CN103234533A - True bearing magnetic compass - Google Patents
True bearing magnetic compass Download PDFInfo
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- CN103234533A CN103234533A CN2013101324639A CN201310132463A CN103234533A CN 103234533 A CN103234533 A CN 103234533A CN 2013101324639 A CN2013101324639 A CN 2013101324639A CN 201310132463 A CN201310132463 A CN 201310132463A CN 103234533 A CN103234533 A CN 103234533A
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- magnetic compass
- buoyancy aid
- magnetic
- true bearing
- azimuth
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Abstract
The invention discloses a true bearing magnetic compass, which is provided with a cylindrical housing with a transparent top cover, wherein a columnar magnetic compass floating body is arranged inside the cylindrical housing, a liquid is filled between the magnetic compass floating body and the cylindrical housing, a magnetic rod is arranged inside the magnetic compass floating body, the upper surface of the magnetic compass floating body is marked with a magnetic north direction line, and is further provided with an azimuth dial, the surface of the azimuth dial is marked with an azimuth partition line and a true north direction line, and the azimuth dial can float and rotate along with the magnetic compass floating body, and can rotate relative to the magnetic compass floating body. With the true bearing magnetic compass, the true north direction and the true bearing can be accurately measured and calibrated, such that the magnetic compass use is convenient. The true bearing magnetic compass can be widely used in navigation, geodetic survey, geological exploration, travel, military, and other fields.
Description
Technical field
The present invention relates to a kind of orienting device, especially a kind of easy to operate, can accurately demarcate the magnetic compass of real north and true bearing.
Background technology
Magnetic compass (also claiming magnetic compass) provides the instrument in directional reference, indication course, is usually used in aspects such as navigation, aviation, geodetic surveying, geologic prospecting, travelling and military affairs.Existing magnetic compass is provided with the transparent cylindrical shell of top cover, in cylindrical shell, be provided with the magnetic compass buoyancy aid of column, be filled with liquid between magnetic compass buoyancy aid and the cylindrical shell, be mounted with bar magnet in the magnetic compass buoyancy aid, the upper surface of magnetic compass buoyancy aid is fixedly connected with the sensing dish, indicate north arrow and azimuth scale line in the sensing panel surface, magnetic north points to 0 degree or 360 degree that pin points to the azimuth scale line.During use, because bar magnet automatically points to the magnetic meridian direction under the effect of terrestrial magnetic field, thereby drive the sensing dish with magnetic compass buoyancy aid unitary rotation, people are by observing the sensing dish, just concrete sensing and the orientation of Location as can be known.As everyone knows, do not overlap because two magnetic poles of the earth and geographical south poles just approach, magnetic declination i.e. between the two angle, so existing magnetic compass north arrow just magnetic north pole pointed is not the geographical geographical north utmost point.Yet required in the routine work life is geographical north extreme direction and true bearing, and therefore existing magnetic compass is can not be accurately directed and accurately fix the position.In addition, because heterogeneous body and the kinetic characteristic of the earth, cause also (annotate: the maximum magnetic flux drift angle in China area can reach 11 degree) inequality and the slowly variation in time of magnetic declination of different regions on the earth, even determined the magnetic declination in somewhere, also can't correct and demarcate at existing magnetic compass, the user can only add and subtract conversion to magnetic compass direction and orientation reading afterwards, and is very inconvenient.
Summary of the invention
The present invention is in order to solve existing in prior technology the problems referred to above, provide a kind of easy to operate, can accurately demarcate the magnetic compass of real north and true bearing.
Technical solution of the present invention is: a kind of true bearing magnetic compass, be provided with the transparent cylindrical shell of top cover, in cylindrical shell, be provided with the magnetic compass buoyancy aid of column, be filled with liquid between magnetic compass buoyancy aid and the cylindrical shell, be mounted with bar magnet in the magnetic compass buoyancy aid, the upper surface of magnetic compass buoyancy aid indicates the magnetic north Direction Line, upper surface at the magnetic compass buoyancy aid is provided with azimuth circle, the azimuth circle surface indicates azimuth scale line and geographical north Direction Line, and azimuth circle can float, rotate and can rotate with respect to the magnetic compass buoyancy aid with magnetic compass buoyancy aid one.
The upper surface of described magnetic compass buoyancy aid is fixedly connected with the shaft collar that indicates the magnetic north Direction Line, described azimuth circle and shaft collar socket, and azimuth circle can rotate with respect to shaft collar.
