CN200972724Y

CN200972724Y - Sun seeing moving trace optical tracker

Info

Publication number: CN200972724Y
Application number: CN 200620065679
Authority: CN
Inventors: 黄骏
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-10-16
Filing date: 2006-10-16
Publication date: 2007-11-07
Anticipated expiration: 2016-10-16

Abstract

An optical tracker for the sun's orbit of visual motion relates to an education or demonstration tool, which provides an optical tracker for the sun orbit of visual motion. The product has the advantages of convenient use, simple structured, and can reflect directly the sun's orbit of visual motion, which is provided with a base, a stand and a half-ring support, and on the base are provided spiral support nails, a compass and an air bubble style level tool; a rotation axis, fasteners and an angle pointer are provided on the stand; the front end of the half-ring support is connected to the stand, and on the support is provided an angle scale, a sphere lens, spiral support nails for the sphere lens and a ray-focalizing plate, and at the inner sides of the ray-focalizing plate are provided figure and character marks, twenty-four solar terms including the equator, and the latitude lines of The Tropic of Cancer and Tropic of Capricorn and corresponding characters are marked along the ray-focalizing plate's long transverse direction with the central latitude line on the equator position (the vernal equinox and the autumnal equinox), the latitude lines at the upper and lower ends on the position of The Tropic of Cancer (the Summer Solstice) and Tropic of Capricorn (the Winter Solstice), and the partition space among the latitude lines of other solar terms in sinusoidal distribution; longitude lines with a partition space of 15 degree and corresponding characters are marked along the ray-focalizing plate's longitudinal direction with the central longitude line on the position of 12:00.

Description

Apparent motion of the sun track optical tracker

Technical field

The utility model relates to a kind of education or demonstration equipment, especially relates to a kind of optics education or demonstration equipment of tracing display apparent motion of the sun track.

Background technology

Because the equatorial plane and the earth 's orbit face of the earth are 23 ° of 26 ' angles of cut, when the earth orbits the sun along the revolution orbit ring, (23 ° of 26 ' N～23 ° 26 ' S) are carried out back and forth movement one time with the time in a tropic year to subsolar point between the tropic of earth north and south, any one ground point observation sun on earth, the Changing Pattern in apparent motion of the sun track every year also is like this.Since the difficulty of sight observation apparent motion of the sun track and the complexity of tracing-positioning system, the present easy science and education instrument that does not occur directly reflecting the apparent motion of the sun track as yet.

Summary of the invention

The purpose of this utility model is instrument all at the simple and easy section of incompetent directly reflection apparent motion of the sun track still, and light observation apparent motion of the sun track problem such as difficulty comparatively again, provide a kind of easy to use, can directly reflect the apparent motion of the sun track, apparent motion of the sun track optical tracker simple in structure.

The utility model is provided with:

Pedestal, pedestal are provided with spiral support pin, compass and bubble type horizon equipment, and compass is located at the middle part of pedestal, and the bubble type horizon equipment is located at pedestal top one side;

Stand, stand are provided with rotating shaft, securing member and angle indicator, and the opposite side of pedestal top is located in stand, and angle indicator is fixed on the upper end of stand;

Semi-circular support, the front end of semi-circular support is connected with stand with securing member by the rotating shaft in the stand, semi-circular support can rotate in 0～90 ° of elevation coverage and be fastening, semi-circular support is provided with angle dial, globe lens, globe lens spiral support pin and light focusing panel, angle dial is fixed on the ring support front end, and globe lens is placed in the geometric center position of semi-circular support by the globe lens spiral support pin that is positioned at semi-circular support two ends.The light focusing panel be arranged on semi-circular support directly over, the part that is shaped as global shell of light focusing panel, its inboard radius equals the focal length value of globe lens, the inboard of light focusing panel is provided with graphic context label, its Width indicates the twenty-four solar terms and contains the parallel and the corresponding character of equator, the north and south tropic, the center parallel is position, equator (Spring Equinox, the Autumnal Equinox), the two ends parallel is the tropic of Capricorn (Winter Solstice) and the tropic of Cancer (Summer Solstice) position up and down, and the spacing of other solar term parallels is sinusoidal rule and distributes; Its length direction indicates 15 ° the warp and the numeral in the corresponding moment at interval, and the center warp is the 12:00 position.

For easy to use, calendar (solar term, the Gregorian calendar, the constellation) table of comparisons, time zone (central meridian, the main international city) table of comparisons, longitude and latitude (domestic main cities) table of comparisons can be set above pedestal.

About the desirable 160 ° of arc length of the length of described light focusing panel, about the desirable 57 ° of arc length of width.

The utility model can will be difficult to come out by the optical ball lens are shown continuously (or record) on the focusing panel with the apparent motion of the sun track of sight observation, follow the tracks of and reflection different solar terms (or date) apparent motion of the sun track with the means of experiment, and can verify the correctness of subsolar point recurrent mutation also to possess the anti-positioning function that pushes away the observation place longitude and latitude simultaneously.Have simple in structure, intuitive is strong, advantage such as multiple functional, is particularly useful for teaching and activity to popularize scientific knowledge, helps understanding and the grasp of teenager to astronomical geography knowledge.

Description of drawings

Fig. 1 is the main TV structure synoptic diagram of the utility model embodiment.

Fig. 2 is the plan structure synoptic diagram of the utility model embodiment.

