Photoelectric armillary sphere
An armillary sphere and photoelectric technology, applied in planetariums/globes, instruments, educational appliances, etc., can solve the problems of high cost, high environmental requirements, and inconvenient operation, and achieve the effect of low cost and low requirements for the demonstration environment
Active Publication Date: 2013-05-29
汪和平
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Problems solved by technology
It is one of the traditional inventions of China, but its operation is inconvenient, and it is difficult to dynamically and intuitively analyze the laws of motion of celestial bodies, so that people rarely see the actual armillary sphere
Modern planetariums use projectors to project celestial phenomena onto spherical roofs to demonstrate changes in celestial body movements, which can only be demonstrated in specific classrooms. Therefore, they have high environmental requirements, high costs, and inconvenient operation, making it difficult to observe and analyze celestial bodies dynamically and intuitively. law of motion
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[0018] like figure 1 , figure 2 As shown, a kind of photoelectric armillary sphere of the present invention comprises a base 1, an inner ball 2, an outer ball 3, a fixing device 4, a one-way motor 5, a two-way motor 6, a laser emitter 7 and an inner shaft, an inner ball 2 and an outer ball 3 They are all hollow balls, wherein the inner ball 2 is made of translucent material, the fixing device 4 is a hollow cylinder made of transparent material, the outer ball 3 is fixed on the base 1, and the outer ball 3 is divided by a horizontal circle parallel to the base It is a transparent upper hemisphere and a translucent lower hemisphere, wherein the transparent upper hemisphere represents the hemisphere of the day, and the translucent lower hemisphere represents the night hemisphere. Comprising left half shaft 8 and right half shaft 9, the axes of two half shafts 8 and 9 are on the same straight line crossing the center of the sphere, and the inner ends of left half shaft 8 and rig...
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The invention discloses a photoelectric armillary sphere which mainly serves as a geographic teaching demonstration instrument. The photoelectric armillary sphere is composed of a base bracket, an inner sphere, an outer sphere and a small adjustable rotary laser projector, wherein the inner sphere and the outer sphere are connected and sheathed and are concentric and coaxial, and the laser projector is positioned in the center of the inner sphere. The inner sphere and the outer sphere are both marked with longitudes, latitudes and degrees, the kinematic relation between the sun and the earth can be demonstrated by the rotation and the adjustment of the projector on the center of the inner sphere; the inner sphere is rotated to the corresponding position to read the kinematic rule of the sun relatively to the earth from the outer fixed sphere, i.e. the apparent diurnal motion trajectory of sun in the observing site celestial sphere, and the direction, the sunrise direction and sunlight time of the sun in the observing site celestial sphere at any time in the day time; and the corresponding position of the sun in the inner sphere and the outer sphere can reflect the relation between two movements and can be used for demonstrating the movement trajectories of other celestial bodies.
Description
technical field [0001] The invention relates to an astronomical demonstration instrument, in particular to a photoelectric armillary sphere for observing the laws of solar motion. Background technique [0002] The armillary sphere is the general term for the armillary sphere and the armillary sphere. The armillary sphere is an instrument for measuring the spherical coordinates of celestial bodies, and the armillary sphere is an instrument used to demonstrate astronomical phenomena in ancient times. It is one of the traditional inventions of China, but its operation is inconvenient, and it is difficult to dynamically and intuitively analyze the laws of motion of celestial bodies, so that people rarely see the actual armillary sphere in ancient times. Modern planetariums use projectors to project celestial phenomena onto spherical roofs to demonstrate changes in celestial body movements, which can only be demonstrated in specific classrooms. Therefore, they have high environme...
Claims
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IPC IPC(8): G09B27/06
Inventor 汪和平
Owner 汪和平