Be provided with axonometer at described cylindrical shell inner bottom part circle centre position, be provided with the taper axle cap corresponding with axonometer at the outer bottom circle centre position of magnetic compass buoyancy aid.
Be provided with axonometer at described cylindrical shell inner bottom part circle centre position, in the magnetic compass buoyancy aid, have run through the magnetic compass float shaft to hollow shaft sleeve, described axonometer passes hollow shaft sleeve.
Described hollow shaft sleeve be shaped as the last inferior pyramidal assembly that up and down the two ends diameter is big, mid diameter is little.
The described shaft collar that indicates the magnetic north Direction Line is the outer toroid that is fixed in magnetic compass buoyancy aid upper surface, described azimuth circle is the circular discs that is socketed in the outer toroid, described azimuth circle center is provided with the rotation regulating tank, and described cylindrical shell transparent cap center is provided with hole and openable dome.
Be provided with and rotate the matching used regulator of regulating tank, the regulator bottom shape matches with the shape of rotating regulating tank.
Described regulator is made up of outer sleeve and inner prop, and outer sleeve can slide relatively around inner prop, and inner prop is longer than outer sleeve.
Be provided with the corona pin of measuring solar azimuth, the corona pin can be inserted and stand on the rotation regulating tank.
Though the present invention is simple in structure, ingeniously solved people for many years and thirsted for the technical barrier that solves always, can accurately measure and demarcate real north and true bearing, make the use of magnetic compass convenient and accurate, can be widely used in aspects such as navigation, geodetic surveying, geologic prospecting, travelling and military affairs.
Description of drawings
Fig. 1, Fig. 2 are the structural representations of the embodiment of the invention 1.
Fig. 3, Fig. 4 are the structural representations of the embodiment of the invention 2.
Fig. 5 is the structural representation of the embodiment of the invention 3.
Fig. 6, Fig. 7 are the structural representations of the embodiment of the invention 4.
Fig. 8 is the structural representation of the embodiment of the invention 5.
Fig. 9 is the structural representation of the embodiment of the invention 6.
Figure 10 is the structural representation of the embodiment of the invention 7.
Embodiment
Embodiment 1:
As Fig. 1,2 show: as prior art, the transparent cylindrical shell 1 of top cover that useful stainless steel or engineering plastics etc. are made, open in order to seal and to be convenient to, preferably adopt between transparent cap and the cylindrical shell 1 and be threaded, in cylindrical shell 1, be provided with the magnetic compass buoyancy aid 2 of column, be filled with liquid between magnetic compass buoyancy aid 2 and the cylindrical shell 1, be mounted with a bar magnet 3 in the magnetic compass buoyancy aid 2, magnetic compass buoyancy aid 2 upper surface indicate magnetic north Direction Line 5, with the prior art difference: cover at the upper surface of magnetic compass buoyancy aid 2 that being provided with to float with magnetic compass buoyancy aid 2 one rotates and relatively turnable circular azimuth circle 6, azimuth circle 6 surfaces indicate azimuth scale line 7 and point to the geographical north Direction Lines 8 of 0 degree or 360 degree.Circular azimuth circle 6 adopts transparent or opaque stainless steels or engineering plastics etc. to make, and when adopting opaque material, circular azimuth circle 6 sizes should be slightly less than the upper surface of magnetic compass buoyancy aid 2.
The course of work of embodiment 1: cylindrical shell 1 is placed level, open the transparent cap of cylindrical shell 1, magnetic declination according to regional location of living in, rotational orientation scale 6, make geographical north Direction Line 8 and the angle numerical value of magnetic north Direction Line 5 equal magnetic declination, this moment, no matter how magnetic compass buoyancy aid 2 freely rotated under the effect of terrestrial magnetic field, and the Direction Line 8 of azimuth circle 6 all points to the geographical north of the earth, namely sensing and orientation are geographical north and true bearing, and follow-up using method is same as the prior art.
Embodiment 2:
Shown in Fig. 3,4: basic structure is with embodiment 1, difference from Example 1 is: the upper surface of magnetic compass buoyancy aid 2 is fixedly connected with the shaft collar 4 that indicates magnetic north Direction Line 5, shaft collar 4 is the outer toroid that are fixed in magnetic compass buoyancy aid 2 upper surfaces, and circular azimuth circle 6 is socketed in outer toroid.
The course of work is with embodiment 1.
Embodiment 3:
As shown in Figure 5: basic structure is with embodiment 2, and difference from Example 2 is: shaft collar 4 is the disks that are fixed in magnetic compass buoyancy aid 2 upper surface centers, and azimuth circle 6 is to be socketed in the outer annulus of disk.
