Normal-temperature infrared inner satellite imaging detector

Abstract

The invention discloses a normal-temperature infrared inner satellite imaging detector, suitable for detecting an inner satellite and belonging to the technical fields of spacecraft systems and measuring instruments. For detecting an inner satellite in a closed small-size space, the invention provides a far-infrared wave band-based infrared imaging detector system which comprises a short-focus lens, an infrared focal plane array of a non-refrigeration type, a data acquisition circuit and an image data processing unit, wherein the short-focus lens is suitable for imaging an object at a distance of 100-500 mm in a waveband of 8-12 mu m, and the infrared focal plane array of the non-refrigeration type working in the far-infrared waveband can induce a hot source at a normal temperature. Under the conditions of being independent of a light source and a temperature reference chip, the invention can realize the infrared imaging of a movable object under a satellite-borne small-size closed environment.

Description

technical field [0001] The invention belongs to the technical field of spacecraft systems and infrared measurement, and in particular relates to a detector for imaging by using far-infrared radiation naturally emitted by inner satellites in a normal temperature environment. Background technique [0002] The inner formation satellite system is a way of gravitational field measurement, and the real-time and accurate measurement of the relative positions of the inner satellite and the outer satellite is one of the keys to realize the inner formation mission. [0003] Infrared measurement methods are a viable means of relative position measurement. DeHoff R L of Stanford University's doctoral thesis in 1975 "Minimum thrusters control of a spinning drag-free satellite, including the design of a largecavity optical sensor )” proposed to use ultraviolet light to excite the phosphorus coating on the proof mass (the aforementioned inner satellite is also a proof mass), and use fence...

AI Technical Summary

Problems solved by technology

[0005] Although the current general-purpose thermal imager products working in the long infrared band are relatively mature, due to their versatility, the size, power consumption and weight are too large, which is far from meeting the needs of internal formation tasks for embedded design.

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