公开(公告)号：US08039803B2

公开(公告)日：2011-10-18

申请号：US12920161

申请日：2009-02-16

Applicant: Kejun Kang ,  Zhiqiang Chen ,  Li Zhang ,  Yingxin Wang ,  Ziran Zhao ,  Yuanjing Li ,  Yinong Liu ,  Zhifeng Huang ,  Yuxiang Xing

Inventor： Kejun Kang ,  Zhiqiang Chen ,  Li Zhang ,  Yingxin Wang ,  Ziran Zhao ,  Yuanjing Li ,  Yinong Liu ,  Zhifeng Huang ,  Yuxiang Xing

IPC: G01J5/02

CPC classification number: G01N21/3581

Abstract: A method for phase contrast imaging comprises: illuminating an object by terahertz radiation such that the terahertz radiation interacts with the object; illuminating a diffraction grating by the terahertz radiation that has interacted with the object; translating the diffraction grating along the direction of the grating wave vector, to measure, for each of different grating positions, an intensity distribution of the terahertz radiation that has interacted with the object and with the grating in a diffraction field; and retrieving a phase contrast image of the object from the intensity distributions. An apparatus for phase contrast imaging is also provided.

Abstract translation: 一种用于相位对比成像的方法包括：用太赫兹辐射照射物体，使得太赫兹辐射与物体相互作用; 用与物体相互作用的太赫兹辐射照射衍射光栅; 沿着光栅波矢的方向平移衍射光栅，以测量每个不同的光栅位置，在衍射场中与物体和光栅相互作用的太赫兹辐射的强度分布; 以及从所述强度分布中检索所述对象的相位对比图像。 还提供了一种用于相位成像的装置。

公开(公告)号：US20080165364A1

公开(公告)日：2008-07-10

申请号：US11966057

申请日：2007-12-28

Applicant: Ziran Zhao ,  Zhiqiang Chen ,  Yingxin Wang ,  Bing Feng ,  Li Zhang ,  Zhuoyan Liu ,  Yinpeng Liang

Inventor： Ziran Zhao ,  Zhiqiang Chen ,  Yingxin Wang ,  Bing Feng ,  Li Zhang ,  Zhuoyan Liu ,  Yinpeng Liang

IPC: G01B9/02 ,  G01N21/41

CPC classification number: G01N21/3586 ,  G01N21/3577 ,  G01N2201/1293

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.

Abstract translation: 本发明涉及通过THz时域光谱法评估植物油的纯度的方法，包括以下步骤：测量标准植物油的THz时域谱以建立光谱数据库; 测量要检测的植物油的THz时域谱; 基于预建的数据库分析检测出的植物油的纯度。 本发明还涉及通过太赫兹时域光谱法评价植物油的纯度的装置，其特征在于，包括：频谱测量装置，用于测量传输通过传输方式容纳在容器中的植物油之前和之后的THz脉冲的时域波形 或通过反射方法直接测量从植物油反射之前和之后的太赫兹脉冲的时域波形; 以及根据时域波形提取太赫兹区植物油物理参数的数据处理装置。 与现有技术相比，根据本发明的方法容易，快速和定量。

公开(公告)号：US07652769B2

公开(公告)日：2010-01-26

申请号：US11966057

申请日：2007-12-28

Applicant: Ziran Zhao ,  Zhiqiang Chen ,  Yingxin Wang ,  Bing Feng ,  Li Zhang ,  Zhuoyan Liu ,  Yinpeng Liang

Inventor： Ziran Zhao ,  Zhiqiang Chen ,  Yingxin Wang ,  Bing Feng ,  Li Zhang ,  Zhuoyan Liu ,  Yinpeng Liang

IPC: G01B9/02 ,  G01J3/45

CPC classification number: G01N21/3586 ,  G01N21/3577 ,  G01N2201/1293

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.

Abstract translation: 本发明涉及通过THz时域光谱法评估植物油的纯度的方法，包括以下步骤：测量标准植物油的THz时域谱以建立光谱数据库; 测量要检测的植物油的THz时域谱; 基于预建的数据库分析检测出的植物油的纯度。 本发明还涉及通过太赫兹时域光谱法评价植物油的纯度的装置，其特征在于，包括：频谱测量装置，用于测量传输通过传输方式容纳在容器中的植物油之前和之后的THz脉冲的时域波形 或通过反射方法直接测量从植物油反射之前和之后的太赫兹脉冲的时域波形; 以及根据时域波形提取太赫兹区植物油物理参数的数据处理装置。 与现有技术相比，根据本发明的方法容易，快速和定量。

公开(公告)号：US20080157750A1

公开(公告)日：2008-07-03

申请号：US11964363

申请日：2007-12-26

Applicant: Yuanjing LI ,  Bing Feng ,  Ziran Zhao ,  Yingxin Wang ,  Dongmei Yu

Inventor： Yuanjing LI ,  Bing Feng ,  Ziran Zhao ,  Yingxin Wang ,  Dongmei Yu

IPC: G01R23/16

CPC classification number: G01J3/42 ,  G01J3/4531 ,  G01N21/3586

Abstract: Disclosed are a method and an apparatus for measuring terahertz time-domain spectrum, which relate to the field of terahertz time-domain spectrum. The method comprises the steps of: generating a first pulse laser beam from a first femtosecond laser device at a preset repetition frequency to generate THz pulses; generating a second pulse laser beam from a second femtosecond laser device at the repetition frequency; measuring electric field intensities of the THz pulses at respective phase differences between the first pulse laser beam and the second pulse laser beam; and obtaining a THz time-domain spectroscopy by performing Fourier transformation of data representative of the electric field intensities. Compared with prior art, THz spectrum measured according to the method and apparatus of present invention has higher spectroscopy resolution and broader detection range, which makes the technology of present invention have stronger capability for discriminating substances.