The course of work is with embodiment 1.
Embodiment 4:
Shown in Fig. 6,7: basic structure is with embodiment 2, with embodiment 2 differences be: be provided with poroid rotation regulating tank 9 in the middle of the circular azimuth circle 6, also be provided with in addition and rotate regulating tank 9 matching used regulators 10, regulator 10 bottom shapes match with the shape of rotating regulating tank 9, regulator 10 is inserted rotation regulating tank 9 azimuth circle 6 is rotated with respect to annulus 4.Regulator 10 is made up of outer sleeve 13 and inner prop 14, and outer sleeve 13 can slide relatively around inner prop 14, and inner prop 14 is longer than outer sleeve 13.Also be provided with the corona pin 11 that to measure solar azimuth in addition, corona pin 11 can be inserted the rotation regulating tank 9 that stands on azimuth circle 6 during use.Simultaneously, be provided with hole and openable dome 12 at cylindrical shell 1 transparent cap center.
The course of work of embodiment 4: cylindrical shell 1 is placed level, open the dome 12 on cylindrical shell 1 transparent cap, corona pin 11 is inserted the rotation regulating tank 9 that stands on azimuth circle 6, measure solar azimuth, calculate magnetic declination, extract corona pin 11 then, regulator 10 is inserted rotation regulating tank 9, firmly the inner prop 14 by regulator 10 makes magnetic compass buoyancy aid 2 fixing, and make the geographical north Direction Line 8 of azimuth circle 6 and the angle numerical value of magnetic north Direction Line 5 equal magnetic declination by regulating outer sleeve 13 this moment again.
Embodiment 5:
As shown in Figure 8: basic structure is with embodiment 2, with embodiment 2 differences be: be provided with axonometer 15 at cylindrical shell 1 inner bottom part circle centre position, outer bottom circle centre position at magnetic compass buoyancy aid 2 is provided with taper axle cap 16 accordingly, outer bottom taper axle cap 16 with magnetic compass buoyancy aid 2 during use is enclosed within on the axonometer 15, purpose is no longer arbitrarily to move horizontally when making magnetic compass buoyancy aid 2 floating, can improve the accuracy that measure in the magnetic compass orientation.Simultaneously with embodiment 2 differences be: symmetrical placement has a pair of or many bar magnets 3 in magnetic compass buoyancy aid 2.
The course of work of embodiment 5: basic process with embodiment 2 with embodiment 2 differences is: when regulating the geographical north Direction Line 8 of azimuth circle 6, in order to protect axonometer 15, magnetic compass buoyancy aid 2 can be taken out in the cylindrical shell 1 and regulate.
Embodiment 6:
As shown in Figure 9: basic structure with embodiment 5 with embodiment 5 differences is: in the magnetic compass buoyancy aid, have run through the magnetic compass float shaft to hollow shaft sleeve 17, described axonometer 15 passes hollow shaft sleeve 17.
The course of work of embodiment 6: basic process is with embodiment 1.
Embodiment 7:
As shown in figure 10: basic structure with embodiment 6 with embodiment 6 differences is: the inner wall shape of the hollow shaft sleeve 16 of magnetic compass buoyancy aid 2 circle centre positions is the last inferior pyramidal assembly that the two ends diameter is big, mid diameter is little up and down.Being conducive to magnetic compass buoyancy aid 2 freely floats and rotates.
The course of work of embodiment 7: basic process is with embodiment 1.
Claims (9)
1. true bearing magnetic compass, be provided with the transparent cylindrical shell of top cover (1), in cylindrical shell (1), be provided with the magnetic compass buoyancy aid (2) of column, be filled with liquid between magnetic compass buoyancy aid (2) and the cylindrical shell (1), be mounted with bar magnet (3) in the magnetic compass buoyancy aid (2), the upper surface of magnetic compass buoyancy aid (2) indicates magnetic north Direction Line (5), upper surface at magnetic compass buoyancy aid (2) also is provided with azimuth circle (6), azimuth circle (6) surface indicates azimuth scale line (7) and geographical north Direction Line (8), it is characterized in that: described azimuth circle (6) can float and rotation with magnetic compass buoyancy aid (2) one, and can rotate with respect to magnetic compass buoyancy aid (2).
2. true bearing magnetic compass according to claim 1, it is characterized in that: the upper surface of described magnetic compass buoyancy aid (2) is fixedly connected with the shaft collar (4) that indicates magnetic north Direction Line (5), described azimuth circle (6) and shaft collar (4) socket, azimuth circle (6) can rotate with respect to shaft collar (4).
