the result of suspension arrangement, is also not intended to reverse the structure of amplifying device, as preferably, real below
Execute example and all give a kind of example, but those skilled in the art can copy following example and prior art to suspension arrangement, torsion
Turn amplifying device to transform.
First principle of the present utility model is introduced.
We fix a coil 1 with two copper wires, it is ensured that the rotational angle of coil 1 is equal to the windup-degree of copper wire, copper
Silk is connected with extraneous power supply.Initial time is vertical with geomagnetic horizontal direction the normal direction of coil plane.Determine at the beginning of coil 1
By means of a compass during beginning equilbrium position.We give coil 1 galvanization, and coil 1 can be applied by geomagnetism horizontal component
Magnetic torque, because having driven the torsion of copper wire when coil 1 rotates, so the reactive torque that coil 1 can be applied by copper wire simultaneously.
Coil 1 is last to be balanced under the effect of two moments, after coil 1 is static, and an angle of deviation initial rest position.More
For body,
During round shaft distorion, if maximum shear stress is less than the proportional limit of material, its torsion angle formula:
Wherein, MxBeing the moment of torsion on copper wire cross section, L is the length of copper wire, and G is the modulus of shearing of material, and Ip is cross section
Pair cross-section centre of form polar moment of inertia, cross section is circular.
If copper wire rotates an angle, θ, then the moment of torsion on the cross section of copper wire bottom is:
Order:
We are by closely coupled with coil 1 upper end for a copper wire, and another root copper wire is closely coupled with coil 1 lower end so that coil
The rotational angle of 1 is equal to the windup-degree of copper wire, and two copper wires are connected with extraneous power supply.
Fixing a reflecting mirror at coil 1 center, we beat at mirror center by beam of laser with certain angle of incidence, luminous point
On screen, luminous point is formed after reflection.
Initial time, the normal direction making coil plane is vertical with geomagnetism horizontal component, and during obstructed electric current, coil 1 system is by gravity
With the pulling force of copper wire, it is in static, now coil location will be referred to as initial rest position.
We give coil 1 galvanization, and coil 1 is by magnetic torque M1The reactive torque M given is rotated with copper wire2, when coil 1
Last static time, the angle between position and initial rest position that now coil 1 is static is θ, and luminous point moves a certain distance, this
Time have M1=M2, i.e.
K θ=NBIS cos θ
Can obtain:
Wherein, L is the total length of two copper wires, and N is the number of turn of coil 1, and I is the electric current that coil 1 is led to, and θ is coil 1
The angle of deviation initial rest position, d is the diameter of copper wire, and B is the size of the horizontal component of earth magnetism.
We derive the computing formula of geomagnetism horizontal component according to the stress balance of coil 1:
Wherein, k is the torque coefficient of material, and N is the number of turn of coil 1, and I is the electric current that coil 1 is led to, and θ is coil 1
The angle of deviation initial rest position, s is the area that coil 1 is surrounded.
In the case of being energized due to coil 1, the angle theta between last equilbrium position and initial rest position is the least, is difficult to measure,
We add the part of a laser amplifier in a device, secure a reflecting mirror in the inside of coil 1, by measuring coil
The angle of the rotation of 1 has been transformed into the displacement of Laser Measurement luminous point.We are turned angle enlargement with laser-bounce path,
The path of laser is summarised in following triangle model, only need to measure the distance that luminous point moves, it is possible to know angle of rotation
Spend.
Fig. 2 is the geometric model in our laser-bounce path, according to the cosine law and sine, derives corner and moves with luminous point
The conversion formula of dynamic distance:
This is i.e. deflection angle computing formula.
Next measure the some amount on the right of geomagnetism horizontal component computing formula and just can measure the size of geomagnetism horizontal component.
This utility model is after coil 1 windup-degree and coil 1 are the most static, and the result after amplifying display is carried out
Measure, obtain geomagnetism horizontal component.After coil 1 is the most static, its angle reversed determines the most completely, the most permissible
Avoid the impact on measurement result of the various interference factor, therefore, the size of the geomagnetism horizontal component that this utility model records accurate
Degree can be the highest.
It should be noted that this utility model is not intended to suspension arrangement, reverses the specific configuration of amplifying device, but as preferred,
Suspension arrangement includes hanging wire, fixing end, hangs wire one end and connects fixing end, and the other end connects coil 1.
Further, this utility model does not limit the quantity hanging wire, material, suspension wire and the binding site of coil 1.But
Being as preferably, hang wire and include that the first suspension wire 2, second hangs wire 3, fixing end includes fixing top 5, fixes
Bottom 6, coil 1 includes that relative two ends, first one end hanging wire 2 connect fixing top 5, and first hangs wire 2
The other end connects one end of coil 1, and second one end hanging wire connects fixing bottom 6, and first hangs the other end of wire 2
Connect the other end of coil 1.
