CN105549102B - Geomagnetism horizontal component dynamic monitoring device - Google Patents
Geomagnetism horizontal component dynamic monitoring device Download PDFInfo
- Publication number
- CN105549102B CN105549102B CN201610077509.5A CN201610077509A CN105549102B CN 105549102 B CN105549102 B CN 105549102B CN 201610077509 A CN201610077509 A CN 201610077509A CN 105549102 B CN105549102 B CN 105549102B
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- Prior art keywords
- coil
- horizontal component
- monitoring device
- conducting wire
- suspension
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/40—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for measuring magnetic field characteristics of the earth
Abstract
The invention discloses a kind of geomagnetism horizontal component dynamic monitoring devices, which is characterized in that including：Coil, suspension arrangement, torsion amplifying device, monitoring device, coil is hung in the air by suspension arrangement, and it is reversed under ground magnetic action after powered up, the windup-degree of coil is carried out display amplification by torsion amplifying device, monitoring device monitoring torsion amplifying device is shown as a result, obtaining dynamic geomagnetism horizontal component after handling.The geomagnetism horizontal component dynamic monitoring device of the present invention has used the technology of mechanics, optics and computer disposal picture, at every moment can accurately reflect the size of geomagnetism horizontal component, ground-to-ground the size of magnetic horizontal component dynamically monitor for success.
Description
Technical field
The present invention relates to a kind of monitoring devices, and in particular to a kind of geomagnetism horizontal component dynamic monitoring device, the invention belongs to
In physical detection instrument field.
Background technology
Since geomagnetism horizontal component is smaller, common Tesla meter is difficult to detect, some current measure geomagnetic horizontal point
The device of amount, which can only all rest on, measures size aspect, and installation cost is all higher, in the market without the dynamic monitoring earth
The device of magnetic field levels component.
Invention content
To solve the deficiencies in the prior art, the purpose of the present invention is to provide a kind of geomagnetism horizontal component dynamic monitoring dresses
It puts, to solve the technical issues of prior art can only measure the size of geomagnetism horizontal component, installation cost is higher.
In order to realize above-mentioned target, the present invention adopts the following technical scheme that：
Geomagnetism horizontal component dynamic monitoring device, which is characterized in that including：Coil, suspension arrangement, torsion amplifying device,
Monitoring device, coil is hung in the air by suspension arrangement, and is reversed under ground magnetic action after powered up, and torsion amplifying device will
The windup-degree of coil carries out display amplification, and monitoring device monitoring torsion amplifying device is shown as a result, being obtained after handling dynamic
Geomagnetism horizontal component.
Aforementioned geomagnetism horizontal component dynamic monitoring device, which is characterized in that when coil is not powered on, the method for coil plane
To vertical with geomagnetic horizontal direction.
Aforementioned geomagnetism horizontal component dynamic monitoring device, which is characterized in that the initial flat of coil is determined by compass
Weighing apparatus position.
Aforementioned geomagnetism horizontal component dynamic monitoring device, which is characterized in that the suspension arrangement includes suspension conducting wire, consolidates
Fixed end, suspension conducting wire one end connection fixing end, other end connection coil.
Aforementioned geomagnetism horizontal component dynamic monitoring device, which is characterized in that suspension conducting wire includes the first suspension conducting wire, the
Two suspension conducting wires, fixing end include fixed top, fixed bottom end, and coil includes opposite both ends, one end of the first suspension conducting wire
The fixed top of connection, one end of the other end connection coil of the first suspension conducting wire, the fixed bottom of one end connection of the second suspension conducting wire
End, the other end of the other end connection coil of the first suspension conducting wire.
Aforementioned geomagnetism horizontal component dynamic monitoring device, which is characterized in that the torsion amplifying device includes speculum
Component, optical screen, optical spot generation device, the luminous point that photoelectricity generation device generates are beaten on mirror assembly, and pass through speculum group
Part is shown on optical screen, and mirror assembly is connected with coil, and is followed coil torsion and reversed.
Aforementioned geomagnetism horizontal component dynamic monitoring device, which is characterized in that the mirror assembly includes the first reflection
Mirror, the second speculum, first speculum are fixedly connected with coil, and the luminous point that photoelectricity generation device generates passes through the first reflection
Mirror is reflected on the second speculum, then is shown on optical screen by the reflection of the second speculum.
Aforementioned geomagnetism horizontal component dynamic monitoring device, which is characterized in that the monitoring device includes video camera, calculates
Photo is transferred to computer system after video camera shooting luminous point photo, by calculating by machine system, video camera connection computer system
Dynamic geomagnetism horizontal component is obtained after the processing of machine system.
