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Multiple wave length transmission and reflection detection method for cotton white foreign matter and device

A multi-wavelength, transflective technology, applied in measurement devices, material analysis through optical means, instruments, etc., can solve problems such as unsatisfactory detection of hair and other small foreign objects, low imaging resolution, and small ultrasonic imaging field of view. , to achieve the effects of rich features, optimized system design, and improved spray removal efficiency

Inactive Publication Date: 2008-01-16
BEIJING JIAOTONG UNIV
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Problems solved by technology

The field of view of ultrasonic imaging is small, and the imaging resolution is low, which is not ideal for the detection of small foreign objects such as hair strands

Method used

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  • Multiple wave length transmission and reflection detection method for cotton white foreign matter and device
  • Multiple wave length transmission and reflection detection method for cotton white foreign matter and device

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Embodiment Construction

[0033] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0034] As shown in Figure 1, the multi-wavelength transflective detection method and its device for white foreign matter in cotton of the present invention include a multi-wavelength transflective imaging device 9, an upper slope cotton channel 2, a belt conveyor mechanism 5, a lower slope cotton channel 15, and a nozzle line Array 14, foreign matter separation box 16, clean cotton collection box 17.

[0035] The multi-wavelength transflective imaging device, as shown in FIG. 2 , includes reflective light sources 6 of 400nm and 510nm, a multispectral CCD camera 7, a white light transmission light source 10, and a dark box structure for shielding interference light. This imaging device has two sets of illumination light sources, that is, a reflection light source 6 composed of two wavelengths of 400nm and 510nm, and a white light transmission li...

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Abstract

The invention relates to multi-wave reflection and transmission detecting technology detecting the white foreign matter in cotton and the device thereof. The invention comprises a multi-wave and reflection and transmission imaging device, a flat shape cotton channel, a leather belt transporting mechanism, a spray nozzle array and a foreign matter separator box. The loose even flat cotton thin layer is transported to the multi-wave reflection and transmission imaging device through a transparent leather belt; the multi-wave reflection and transmission imaging method adopted in the imaging device can both gain the reflected image information and the transmission image information under the light. The information is sent into the computer and then is processed, the corresponding spray nozzle movement is controlled according to the space position of the foreign matter and the foreign matter is wed out. The invention is characterized in that the foreign matter image in cotton is gained through the multi-wave reflection and transmission imaging method and the method has better detecting effect to the white or colorless foreign matter in cotton. The invention has obvious detecting effect to white silk type foreign matter, the structure is simple, the cost is inexpensive, and the invention is suitable to detect the impurity and flaw of the fiber class material and the textile category material.

Description

technical field [0001] The invention relates to a multi-wavelength transflective detection method and device for white foreign matter in cotton, the principle and structural design of the optical imaging method, and belongs to the technical field of optical detection instruments. Background technique [0002] In recent years, a large number of impurities that are difficult to identify have appeared in cotton picking, purchasing, processing and other links-white foreign matter, commonly known as "white three silk", which refers to white or colorless fibers mixed into cotton Foreign matter, such as chemical fiber silk, hair silk, hemp silk, plastic sheets, etc. These foreign objects are shredded and mixed into the cotton in the subsequent processing procedure, which seriously affects the subsequent processing quality of cotton and causes a sharp drop in corporate profits. It has become one of the focuses of the domestic and foreign textile industry. Since the external charact...

Claims

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Application Information

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IPC IPC(8): G01N21/17B07C5/342
Inventor 郏东耀
Owner BEIJING JIAOTONG UNIV
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