On-orbit fault warning and screening device for spacecraft

Abstract

The invention discloses an on-orbit fault early warning detection device for a spacecraft, comprising a detector housing, three groups of detection units, an energy analyzer, a low-energy charged particle detector, and a high-energy charged particle detector, wherein the three groups of detection units are composed of Composed of a temperature sensor and a total dose sensor, respectively detect the radiation effect under the unshielded state, the equivalent shielding thickness of the spacecraft bulkhead thickness, and the total equivalent shielding thickness inside the spacecraft; the energy analyzer is used to detect electrons below 100keV , the low-energy charged particle detector and the high-energy charged particle detector respectively detect low-energy and high-energy electrons / protons. The invention can realize the hierarchical detection of electrons and protons with different energies, obtain the total dose data and dose rate data at different positions on the surface and inside of the spacecraft at the same time, and has multiple functions, accurate on-orbit fault warning and fault screening of the spacecraft Features.

Description

technical field [0001] The invention belongs to the technical field of spacecraft on-orbit situation detection, and specifically relates to a spacecraft on-orbit fault early warning detection device. Background technique [0002] The space radiation environment mainly comes from stellar radiation belts, solar cosmic rays, and galactic cosmic rays, and its main components are electrons, protons and a small amount of heavy ions. Among them, the Earth's radiation belt environment is one of the most important radiation environments affecting spacecraft in low-Earth orbit, and can usually be divided into the inner radiation belt and the outer radiation belt. During solar flares, a large number of high-energy protons, electrons, and heavy nuclear particles are emitted, which are called solar cosmic rays. Most of them are composed of protons, so it is also known as the solar proton event. The energy of solar cosmic ray particles generally ranges from 10 MeV to tens of GeV. Its c...

AI Technical Summary

Problems solved by technology

[0010] 4) The space radiation environment leads to the main reasons for spacecraft on-orbit failures

[0013] At present, there is no device for early warning and screening of spacecraft on-orbit failures at home and abroad, and it is impossible to realize a detection device for early warning and screening of spacecraft on-orbit failures

Images