CN101625266A - Infrared chromatography method for fixed fiber image transmission in free space - Google Patents
Infrared chromatography method for fixed fiber image transmission in free space Download PDFInfo
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- CN101625266A CN101625266A CN200910115956A CN200910115956A CN101625266A CN 101625266 A CN101625266 A CN 101625266A CN 200910115956 A CN200910115956 A CN 200910115956A CN 200910115956 A CN200910115956 A CN 200910115956A CN 101625266 A CN101625266 A CN 101625266A
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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
The present invention relates to a kind of biography as infrared chromatography, relate in particular to a kind of infrared chromatography method for fixed fiber image transmission in free space.
Background technology
The optical chromatography technology is a kind of Dynamic Non-Destruction Measurement of testing three-dimensional flow field, comprises laser hologram optical chromatography, moire grating optical chromatography, light beam deviation optical chromatography, emission spectrum optics chromatography etc.Emission spectrum optics chromatographic technique light path is simpler, is not subject to the influence of external environment, and its data obtain manner has two kinds: a kind of mode that is based on scanning, a kind of mode that is based on area array sensor.Mode based on scanning needs spended time to scan, and can't guarantee the real-time that data are obtained; Mode based on area array sensor can guarantee the real-time that data are obtained, but generally is to utilize lens imaging in its light path, can't satisfy the requirement of collimated beam chromatography, therefore rebuilds at tomographic inversion to have bigger error when calculating.The present invention is directed to problem based on the emission spectral chromatography data obtain manner existence of area array sensor, propose space fixed point fibre bundle and pass picture and the direct interconnected scheme of infrared focal plane array sensor, to satisfy the requirement of collimated beam chromatography, eliminate the image error of classic method, thereby when tomographic inversion is rebuild, can improve the precision of reconstruction greatly.
Summary of the invention
The object of the present invention is to provide a kind of infrared chromatography method for fixed fiber image transmission in free space, this technology adopts space fixed point fibre bundle to pass the scheme that looks like with infrared focal plane array sensor direct connection, satisfy the requirement of collimated beam chromatography, eliminate classic method non-parallel beam image error, thereby improve the precision that tomographic inversion is rebuild computing greatly, solve the measuring accuracy problem of infra-red emission chromatography.
The present invention is achieved like this, it is characterized in that all there is infrared radiation in target to be measured to external space all directions, each fixed point is settled successively and is passed light optical fiber in the space, multiple spot passes light optical fiber and divides into groups, form fibre bundle in order for every group, carry out the transmission of target multiray emission spectra data, infrared focal plane array sensor unit and the point-to-point conversion of carrying out infrared radiation and electric signal of fibre bundle fiber unit with the fibre bundle direct connection, send into principal computer by subsequent process circuit and multi-channel data acquisition card, realize the emission spectral chromatography data acquisition of the multi-direction many parallel beams of free space, each ray sensing data is reset by grouping and volume coordinate, finishes the test of the infrared three-dimensional physical parameter of target through collimated beam tomographic inversion reconstruction algorithm and radiation matheematical equation.
Each fiber unit of fibre bundle of the present invention and infrared point-to-point connection of each unit of battle array module realize that ray is corresponding one by one with bin..
Advantage of the present invention is: guarantees that target to be measured enters optical fiber along the radius of straight line, promptly satisfies the imaging requirements of collimated beam chromatography, and for the infra-red emission chromatography provides ideal data, thus the precision of raising tomographic reconstruction.
Description of drawings
Fig. 1 is a schematic diagram of the present invention.