Abstract translation: 公开了一种用于测量太赫兹时域光谱的方法和装置，其涉及太赫兹时域光谱的领域。 该方法包括以下步骤：以预设的重复频率从第一飞秒激光装置产生第一脉冲激光束以产生THz脉冲; 以重复频率从第二飞秒激光装置产生第二脉冲激光束; 在第一脉冲激光束和第二脉冲激光束之间的相位差测量THz脉冲的电场强度; 并且通过对代表电场强度的数据进行傅里叶变换来获得THz时域光谱。 与现有技术相比，根据本发明的方法和装置测量的太赫兹光谱具有更高的光谱分辨率和更广泛的检测范围，这使得本发明的技术具有更强的辨别物质的能力。

公开(公告)号：US09194796B2

公开(公告)日：2015-11-24

申请号：US14008903

申请日：2012-04-13

Applicant: Ziran Zhao ,  Yingxin Wang ,  Zhiqiang Chen ,  Wanlong Wu

Inventor： Ziran Zhao ,  Yingxin Wang ,  Zhiqiang Chen ,  Wanlong Wu

IPC: G01N21/3581 ,  G01V8/00 ,  G01J3/02 ,  G01N21/3563

CPC classification number: G01N21/3581 ,  G01J3/0237 ,  G01N21/3563 ,  G01V8/005

Abstract: A method and an apparatus for detecting hidden hazardous substance including the steps of: performing terahertz imaging for a detected object; judging whether there is a suspicious area containing the hidden hazardous substance in a terahertz image of the detected object obtained by the terahertz imaging; performing a multi-wavelength spectroscopy measurement to the suspicious area, determining whether the hazardous substance is contained in the suspicious area according to results of multi-wavelength spectroscopy measurement; and outputting the image of the detected object and hazardous substance detecting result. Also disclosed is an apparatus for implementing the method for detecting the hidden hazardous substance according to the present invention. Determination of the hidden hazardous substance can be performed from the perspectives of shape features and substance composition, thus the accuracy of detection is greatly increased.

Abstract translation: 一种用于检测隐藏的有害物质的方法和装置，包括以下步骤：对检测到的物体执行太赫兹成像; 判断在通过太赫兹成像获得的检测对象的太赫兹图像中是否存在含有隐藏的有害物质的可疑区域; 对可疑区域进行多波长光谱测量，根据多波长光谱测量结果确定有害物质是否包含在可疑区域; 并输出检测对象的图像和有害物质检测结果。 还公开了根据本发明的用于实施隐藏的有害物质检测方法的装置。 可以从形状特征和物质组成的角度来确定隐藏的有害物质，从而大大提高了检测的准确性。

公开(公告)号：US08016957B2

公开(公告)日：2011-09-13

申请号：US11347003

申请日：2006-02-03

Applicant: Xiaoqin Zeng ,  Yingxin Wang ,  Wenjiang Ding ,  Aihua A. Luo

Inventor： Xiaoqin Zeng ,  Yingxin Wang ,  Wenjiang Ding ,  Aihua A. Luo

IPC: C22C23/00

CPC classification number: C22C14/00 ,  B22D21/007 ,  B22D27/20 ,  C22C1/06 ,  C22C23/02

Abstract: The grain size of magnesium alloys is effectively refined and made smaller by the addition of a small amount of titanium. The effect of the reduction of grain size is often an improvement in the strength and processability of a cast magnesium alloy. Often less than about 0.1% by weight of titanium need be used. It may be preferred to incorporate the titanium with another alloying constituent (such as aluminum) for addition to a melt of a magnesium base alloy.

Abstract translation: 通过加入少量的钛，镁合金的晶粒尺寸被有效地精制并变得更小。 晶粒尺寸减小的效果通常是铸造镁合金的强度和加工性能的改善。 通常需要小于约0.1重量％的钛。 优选将钛与另一种合金成分（如铝）并入镁基合金熔体中。

公开(公告)号：US20140231649A1

公开(公告)日：2014-08-21

申请号：US14008903

申请日：2012-04-13

Applicant: Ziran Zhao ,  Yingxin Wang ,  Zhiqiang Chen ,  Wanlong Wu

Inventor： Ziran Zhao ,  Yingxin Wang ,  Zhiqiang Chen ,  Wanlong Wu

IPC: G01N21/35 ,  G01J3/02

CPC classification number: G01N21/3581 ,  G01J3/0237 ,  G01N21/3563 ,  G01V8/005

Abstract: A method and an apparatus for detecting hidden hazardous substance including the steps of: performing terahertz imaging for a detected object; judging whether there is a suspicious area containing the hidden hazardous substance in a terahertz image of the detected object obtained by the terahertz imaging; performing a multi-wavelength spectroscopy measurement to the suspicious area, determining whether the hazardous substance is contained in the suspicious area according to results of multi-wavelength spectroscopy measurement; and outputting the image of the detected object and hazardous substance detecting result. Also disclosed is an apparatus for implementing the method for detecting the hidden hazardous substance according to the present invention. Determination of the hidden hazardous substance can be performed from the perspectives of shape features and substance composition, thus the accuracy of detection is greatly increased.