Same, this utility model is not intended to reverse the specific configuration of amplifying device, as preferably, reverses amplifying device and includes instead
Penetrating mirror assembly, optical screen 7, optical spot generation device 8, the luminous point that photoelectricity generator 8 produces is beaten on mirror assembly, and passes through
Mirror assembly shows on optical screen, and mirror assembly is connected with coil 1, and follows coil 1 and reverse and reverse.
Further, this utility model is not intended to the specific configuration of mirror assembly, and as preferably, mirror assembly includes that first is anti-
Penetrating mirror 4, described first reflecting mirror 4 is fixing with coil 1 to be connected, and the luminous point that photoelectricity generator produces is by the first reflecting mirror 4
Reflective display is on optical screen.
The present embodiment has led to different size of electric current to respectively coil 1, the earth magnetism size measured with this device and the ground of existing apparatus
Magnetic horizontal component measurement apparatus is contrasted.
Some values of consult volume of this utility model embodiment device such as table one, it is to be appreciated that these device values of consult volume, art technology
Personnel completely can be according to the actual test that makes alterations, and this utility model is intended only as preferred embodiment and illustrates.According to table one
The experimental data obtained such as following table two:
Table one: the value of consult volume of this utility model embodiment device
Table one: experimental result
It will be seen that this utility model has the most highly precisely measured the size of geomagnetism horizontal component from upper table.
Of the present utility model ultimate principle, principal character and advantage have more than been shown and described.The technical staff of the industry should
Solving, above-described embodiment limits this utility model the most in any form, and the mode of all employing equivalents or equivalent transformation is obtained
Technical scheme, all falls within protection domain of the present utility model.
Claims (9)
1. the device measuring geomagnetism horizontal component, it is characterized in that, including: coil, suspension arrangement, torsion amplifying device, coil is suspended in the air by suspension arrangement, and reverse under ground magnetic action after powered up, reverse amplifying device and the windup-degree of coil is carried out display amplification, show that the result after amplifying obtains geomagnetism horizontal component by measuring.
A kind of device measuring geomagnetism horizontal component the most according to claim 1, it is characterised in that after coil windup-degree and coil are the most static, the result after amplifying display measures, and obtains geomagnetism horizontal component.
A kind of device measuring geomagnetism horizontal component the most according to claim 2, it is characterised in that when coil is not powered on, the normal direction of coil plane is vertical with geomagnetic horizontal direction.
A kind of device measuring geomagnetism horizontal component the most according to claim 3, it is characterised in that determined the initial rest position of coil by compass.
A kind of device measuring geomagnetism horizontal component the most according to claim 4, it is characterised in that described suspension arrangement includes hanging wire, fixing end, and described suspension wire one end connects fixing end, and the other end connects coil.
A kind of device measuring geomagnetism horizontal component the most according to claim 5, it is characterized in that, hang wire and include the first suspension wire, the second suspension wire, fixing end includes fixing top, fixing bottom, coil includes that relative two ends, first one end hanging wire connect fixing top, and first other end hanging wire connects one end of coil, second one end hanging wire connects fixing bottom, and first other end hanging wire connects the other end of coil.
A kind of device measuring geomagnetism horizontal component the most according to claim 6, it is characterised in that reverse amplifying device and the angle of the rotation of measuring coil has been transformed into the displacement of Laser Measurement luminous point.
8. according to a kind of device measuring geomagnetism horizontal component described in any one of claim 1 to 7, it is characterized in that, described torsion amplifying device includes mirror assembly, optical screen, optical spot generation device, the luminous point that photoelectricity generator produces is beaten on mirror assembly, and show on optical screen by mirror assembly, mirror assembly is connected with coil, and follows coil torsion and reverse.
A kind of device measuring geomagnetism horizontal component the most according to claim 8, it is characterized in that, described mirror assembly includes the first reflecting mirror, and described first reflecting mirror is fixing with coil to be connected, and the luminous point that photoelectricity generator produces is shown on optical screen by the first reflecting mirror reflective.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620109491.8U CN205749855U (en) | 2016-02-03 | 2016-02-03 | A kind of device measuring geomagnetism horizontal component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620109491.8U CN205749855U (en) | 2016-02-03 | 2016-02-03 | A kind of device measuring geomagnetism horizontal component |
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| Publication Number | Publication Date |
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| CN205749855U true CN205749855U (en) | 2016-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620109491.8U Expired - Fee Related CN205749855U (en) | 2016-02-03 | 2016-02-03 | A kind of device measuring geomagnetism horizontal component |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105548918A (en) * | 2016-02-03 | 2016-05-04 | 南京信息工程大学 | Device for measuring terrestrial magnetism horizontal component |
-
2016
- 2016-02-03 CN CN201620109491.8U patent/CN205749855U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105548918A (en) * | 2016-02-03 | 2016-05-04 | 南京信息工程大学 | Device for measuring terrestrial magnetism horizontal component |
| CN105548918B (en) * | 2016-02-03 | 2020-01-14 | 南京信息工程大学 | Measure earth magnetism horizontal component's device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20161130 Termination date: 20180203 |