Target to be measured 2, optical fiber 3, fibre bundle 4, infrared battle array module 5, All-in-One capture card 6, computing machine in the drawings, 1,
Embodiment
As shown in Figure 1, the present invention realizes like this, it is characterized in that all there is infrared radiation in 1 pair of external space all directions of target to be measured, each crucial fixed point is settled successively and is passed light optical fiber 2 in the space, passing light optical fiber opsition dependent and direction divides into groups, form fibre bundle 3 in order for every group, fibre bundle 3 and infrared focal plane array sensor 4 direct connections, and each fiber unit of fibre bundle and infrared focal plane array sensor unit are realized point-to-point arrangement, carry out the conversion of infrared radiation and electric signal, send into principal computer 6 by subsequent process circuit and multi-channel data acquisition card 5, realize the emission spectral chromatography data acquisition of the multi-direction many parallel beams of free space.Each ray sensing data is reset by grouping and volume coordinate, finishes the test of the infrared three-dimensional physical parameter of target through collimated beam tomographic inversion reconstruction algorithm and radiation matheematical equation.
Claims (2)
1, a kind of infrared chromatography method for fixed fiber image transmission in free space, it is characterized in that all there is infrared radiation in target to be measured to external space all directions, each fixed point is settled successively and is passed light optical fiber in the space, multiple spot passes light optical fiber and divides into groups, form fibre bundle in order for every group, carry out the transmission of target multiray emission spectra data, infrared focal plane array sensor unit and the point-to-point conversion of carrying out infrared radiation and electric signal of fibre bundle fiber unit with the fibre bundle direct connection, send into principal computer by subsequent process circuit and multi-channel data acquisition card, realize the emission spectral chromatography data acquisition of the multi-direction many parallel beams of free space, each ray sensing data is reset by grouping and volume coordinate, finishes the test of the infrared three-dimensional physical parameter of target through collimated beam tomographic inversion reconstruction algorithm and radiation matheematical equation.
2, infrared chromatography method for fixed fiber image transmission in free space according to claim 1 is characterized in that each fiber unit of described fibre bundle and infrared point-to-point connection of each unit of battle array module, realizes that ray is corresponding one by one with bin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910115956A CN101625266A (en) | 2009-08-13 | 2009-08-13 | Infrared chromatography method for fixed fiber image transmission in free space |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910115956A CN101625266A (en) | 2009-08-13 | 2009-08-13 | Infrared chromatography method for fixed fiber image transmission in free space |
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| CN101625266A true CN101625266A (en) | 2010-01-13 |
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| CN200910115956A Pending CN101625266A (en) | 2009-08-13 | 2009-08-13 | Infrared chromatography method for fixed fiber image transmission in free space |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102221407A (en) * | 2011-05-13 | 2011-10-19 | 南昌航空大学 | Infrared stereoscopic method based on multi-ball ommateum tomography |
| CN102353453A (en) * | 2011-08-27 | 2012-02-15 | 南昌航空大学 | Method for reconstructing flow field of optical fiber beams |
| CN102589706A (en) * | 2012-02-14 | 2012-07-18 | 南昌航空大学 | Calibration method of optical fiber sensing unit in emission spectrum chromatography of optical fiber bundle |
-
2009
- 2009-08-13 CN CN200910115956A patent/CN101625266A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102221407A (en) * | 2011-05-13 | 2011-10-19 | 南昌航空大学 | Infrared stereoscopic method based on multi-ball ommateum tomography |
| CN102221407B (en) * | 2011-05-13 | 2013-05-01 | 南昌航空大学 | Infrared stereoscopic method based on multi-ball ommateum tomography |
| CN102353453A (en) * | 2011-08-27 | 2012-02-15 | 南昌航空大学 | Method for reconstructing flow field of optical fiber beams |
| CN102353453B (en) * | 2011-08-27 | 2013-07-10 | 南昌航空大学 | Method for reconstructing flow field of optical fiber beams |
| CN102589706A (en) * | 2012-02-14 | 2012-07-18 | 南昌航空大学 | Calibration method of optical fiber sensing unit in emission spectrum chromatography of optical fiber bundle |
| CN102589706B (en) * | 2012-02-14 | 2014-06-11 | 南昌航空大学 | Calibration method of optical fiber sensing unit in emission spectrum chromatography of optical fiber bundle |
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Open date: 20100113 |