Embodiment

As shown in Figure 1 and Figure 2, the utility model is provided with pedestal 1, stand 2, semi-circular support 3, optical ball lens 4; 3 spiral support pins 11 of pedestal 1 below distribution, compass 12 is settled at the middle part, and top one side is settled bubble type horizon equipment 13, opposite side vertical fixing stand 2; The upper end of stand 2 is connected with semi-circular support 3 by rotating shaft and securing member 21, and angle indicator 22 is fixed on the upper end of stand 2; Light focusing panel 33 be placed in semi-circular support 3 directly over, angle dial 31 is fixed on the front end of semi-circular support 3; Optical ball lens 4 are placed in the geometric center position of semi-circular support 3 by the globe lens spiral support pin 32 that is positioned at semi-circular support 3 two ends.

During use, sensing according to compass 12 pointers, be positioned at the end sensing positive north (be positioned at the Southern Hemisphere point to Due South) of user's rotating base 1 in the Northern Hemisphere with semi-circular support 3, the spiral support pin 11 of regulating pedestal 1 below according to the bubble type horizon equipment makes pedestal 1 be in horizontality, adjust the elevation angle of semi-circular support 3, make its elevation value equal the on-site latitude value of test point.At this moment, parallel (because terrestrial magnetic pole position and position, the earth polar deviation slightly of the axis of optical ball lens 4 with the earth's axis, if will accurately locate, need carry out the magnetic variation correction), it is similar to the optical ball lens 4 surperficial tracks that upward move that promptly subsolar point is gone up the track that moves at the earth's surface.When the parallel rays of the sun passes through optical ball lens 4, can on focusing panel 33, be focused into a sparklet, this sparklet pairing parallel on focusing panel 33 is the solar term (or date) of this observation place, and pairing warp is the concrete moment in this time zone, observation place.Owing to focus on the panel 33 and only indicate the parallel of the twenty-four solar terms and the warp and the literal of integral point, between its warp and weft, then available method of interpolation is calculated as if sparklet.On the daytime that sunlight is arranged, it is traversing on the parallel that focuses on somewhere on the panel that sparklet is accompanied by passage of time, its track be this place apparent motion of the sun on the same day running orbit (because sparklet is positioned at the opposite side of globe lens 4 photocentres, thus turn upside down just with the apparent motion of the sun track at sparklet motion track on the focusing panel 33, about opposite).When observing the running orbit of apparent motion of the sun one day, can repeatedly observe on the same day, also can adhere to cardboard on focusing panel 33, mobile sparklet can stay the vestige that burns together on cardboard, so just apparent motion of the sun track record on the same day can be got off.Because the apparent motion of the sun track is in different parallel position (except day in the Spring Equinox, day in the Autumnal Equinox) every day, and annual between the tropic of north and south round trip, as long as observe by several Special Days (winter solstice, summer solstice, day in the Spring Equinox, day in the Autumnal Equinox etc.), can verify the correctness that this is theoretical.

The utility model also can be according to the anti-longitude and latitude that pushes away the observation place of some time one day: adjust the elevation angle of semi-circular support 3, when sparklet was positioned on these solar term parallel on (or date), the indicated value of its angle dial 31 was the latitude value of this place correspondence; According to the longitude of this time zone central meridian and the sparklet corresponding longitude of extrapolating this place reality through line position on focusing surface.For example: Beijing time on Dec 22 (winter solstice) when trivial (i.e. east 8) 12:00, the city tests at Taiyuan, Shanxi, the elevation angle of adjusting semi-circular support 3 is positioned on the parallel of focusing surface Winter Solstice (tropic of Cancer) sparklet, and this moment, the indicated value of angle dial 31 was 37.8 °; In the longitudinal that focuses on panel, through line position, the central meridian of Dong8Qu is 120 ° of east longitudes to sparklet at 11:30 at this moment, because 15 ° of 1 hour time differences of the every interval of longitude, 0.5 hour differ 7.5 °, the longitude that therefore can extrapolate this place reality is 112.5 ° of east longitudes; Be that the Taiyuan City is positioned on the position of 112.5 ° of 37.8 ° of east longitudes of north latitude.In like manner, other situations are analogized.In Fig. 1, latitude accent scope is 90 °, and sun direct projection recurrent mutation scope is 46 ° 52 '.

Claims

1. apparent motion of the sun track optical tracker is characterized in that being provided with:

Semi-circular support, the front end of semi-circular support is connected with stand with securing member by the rotating shaft in the stand, semi-circular support can rotate in 0～90 ° of elevation coverage and be fastening, semi-circular support is provided with angle dial, globe lens, globe lens spiral support pin and light focusing panel, angle dial is fixed on the ring support front end, globe lens is placed in the geometric center position of semi-circular support by the globe lens spiral support pin that is positioned at semi-circular support two ends, the light focusing panel be arranged on semi-circular support directly over, the part that is shaped as global shell of light focusing panel, its inboard radius equals the focal length value of globe lens, the inboard of light focusing panel is provided with graphic context label, its Width indicates the twenty-four solar terms and contains the equator, the parallel of the north and south tropic and corresponding character, the center parallel is that the equator comprises the spring and fall equinoxes position, the two ends parallel is that the tropic of Capricorn comprises that the Winter Solstice and the tropic of Cancer comprise position in the Summer Solstice up and down, and the spacing of other solar term parallels is sinusoidal rule and distributes; Its length direction indicates 15 ° the warp and the numeral in the corresponding moment at interval, and the center warp is the 12:00 position.

2. apparent motion of the sun track optical tracker as claimed in claim 1, it is characterized in that above pedestal, being provided with the calendar table of comparisons, the time zone table of comparisons and the longitude and latitude table of comparisons, the calendar table of comparisons comprises solar term, the Gregorian calendar and constellation, the time zone table of comparisons comprises central meridian and main international city, and the longitude and latitude table of comparisons comprises domestic main cities.

3. apparent motion of the sun track optical tracker as claimed in claim 1 is characterized in that the length of described light focusing panel is got 160 ° of arc length, and width is got 57 ° of arc length.