Dynamic nitrogen charging system of astronomical observation equipment applicable to polar region conditions

Abstract

The invention provides a dynamic nitrogen charging system of astronomical observation equipment applicable to polar region conditions. A seal cover is arranged on a telescope lens barrel. The dynamic nitrogen charging system is characterized in that the seal cover is connected with a nitrogen cylinder by a quick coupling, a hose and an electromagnetic valve; and the electromagnetic valve is connected with a control system by a network. According to the optimized scheme, two or more nitrogen cylinders are adopted to commonly provide nitrogen gas for the telescope lens barrel, and the two or more nitrogen cylinders are also connected by hoses, and connected into the electromagnetic valve through a three-way connector so as to ensure that two charging cylinders are connected in parallel. A switch of the electromagnetic valve is controlled remotely by adopting an iridium satellite. The nitrogen charging system can meet the requirement that a precise opto-electro-mechanical system can be used in severe polar environment in a hibernating manner under unmanned state, prevents the frost formation on a mirror surface, is convenient and simple to install, and can protect precise instrument in the telescopic barrel.

Description

technical field [0001] The invention belongs to a nitrogen filling system, in particular to a dynamic nitrogen filling system suitable for astronomical observation equipment under polar conditions. Background technique [0002] Filling the internal closed space of precision instruments with nitrogen as a protective gas can effectively prevent the instruments from being oxidized, prolong the service life of precision instruments, and ensure the reliable performance of precision instruments. Therefore, manufacturers often fill the internal spaces of these instruments when they leave the factory. nitrogen. [0003] As a sophisticated opto-mechanical system, professional astronomical telescopes are used or stored in places with temperature differences. Water vapor will often condense on the surface of the object. If the interior of the telescope cannot prevent water vapor from entering, frost will easily form in the lens barrel, which will not only affect imaging, but also...

AI Technical Summary

Problems solved by technology

[0004] At present, the nitrogen filling of the telescope is usually "one-time molding", and there is a lack of a dynamic system to fill the nitrogen in time according to the nitrogen inside the lens barrel. Dome A area is only suitable for human work for half a month every year. Most of the time the telescope is unattended. A dynamic nitrogen filling system is needed to fill the nitrogen as needed to drive away the water vapor inside the lens barrel and ensure that the mirror does not frost. Prevent internal precision instruments from being oxidized and prolong the service life of the telescope

There is no suitable technical solution in the prior art

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