The invention has the beneficial effects that：The geomagnetism horizontal component dynamic monitoring device of the present invention has used mechanics, optics
And the technology of computer disposal picture, it at every moment can accurately reflect the size of geomagnetism horizontal component, it is successfully right
The size of geomagnetism horizontal component has carried out dynamic and has monitored.
Description of the drawings
Fig. 1 is the structure diagram of a preferred implementation of geomagnetism horizontal component dynamic monitoring device of the present invention；
Fig. 2 is the geometrical model of geomagnetism horizontal component dynamic monitoring device reflection path of the present invention；
Fig. 3 is the technology of geomagnetism horizontal component dynamic monitoring device matlab processing picture of the present invention, calculates every
Spot displacement and the curve spot displacement of time and the curve of time are drawn out in the position of luminous point in picture.
The meaning of reference numeral in figure：
1st, coil, the 2, first suspension conducting wire, the 3, second suspension conducting wire, 4, fixed top, 5, fixed bottom end, the 6, first reflection
Mirror, the 7, second speculum, 8, optical screen, 9, optical spot generation device, 10, video camera, 11, outer container.
Specific embodiment
Make specific introduce to the present invention below in conjunction with the drawings and specific embodiments.
With reference to shown in Fig. 1, geomagnetism horizontal component dynamic monitoring device of the present invention, including：Coil 1, suspension arrangement, torsion are put
Big device, monitoring device, coil 1 is hung in the air by suspension arrangement, and is reversed under ground magnetic action after powered up, and torsion is put
The windup-degree of coil 1 is carried out display amplification by big device, and monitoring device monitoring torsion amplifying device is shown as a result, being obtained after handling
To dynamic geomagnetism horizontal component.Coil 1, suspension arrangement, torsion amplifying device, monitoring device can be arranged on outer container 11
Interior, outer container can reduce extraneous factor to coil 1, suspension arrangement, the interference for reversing amplifying device, monitoring device.So that monitoring
It is more accurate.These extraneous factors can be air agitation, external force vibration etc..
The application principle of the present invention is described below.
(1) round shaft distorion
We are by taking a copper wire as an example, when round shaft distorion occurs in it, if maximum shear stress is no more than the ratio pole of material
Limit reverses angle formula：
Wherein, MxIt is the torque on copper wire cross section, L is the length of copper wire, and G is the modulus of shearing of copper wire, IpIt is cross section
Pair cross-section centre of form polar moment of inertia, cross section are round.
If copper wire one angle, θ of rotation, the torque on the cross section of copper wire bottom is:
Define torque coefficient
M=k θ.
(2) geomagnetism horizontal component calculation formula
We fix a coil 1 with two copper wires, ensure that the rotational angle of coil 1 is equal to the torsion angle of copper wire
Degree, copper wire are connected with extraneous power supply.Initial time is vertical with geomagnetic horizontal direction the normal direction of 1 plane of coil.Initial
At the moment, the normal direction for making coil plane is vertical with geomagnetism horizontal component, and during obstructed electric current, 1 system of coil is by gravity and copper wire
Pulling force in static, will be known as initial rest position by the location of coil 1 at this time.When determining the initial rest position of coil 1
By means of a compass.We give 1 galvanization of coil, and coil 1 can be by the application magnetic torque of geomagnetism horizontal component, because of line
The torsion of copper wire is driven during 1 rotation of circle, so the reactive torque that coil 1 can be applied simultaneously by copper wire.Coil 1 is finally two
It is balanced under the action of a torque, after coil 1 is static, deviates an angle of initial rest position.We are according to the stress of coil 1
Balance derives the calculation formula of geomagnetism horizontal component：
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 leads to, and θ is that coil 1 deviates
The angle of initial rest position, s are the areas that coil 1 is surrounded.
(3) measurement of θ
Amplifier section：
Since coil 1 is when last static, the angle for deviateing initial rest position is smaller, is not easy to measure, we are in device
In add the part of a laser amplifier, a speculum is secured in the inside of coil 1, by the rotation of measuring coil 1
Angle has been transformed into the displacement distance for measuring laser spot.Fig. 2 is the geometrical model in our laser reflection paths.Determined according to cosine
Reason and sine derive the conversion formula of corner and luminous point displacement distance：
Monitor portion：
Coil 1 is converted to the movement of luminous point by us, as long as the distance for measuring the movement of coil 1 can
To extrapolate the angle of the rotation of coil 1, electric current obstructed first allows coil 1 to be freely rotated, is then electrified to flow, coil 1 is allowed to rotate,
We to the movement of luminous point take pictures every 0.02s with camera, and the technology of picture is handled with matlab, calculate every
The position of luminous point in picture, draws out spot displacement and the curve of time, such as Fig. 3：
During obstructed electric current, spot displacement is approximately simple harmonic motion, is moved left and right in equilbrium position, after galvanization, luminous point
Displacement
Also approximately at simple harmonic motion is moved left and right a new equilbrium position, and the horizontal line in figure is two of coil 1 flat
Weighing apparatus position.We calculate the pixel difference of two equilbrium positions of coil 1, and pixel difference then is changed into two balances in practice
The distance of position, then distance and the calculation formula of corner are substituted into, obtain corner size.
