Infrared chromatography method for fixed fiber image transmission in free space

A free space, optical fiber image transmission technology, applied in the field of image transmission infrared tomography, can solve the problems of error, inability to guarantee real-time data acquisition, time-consuming and other problems, and achieve the effect of improving accuracy

Inactive Publication Date: 2010-01-13
NANCHANG HANGKONG UNIVERSITY
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Problems solved by technology

The scanning-based method takes time to scan and cannot guarantee the real-time data acquisition; the area-array sensor-based method can ensure the real-time data acquisition, but the optical path generally uses lens imaging, which cannot meet the requirements of parallel beam tomography , so there is a large error in the tomographic inversion reconstruction calculation

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  • Infrared chromatography method for fixed fiber image transmission in free space

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Embodiment Construction

[0009] Such as figure 1 As shown, the present invention is realized in this way. It is characterized in that the target to be measured 1 has infrared radiation in all directions of the outer space, and the light-transmitting optical fibers 2 are arranged in sequence at each key fixed point in the space. The light-transmitting optical fibers are grouped according to position and direction, and each group The optical fiber bundle 3 is formed in order, and the optical fiber bundle 3 is directly connected to the infrared focal plane array sensor 4, and each fiber unit of the optical fiber bundle and the infrared focal plane array sensor unit are arranged point-to-point, and the infrared radiation and the electrical signal are converted, and the subsequent processing circuit And the multi-channel data acquisition card 5 is sent to the main computer 6 to realize the emission spectrum tomography data acquisition of multi-directional and multi-parallel ray beams in free space. Each ra...

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Abstract

The invention relates to an infrared chromatography method for fixed optical fiber image transmission in free space, which is characterized in that infrared radiation exists in all directions of the external space of an object to be tested, fixed points in space are provided with optical fibers for transmitting light, and the optical fibers for transmitting light in multiple points are grouped, each group is formed into optical fiber beams in sequence so as to transmit the data of an objective multi-ray emission spectrum and complete the testing of objective three-dimensional physical parameters through a chromatographic inversion reconstruction algorithm of parallel beams and a mathematic-physical equation of radiation. The invention has the advantages that the object to be tested can enter the space with the optical fibers along straight radiating light rays to satisfy the imaging requirements of the chromatography of the parallel beams, and ideal data are provided for infrared emission spectrum chromatography so as to increase the accuracy of chromatography reconstruction.

Description

technical field [0001] The invention relates to image transmission infrared tomography, in particular to free space fixed-point optical fiber image transmission infrared tomography. Background technique [0002] Optical tomography is a non-destructive testing technology for testing three-dimensional flow fields, including laser holographic optical tomography, Moiré grating optical tomography, beam deflection optical tomography, emission spectroscopy optical tomography, etc. Emission spectrum optical tomography has a relatively simple optical path and is not easily affected by the external environment. There are two data acquisition methods: one is based on scanning, and the other is based on area array sensors. The scanning-based method takes time to scan and cannot guarantee the real-time data acquisition; the area-array sensor-based method can ensure the real-time data acquisition, but the optical path generally uses lens imaging, which cannot meet the requirements of para...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J5/00G01J1/42
Inventor 万雄易江林万生鹏
Owner NANCHANG HANGKONG UNIVERSITY
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