The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 26, 2010
Filed:
Dec. 28, 2007
Ziran Zhao, Beijing, CN;
Zhiqiang Chen, Beijing, CN;
Yingxin Wang, Beijing, CN;
Bing Feng, Beijing, CN;
LI Zhang, Beijing, CN;
Zhuoyan Liu, Beijing, CN;
Yinpeng Liang, Beijing, CN;
Ziran Zhao, Beijing, CN;
Zhiqiang Chen, Beijing, CN;
Yingxin Wang, Beijing, CN;
Bing Feng, Beijing, CN;
Li Zhang, Beijing, CN;
Zhuoyan Liu, Beijing, CN;
Yinpeng Liang, Beijing, CN;
Tsinghua University, Beijing, CN;
Nuctech Company, Beijing, CN;
Abstract
The present invention relates to a method for assessing the purity of vegetable oils by means of THz time-domain spectroscopy, comprising the steps of: measuring the THz time-domain spectra of standard vegetable oils to establish a spectral database; measuring the THz time-domain spectrum of vegetable oil to be detected; analyzing the purity of the detected vegetable oil based on the pre-built database. The present invention also relates to an apparatus for assessing purity of vegetable oil by means of THz time-domain spectroscopy, comprising: spectrum measuring device for measuring time-domain waveforms of THz pulses before and after transmitting the vegetable oil held in a container by transmission approach, or directly measuring time-domain waveforms of THz pulses before and after reflecting from the vegetable oil by reflection approach; and data processing device for extracting physical parameters of the vegetable oil in THz region according to the time-domain waveforms. Compared with the prior art, the method according to the present invention is easy, rapid and quantitative.