Skip to main content

Detection of Cotton Lint Trash Within the Ultraviolet–Visible Spectral Range

Buy Article:

$29.00 plus tax (Refund Policy)

Abstract:

Cotton lint trash is a serious problem in the textile industry. The principle upon which this research is based is that different materials have different spectral absorption, excitation, and emission characteristics. Although white-light imaging is widely used to detect colored foreign-matter contaminants, or "trash", it is almost useless for detecting white trash. The objective of the research described in this paper was to achieve the best trash detection result possible in the spectral range from 250 to 850 nm. Diffuse reflection spectroscopy indicated that the differences in gray value between lint and white trash become significant in the ultraviolet (UV) range, especially from 250 to 350 nm. Fluorescence spectroscopy gave reliable evidence that the UV-induced fluorescence intensity of white trash is much stronger than that of lint. To detect several types of trash simultaneously, the interaction of white-light imaging and UV-induced fluorescence imaging was studied. To avoid the spectral interference caused by white light in fluorescence imaging, a novel method—an alternating imaging detection method—is proposed. Experiments indicated that the advantages of both white-light imaging and UV-induced fluorescence imaging were preserved in the method. The novel method could effectively detect both colored and white trash in real time. This method can also be applied to trash detection in seed cotton, wool, tea leaf, and tobacco leaf.

Keywords: ALTERNATING IMAGING DETECTION; CONTAMINANTS; COTTON LINT; DIFFUSE REFLECTION SPECTROSCOPY; FOREIGN MATTER; IMAGE FUSION; SPECTRAL INTERFERENCE; TRASH; UV-INDUCED FLUORESCENCE SPECTROSCOPY

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/000370210792081091

Affiliations: Department of Precision Instruments and Mechanology, Tsinghua University, Beijing, China

Publication date: August 1, 2010

More about this publication?
sas/sas/2010/00000064/00000008/art00021
dcterms_title,dcterms_description,pub_keyword
6
5
20
40
5

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more