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Sextant high in horizontal stability

A stable and sextant technology, applied in the field of marine sextants and sextants, can solve problems such as affecting stability, and achieve the effects of improving horizontal stability, avoiding unstable holding and easy use.

Inactive Publication Date: 2016-06-08
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Then, it will still affect the stability due to the turbulence of the waves, and it cannot fundamentally solve the problem

Method used

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  • Sextant high in horizontal stability
  • Sextant high in horizontal stability
  • Sextant high in horizontal stability

Examples

Experimental program
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Embodiment Construction

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0020] like Figure 1~4 As shown, the sextant with good horizontal stability of this embodiment includes a disc body 1, a moving mirror 2, a fixed mirror 3, a telescope 4, a swing arm 5, a mounting shell 6, a bracket 7, a first reflective mirror 8 and a second mirror 8. Reflective mirror 9, dial 11 is arranged on the edge of disc body 1, moving mirror 2, fixed mirror 3 are all arranged on the disc body 1, the setting positions of moving mirror 2, fixed mirror 3 are the same as existing sextant, swing The arm 5 is rotatably arranged on the upper surface of the disc body 1 and one end is connected with the lower end of the moving mirror 2 . An adjustment handle 51 can be provided on the top of the swing arm 5 for easy adjustment.

[0021] The installation shell 6 in this embodiment is a hemispherical shell with the port facing upwards, and the...

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Abstract

A sextant high in horizontal stability comprises a panel, a moving mirror, a fixed mirror, a telescope, a swing arm, a mounting shell, a support, a first light-reflecting mirror and a second light-reflecting mirror, wherein the mounting shell is a hemispherical shell with an upward end opening, a dial of the panel faces downward and is arranged in the mounting shell vertically, and the sidewall of the mounting shell is provided with a through hole allowing the fixed mirror to expose. The mounting shell is mounted on the support by enabling the end opening thereof to keep parallel to the sea level constantly through a rotating mechanism. The first light-reflecting mirror and the second light-reflecting mirror are arranged on the panel, the first light-reflecting mirror is used for receiving rays reflected by the fixed mirror and reflecting the received rays to the second light-reflecting mirror, and the telescope is arranged on the mounting shell and capable of receiving rays reflected by the second light-reflecting mirror. The sextant high in horizontal stability has the advantages that the mounting shell is matched with the support to enable an observation surface of the sextant to keep horizontal to the sea level constantly, so that horizontal stability of the sextant is improved; the first light-reflecting mirror and the second light-reflecting mirror are matched with the moving mirror and the fixed mirror to enable the reflected rays to be positioned above the mounting shell, so that observation of the rays by the telescope is facilitated, and convenience in use is achieved.

Description

technical field [0001] The invention relates to the technical field of a marine sextant, in particular to a sextant with good horizontal stability. Background technique [0002] The sextant is an optical instrument commonly used in the field of navigation to measure the angle between two distant targets. It is mainly used to measure the angle between the sun or other celestial bodies and the sea level or horizon at a certain moment, so as to quickly know the position of the ship. latitude and longitude. [0003] When a ship sails in the ocean, it often encounters strong winds and waves, and the pitching of the ship will cause large heel and trim angles. Under such sea conditions, it is inconvenient to use a conventional sextant to measure the sun's altitude angle, and it is easy to cause large errors. At the same time, because the existing sextant is generally used directly in the hand, the metal sextant is relatively heavy, and after holding it for a certain period of time...

Claims

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Application Information

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IPC IPC(8): G01C1/10
CPCG01C1/10
Inventor 池弘福吴易甲
Owner ZHEJIANG OCEAN UNIV
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