Non-refrigeration infrared focal plane array static state horizon

An infrared focal plane, non-cooling technology, applied in instruments, integrated navigators, measuring devices, etc., can solve the problems of high power consumption, short life, heavy weight, etc.

Inactive Publication Date: 2009-03-25
SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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  • Abstract
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  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to use staring imaging technology to develop a satellite attitude sensitive instrument based on uncooled infrared focal plane detectors, and to solve the traditional dynamic scanning infrared horizon i

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  • Non-refrigeration infrared focal plane array static state horizon
  • Non-refrigeration infrared focal plane array static state horizon
  • Non-refrigeration infrared focal plane array static state horizon

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[0025] Figure 2 constitutes an embodiment of the present invention.

[0026] The mid-infrared optical system of the present invention is composed of a germanium lens group, a band-pass filter and a detector window. The total field of view of the lens is 142°, and the passband range of the band-pass filter is 13.5-16.25 μm.

[0027] The detector adopts IDML073-XX-V3 detector from ULIS company, its response spectrum band is 8-16um, the number of pixels is 320×240 elements, the pixel size is 45um×45um, and the duty cycle of sensitive elements exceeds 85%. The working temperature of the device is 30°C±2°C, and the temperature stability is less than 0.01°C.

[0028] The design of the front-end electronics system is centered on the area array detector, which mainly includes power supply and detector bias, detector temperature control, analog signal pre-amplification, analog-to-digital conversion, and logic sequential circuits. Among them, the system power supply and bias power sup...

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Abstract

The invention discloses an area array static horizon sensor provided with an uncooled infrared focal plane, which is used for measuring the satellite attitude. The horizon sensor consists of four subsystems, namely a large-view field infrared optical system, a detector, a front electronic system and a rear DSP image information processing system. The product obtains infrared radiation images of carbon dioxide absorption bands on a radiation wave band between 13.5 and 16.25 micrometers of the earth by means of staring imaging, and calculates the rolling and pitching attitude angle information of a satellite relative to the local vertical of the earth through processing of the infrared images, wherein the measuring precision can reach 0.2 DEG. The area array static horizon sensor provided with the uncooled infrared focal plane has the characteristics of high precision, low power consumption, light weight, long service life and so on, and is a novel-generation infrared horizon sensor with innovation and wide application prospect.

Description

technical field [0001] The invention relates to space science instrument technology, in particular to a non-cooling infrared focal plane array static horizon, which is used for satellite attitude measurement. Background technique [0002] The early infrared horizon was used to control missile engine ignition and reentry experiments. It was first used on a satellite in February 1959, and successfully measured the attitude of the satellite flying around the earth. Compared with other sensitive technologies, infrared horizon is simple, reliable, and has high attitude measurement accuracy, so it develops rapidly. It will be widely used in future manned spacecraft, especially in artificial satellites such as ground-oriented reconnaissance, meteorology, communication, and ground information. [0003] The function of the infrared horizon is to calculate the satellite's roll angle deviation θR and pitch angle deviation θP relative to the earth, so as to measure the satellite's roll...

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Application Information

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IPC IPC(8): G01B11/00G01C21/24B64G3/00
Inventor 崔维鑫韩开亮吕银环崔文楠袁志刚刘学明童广辉刘石神
Owner SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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