Dynamic transition：
It when initial, does not give coil 1 galvanization, makes its rotation, camera shooting luminous point, matlab calculates the initial flat of it
Weighing apparatus position, then galvanization, calculates new equilbrium position, and video camera 10 takes a picture per 0.02s, matlab processing figures
Piece calculates an equilbrium position point, obtains the angle that original equilbrium position is deviateed in primary new equilbrium position, and corner has it
Afterwards, it is updated in the calculation formula of geomagnetism horizontal component, obtains the numerical values recited of geomagnetism horizontal component, whole process is no more than
1s.In this way, whole device just can in 1s within measure the size of geomagnetism horizontal component, if earth magnetism suddenly change, line
Enclosing 1 new equilbrium position will change, and corner will be there are one new value, and the size of geomagnetism horizontal component can similarly calculate
Out.
Specific implementation one embodiment of the present of invention is given below.
It should be noted that the present invention does not limit the specific configuration of suspension arrangement, torsion amplifying device, monitoring device, but
It is preferably, suspension arrangement includes suspension conducting wire, fixing end, suspension conducting wire one end connection fixing end, other end connection coil
1.Further, the present invention does not limit the quantity of suspension conducting wire, the binding site of material, suspension conducting wire and coil 1.But it is used as excellent
Choosing, suspension conducting wire include the first suspension conducting wire 2, second and hang conducting wire 3, and fixing end includes fixed top 4, fixed bottom end 5, coil
1 includes opposite both ends, the fixed top 4 of one end connection of the first suspension conducting wire 2, the other end connecting line of the first suspension conducting wire 2
One end of circle 1, the fixed bottom end 5 of one end connection of the second suspension conducting wire 3, first hangs the another of the other end connection coil 1 of conducting wire 2
One end.Likewise, the present invention does not limit the specific configuration of torsion amplifying device, preferably, torsion amplifying device includes reflection
Mirror assembly, optical screen 8, optical spot generation device 9, the luminous point that photoelectricity generation device generates are beaten on mirror assembly, and pass through reflection
Mirror assembly is shown on optical screen 8, and mirror assembly is connected with coil 1, and coil 1 is followed to reverse and reverse.Further, it is of the invention
The specific configuration of mirror assembly is not limited, preferably, mirror assembly includes the first speculum 6, the second speculum 7, institute
It states the first speculum 6 to be fixedly connected with coil 1, the luminous point that photoelectricity generation device generates is reflected into second by the first speculum 6
On speculum 7, then reflected and be shown on optical screen 8 by the second speculum 7.Likewise, not limit monitoring device specific by the present invention
Construction, preferably, monitoring device includes video camera 10, computer system, video camera 10 connects computer system, video camera 10
Photo is transferred to computer system after shooting luminous point photo, by obtaining dynamic geomagnetic horizontal point after computer system processor
Amount.
As shown in Figure 1.The numerical value such as following table one of each parameter, laser amplifier each section in the preferred embodiment setting device
Numerical value such as following table two：
Table one：The numerical value of each parameter in device
Table two：Laser amplifier each section numerical value
In the preferred embodiment, lasing light emitter is taken the photograph without particular/special requirement, coil 1 without particular/special requirement, speculum without particular/special requirement
As head portrait element is preferably more than 5,000,000 pixels.
We fix a coil 1 with two copper wires, ensure that the rotational angle of coil 1 is equal to the torsion angle of copper wire
Degree, copper wire are connected with extraneous power supply.Initial time is vertical with geomagnetic horizontal direction the normal direction of 1 plane of coil.Determine line
By means of a compass during initial rest position of circle 1.We give 1 galvanization of coil, and coil 1 can be by geomagnetism horizontal component
Application magnetic torque because coil 1 has driven the torsion of copper wire when rotating, coil 1 can be applied anti-by copper wire simultaneously
To torque.Coil finally balances under the action of two torque, after coil stationary, deviates an angle of initial rest position.
We derive the calculation formula of geomagnetism horizontal component according to the stress balance of coil：
Wherein, k is the torque coefficient of material, and N is the number of turn of coil, and I is the electric current that coil leads to, and θ is that coil deviates just
The angle of beginning equilbrium position, s are the areas that coil is surrounded.The numerical stability of earth magnetism dynamic monitoring measured is 3.01 × 10- 5T。
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the invention is not limited in any way above-described embodiment, all to be obtained by the way of equivalent substitution or equivalent transformation
Technical solution is all fallen in protection scope of the present invention.
