Light and small ionospheric photometer suitable for micro/nano satellite

Abstract

The invention discloses an ionospheric photometer suitable for a micro / nano satellite platform, which comprises a hollow parabolic reflector, an MCP-type anti-vibration detector and a circuit board, wherein the reflector and the detector are sequentially arranged in the circuit board and light incident to a reflector plate is made to be gathered to the detector; the detector comprises a supportingframe and a BaF2 crystal window, a microchannel plate, a detector anode and a high voltage power supply in the frame; after the light passes through the BaF2 crystal window to filter stray light, photoelectric conversion and electron multiplication are carried out through the microchannel plate, and through the detector anode, multiplied charge cloud signals are received. The weight of the existing photometer is reduced from more than 5Kg to less than 1Kg, the volume is decreased by more than 50%, photon filter losses are reduced, the sensitivity of the instrument is increased by more than 30%, batch processing is facilitated, and the batch production cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of space ionospheric detection, in particular, the invention relates to a light and small ionospheric photometer suitable for micro-nano satellites. Background technique [0002] Usually, when a radio signal propagates in the earth's ionosphere, the path will bend and the propagation speed will also change, which will weaken the propagation effect of the radio signal. The earth's ionosphere refers to: the sun's electromagnetic radiation irradiates the atmosphere, making a certain layer of the atmosphere Partially ionized, in the form of ions and electrons, mainly located between altitudes of 60km to about 450km above the ground, with global coverage. The impact of the ionosphere on radio signals mainly comes from the total electron content of the earth's ionosphere, which is manifested in the error caused by the delay caused by the refraction effect of the ionosphere. The ionosphere has an important impact ...

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Problems solved by technology

[0006] Based on this, the purpose of the invention of the present invention is to solve the technical problem that the traditional ionospheric photometer is difficult to be applied to the micro-nano satellite platform to realize the global coverage detection of the ionosphere due to the limitation of volume and weight.

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