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Wide-range illumination light source system based on multiple light sources and method for realizing wide illumination

A light source system and multi-light source technology, applied in the field of realization of wide illumination, high stability and uniform light source, can solve the problems of low test efficiency and high cost, and achieve the effects of reduced test efficiency, improved efficiency and high stability

Inactive Publication Date: 2019-07-19
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, in the process of star sensor testing, the method to solve the wide-range illuminance test is mostly to use multiple star simulators to test in sections, which makes the test efficiency low and the cost high

Method used

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  • Wide-range illumination light source system based on multiple light sources and method for realizing wide illumination
  • Wide-range illumination light source system based on multiple light sources and method for realizing wide illumination

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Embodiment Construction

[0035] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0036] like figure 1 As shown, the wide-range illuminance light source system based on multiple light sources in this embodiment mainly includes an integrating sphere 1 , an amplifier circuit 3 , a light source 4 , a photosensitive sensor 5 , a switch drive circuit 6 , a main control circuit 7 , and a continuous drive circuit 8 . Wherein light source 4 is a plurality of, photosensitive sensor 5 and a plurality of light sources 4 are all positioned at integrating sphere inside, the input end of amplifying circuit 3 is connected with the output end of photosensor 5, the output end of amplifying circuit 3 is connected with the input of main control circuit 7 The output terminals of the main control circuit 7 are respectively connected to the input terminals of the switch drive circuit 6 and the continuous drive circuit 8, and the output terminal...

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Abstract

The invention relates to a wide-range illumination light source system based on multiple light sources and a method for realizing wide illumination. The system comprises a photosensitive sensor, an amplifying circuit, a light source driving circuit, a master control circuit and a plurality of independent light sources; the master control circuit firstly calculates control parameters of the light source driving circuit and a feedback amplification factor of the amplifying circuit according to illumination parameters in a turn-on command; secondly, controls the corresponding light source drivingcircuit according to a calculation result, so that a light source is illuminated; and meanwhile, sets the feedback amplification factor of the amplifying circuit; and finally, the light source illumination of the photosensitive sensor is collected through the amplifying circuit, and the collected light source illumination is compared with the illumination parameters in the turn-on command, if thecollected light source illumination is lower than the illumination parameters in the turn-on command, the light source driving circuit is controlled to increase an illumination value of the light source; otherwise, the illumination value of the light source is reduced. The wide-range illumination test efficiency in the testing process of a star sensor is improved, the cost is reduced, and the multi-star simulation and the like of a stellar simulator are realized.

Description

technical field [0001] The invention belongs to the technical field of high stable and uniform light source control, and in particular relates to a method for realizing a high stable and uniform light source with wide illuminance. Background technique [0002] Wide-illuminance high-stable uniform light source is generally used as a part of the star simulator to provide variable and stable uniform illumination, and finally achieve the purpose of simulating multiple magnitudes. The star simulator is used to test the function and performance of the star sensor in the ground laboratory. At present, the detection capability of the star sensor can reach +7Mv, and the brightest star in the sky, Sirius, is -1.45Mv. Therefore, in order to meet the requirements of the ground experiment, the magnitude simulation range of the star simulator is generally +7Mv~-1Mv. The magnitude range is converted into an illumination range of 4.2*10 -9 lx~6.6*10 -6 lx, the variation range reaches 158...

Claims

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Application Information

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IPC IPC(8): G01J1/08G01J1/44G01C25/00
CPCG01C25/00G01J1/08G01J1/44
Inventor 卢振华吴璀罡贾乃勋
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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