Claims (5)
1. geomagnetism horizontal component dynamic monitoring device, which is characterized in that including：Coil, suspension arrangement, torsion amplifying device, prison
Device is controlled, coil is hung in the air by suspension arrangement, and is reversed under ground magnetic action after powered up, reverses amplifying device by line
The windup-degree of circle carries out display amplification, and monitoring device monitoring torsion amplifying device is shown as a result, being obtained dynamically after handling
Magnetic horizontal component；
The torsion amplifying device includes mirror assembly, optical screen, photoelectricity generation device, and the luminous point that photoelectricity generation device generates is beaten
On mirror assembly, and pass through mirror assembly and be shown on optical screen, mirror assembly is connected with coil, and coil is followed to turn round
Then torsion；
The mirror assembly includes the first speculum, the second speculum, and first speculum is fixedly connected with coil, photoelectricity
The luminous point that generation device generates is reflected by the first speculum on the second speculum, then is shown to by the reflection of the second speculum
On optical screen；
The suspension arrangement includes suspension conducting wire, fixing end, suspension conducting wire one end connection fixing end, other end connecting line
Circle.
2. geomagnetism horizontal component dynamic monitoring device according to claim 1, which is characterized in that when coil is not powered on,
The normal direction of coil plane is vertical with geomagnetic horizontal direction.
3. geomagnetism horizontal component dynamic monitoring device according to claim 2, which is characterized in that line is determined by compass
The initial rest position of circle.
4. geomagnetism horizontal component dynamic monitoring device according to claim 1, which is characterized in that suspension conducting wire includes first
Conducting wire, the second suspension conducting wire are hung, fixing end includes fixed top, fixed bottom end, and coil includes opposite both ends, the first suspension
The fixed top of one end connection of conducting wire, one end of the other end connection coil of the first suspension conducting wire, one end of the second suspension conducting wire
The fixed bottom end of connection, the other end of the other end connection coil of the second suspension conducting wire.
5. geomagnetism horizontal component dynamic monitoring device according to claim 1, which is characterized in that the monitoring device includes
Photo is transferred to computer after video camera shooting luminous point photo by video camera, computer system, video camera connection computer system
System, by obtaining dynamic geomagnetism horizontal component after computer system processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610077509.5A CN105549102B (en) | 2016-02-03 | 2016-02-03 | Geomagnetism horizontal component dynamic monitoring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610077509.5A CN105549102B (en) | 2016-02-03 | 2016-02-03 | Geomagnetism horizontal component dynamic monitoring device |
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| Publication Number | Publication Date |
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| CN105549102A CN105549102A (en) | 2016-05-04 |
| CN105549102B true CN105549102B (en) | 2018-07-10 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106970339A (en) * | 2017-02-28 | 2017-07-21 | 北京建筑大学 | The measurement apparatus and measuring method of a kind of geomagnetic field horizontal component |
| CN110779455B (en) * | 2019-10-29 | 2021-03-26 | 燕山大学 | Device and process for measuring expansion amount of heated gear by laser reflection |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2151627A (en) * | 1938-10-28 | 1939-03-21 | Gulf Research Development Co | Apparatus for and method of measuring the terrestrial magnetic field |
| US3423672A (en) * | 1967-05-08 | 1969-01-21 | Raymond F Stockton | Terrestrial magnetism responsive device including fluid supported indicating means for investigating subsurface characteristics of the earth |
| CN200950165Y (en) * | 2006-08-10 | 2007-09-19 | 中国地质大学（武汉） | Earth magnetic field induction device |
| CN202995052U (en) * | 2012-06-05 | 2013-06-12 | 郑州晶微电子科技有限公司 | Instrument for measuring geomagnetic declination and inclination |
| CN205539523U (en) * | 2016-02-03 | 2016-08-31 | 南京信息工程大学 | Earth magnetism horizontal component developments monitoring device |
-
2016
- 2016-02-03 CN CN201610077509.5A patent/CN105549102B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2151627A (en) * | 1938-10-28 | 1939-03-21 | Gulf Research Development Co | Apparatus for and method of measuring the terrestrial magnetic field |
| US3423672A (en) * | 1967-05-08 | 1969-01-21 | Raymond F Stockton | Terrestrial magnetism responsive device including fluid supported indicating means for investigating subsurface characteristics of the earth |
| CN200950165Y (en) * | 2006-08-10 | 2007-09-19 | 中国地质大学（武汉） | Earth magnetic field induction device |
| CN202995052U (en) * | 2012-06-05 | 2013-06-12 | 郑州晶微电子科技有限公司 | Instrument for measuring geomagnetic declination and inclination |
| CN205539523U (en) * | 2016-02-03 | 2016-08-31 | 南京信息工程大学 | Earth magnetism horizontal component developments monitoring device |
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