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High precision star simulator

A star simulator and high-precision technology, applied in the field of star simulators, can solve the problems of low precision and high cost, and achieve the effects of high simulation precision, improved performance and reduced coating cost

Inactive Publication Date: 2008-04-23
XIAN RUIXIN MICROELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a high-quality, high-fidelity, low-cost star simulator, which solves the shortcomings of low precision and high cost of existing star simulators

Method used

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Embodiment Construction

[0026] A specific embodiment of the present invention see figure 2 , including the light source and the infrared reflector, frosted glass, condenser A, cemented prism, attenuation sheet group, filter, condenser B, star point plate and collimator arranged on the light path in sequence; the light source adopts a combined halogen tungsten bulb, its The parameters are: voltage 12V, power 35W, luminous intensity 5000cd, average lifespan 1000h; the combined tungsten halogen bulb emits a lot of infrared rays, in order to reduce the temperature near the star point, an infrared reflector is used to reflect the infrared rays emitted by the bulb back and dissipate heat; Because most of the light energy gathered by the bulb on the frosted glass is within 8mm in diameter, the light concentrating system concentrates the light with the same angle within this range on a point on the star point board, that is, every point of the light spot on the star point board is ground glass The result of...

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Abstract

The invention comprises a light source and an infrared reflector, a frosted glass, condenser A, a gluing prism, an attenuator group, a filter, condenser B, a star board and a collimator tube. For stabilizing the light source, the invention also comprises a light source brightness control circuit and a photoelectric diode located behind the condenser A and on the transmission optical path of the gluing prism.

Description

technical field [0001] The invention relates to a star simulator. Background technique [0002] With the development of my country's space technology, satellites, manned spacecraft and other spacecraft need longer life, higher control accuracy and reliability. In the spacecraft attitude control system, the star sensor (hereinafter referred to as the star sensor) is the attitude sensor with the highest measurement accuracy. It has no mechanical moving parts itself, which is conducive to long life and miniaturization, so it is the most promising in the spacecraft. and one of the most accurate attitude sensors. The reference object of the star sensor to determine the attitude is the star, and the star simulator (hereinafter referred to as the star simulator) is mainly used for ground detection. The function of the star simulator is mainly to simulate the characteristics of infinite stars such as spectrum, illuminance, parallelism and color temperature. Therefore, the quality...

Claims

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Application Information

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IPC IPC(8): G02F1/01H05B37/02G02B19/00G02B5/20G09B27/04
Inventor 何俊华谢廷毅董晓娜闫亚东白秋菊仓玉萍郑承栋朱彩霞
Owner XIAN RUIXIN MICROELECTRONICS CO LTD
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