3. true bearing magnetic compass according to claim 1 and 2, it is characterized in that: be provided with axonometer (15) at described cylindrical shell (1) inner bottom part circle centre position, be provided with the taper axle cap (16) corresponding with axonometer (15) at the outer bottom circle centre position of magnetic compass buoyancy aid (2).
4. true bearing magnetic compass according to claim 1 and 2, it is characterized in that: be provided with axonometer (15) at described cylindrical shell (1) inner bottom part circle centre position, have in magnetic compass buoyancy aid (2) and run through the axial hollow shaft sleeve (17) of magnetic compass buoyancy aid (2), described axonometer (15) passes hollow shaft sleeve (17).
5. true bearing magnetic compass according to claim 4 is characterized in that: described hollow shaft sleeve (17) be shaped as the last inferior pyramidal assembly that the two ends diameter is big, mid diameter is little up and down.
6. true bearing magnetic compass according to claim 2, it is characterized in that: the described shaft collar (4) that indicates magnetic north Direction Line (5) is the outer toroid that is fixed in magnetic compass buoyancy aid upper surface, described azimuth circle (6) is the circular discs that is socketed in the outer toroid, described azimuth circle (6) center is provided with rotates regulating tank (9), and described cylindrical shell (1) transparent cap center is provided with hole and openable dome (12).
7. true bearing magnetic compass according to claim 2 is characterized in that: be provided with and rotate the matching used regulator of regulating tank (9) (10), regulator (10) bottom shape matches with the shape of rotating regulating tank (9).
8. true bearing magnetic compass according to claim 7, it is characterized in that: described regulator (10) is made up of outer sleeve (13) and inner prop (14), and outer sleeve (13) can slide relatively around inner prop (14), and inner prop (14) is longer than outer sleeve (13).
9. true bearing magnetic compass according to claim 6 is characterized in that: be provided with the corona pin (11) of measuring solar azimuth, corona pin (11) can be inserted to stand on and rotate regulating tank (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101324639A CN103234533A (en) | 2013-04-17 | 2013-04-17 | True bearing magnetic compass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101324639A CN103234533A (en) | 2013-04-17 | 2013-04-17 | True bearing magnetic compass |
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| Publication Number | Publication Date |
|---|---|
| CN103234533A true CN103234533A (en) | 2013-08-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2013101324639A Pending CN103234533A (en) | 2013-04-17 | 2013-04-17 | True bearing magnetic compass |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034321A (en) * | 2014-06-12 | 2014-09-10 | 长安大学 | Sun projection-based geological compass and pointing method |
| CN107504940A (en) * | 2017-07-14 | 2017-12-22 | 中国人民解放军镇江船艇学院 | For measuring the simulated compass and its azimuth measuring method of target bearing on ring curtain |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070137055A1 (en) * | 2005-12-16 | 2007-06-21 | Jui-An Tsai | Compass |
| CN2916577Y (en) * | 2006-06-23 | 2007-06-27 | 刘向钊 | Novel compass |
| CN201811740U (en) * | 2010-05-11 | 2011-04-27 | 昆明远达光学有限公司 | Miniaturized transparent box north arrow capable of projection imaging |
| CN202204514U (en) * | 2011-08-31 | 2012-04-25 | 程元钧 | Full automatic compass |
| CN203249625U (en) * | 2013-04-17 | 2013-10-23 | 刘雁春 | Magnetic compass pointing true bearings |
-
2013
- 2013-04-17 CN CN2013101324639A patent/CN103234533A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070137055A1 (en) * | 2005-12-16 | 2007-06-21 | Jui-An Tsai | Compass |
| CN2916577Y (en) * | 2006-06-23 | 2007-06-27 | 刘向钊 | Novel compass |
| CN201811740U (en) * | 2010-05-11 | 2011-04-27 | 昆明远达光学有限公司 | Miniaturized transparent box north arrow capable of projection imaging |
| CN202204514U (en) * | 2011-08-31 | 2012-04-25 | 程元钧 | Full automatic compass |
| CN203249625U (en) * | 2013-04-17 | 2013-10-23 | 刘雁春 | Magnetic compass pointing true bearings |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034321A (en) * | 2014-06-12 | 2014-09-10 | 长安大学 | Sun projection-based geological compass and pointing method |
| CN107504940A (en) * | 2017-07-14 | 2017-12-22 | 中国人民解放军镇江船艇学院 | For measuring the simulated compass and its azimuth measuring method of target bearing on ring curtain |
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Application publication date: 20130807 |