Abstract translation: 一种用于检测隐藏的有害物质的方法和装置，包括以下步骤：对检测到的物体执行太赫兹成像; 判断在通过太赫兹成像获得的检测对象的太赫兹图像中是否存在含有隐藏的有害物质的可疑区域; 对可疑区域进行多波长光谱测量，根据多波长光谱测量结果确定有害物质是否包含在可疑区域; 并输出检测对象的图像和有害物质检测结果。 还公开了根据本发明的用于实施隐藏的有害物质检测方法的装置。 可以从形状特征和物质组成的角度来确定隐藏的有害物质，从而大大提高了检测的准确性。

公开(公告)号：US20110024624A1

公开(公告)日：2011-02-03

申请号：US12920161

申请日：2009-02-16

Applicant: Kejun Kang ,  Zhiqiang Chen ,  Li Zhang ,  Yingxin Wang ,  Ziran Zhao ,  Yuanjing Li ,  Yinong Liu ,  Zhifeng Huang ,  Yuxiang Xing

Inventor： Kejun Kang ,  Zhiqiang Chen ,  Li Zhang ,  Yingxin Wang ,  Ziran Zhao ,  Yuanjing Li ,  Yinong Liu ,  Zhifeng Huang ,  Yuxiang Xing

IPC: H01L31/09 ,  H01L31/0232

CPC classification number: G01N21/3581

Abstract: A method for phase contrast imaging comprises: illuminating an object by terahertz radiation such that the terahertz radiation interacts with the object; illuminating a diffraction grating by the terahertz radiation that has interacted with the object; translating the diffraction grating along the direction of the grating wave vector, to measure, for each of different grating positions, an intensity distribution of the terahertz radiation that has interacted with the object and with the grating in a diffraction field; and retrieving a phase contrast image of the object from the intensity distributions. An apparatus for phase contrast imaging comprises: a terahertz radiation emitter for generating terahertz radiation, which illuminates an object to interact with the object; a diffraction grating, which is illuminated by the terahertz radiation that has interacted with the object; a terahertz radiation detector for measuring, for each of different grating positions, an intensity distribution of the terahertz radiation that has interacted with the object and with the grating in a diffraction field; and a data collecting and processing system for retrieving a phase contrast image of the object from the intensity distributions.

Abstract translation: 一种用于相位对比成像的方法包括：用太赫兹辐射照射物体，使得太赫兹辐射与物体相互作用; 用与物体相互作用的太赫兹辐射照射衍射光栅; 沿着光栅波矢的方向平移衍射光栅，以测量每个不同的光栅位置，在衍射场中与物体和光栅相互作用的太赫兹辐射的强度分布; 以及从所述强度分布中检索所述对象的相位对比图像。 用于相位对比成像的装置包括：太赫兹辐射发射器，用于产生太赫兹辐射，其照亮物体与物体相互作用; 衍射光栅，其被与物体相互作用的太赫兹辐射照射; 太赫兹辐射检测器，用于针对每个不同的光栅位置，在衍射场中测量与物体和光栅相互作用的太赫兹辐射的强度分布; 以及用于从强度分布中检索对象的相位对比图像的数据收集和处理系统。

公开(公告)号：US07675037B2

公开(公告)日：2010-03-09

申请号：US11964363

申请日：2007-12-26

Applicant: Yuanjing Li ,  Bing Feng ,  Ziran Zhao ,  Yingxin Wang ,  Dongmei Yu

Inventor： Yuanjing Li ,  Bing Feng ,  Ziran Zhao ,  Yingxin Wang ,  Dongmei Yu

IPC: G01J5/02

CPC classification number: G01J3/42 ,  G01J3/4531 ,  G01N21/3586

Abstract: A method and an apparatus for measuring terahertz time-domain spectrum, which relate to the field of terahertz time-domain spectrum. The method comprises the steps of: generating a first pulse laser beam from a first femtosecond laser device at a preset repetition frequency to generate THz pulses; generating a second pulse laser beam from a second femtosecond laser device at the repetition frequency; measuring electric field intensities of the THz pulses at respective phase differences between the first pulse laser beam and the second pulse laser beam; and obtaining a THz time-domain spectroscopy by performing Fourier transformation of data representative of the electric field intensities. THz spectrum measured according to the method and apparatus improves spectroscopy resolution and provides a broader detection range.

Abstract translation: 一种用于测量太赫兹时域光谱的方法和装置，涉及太赫兹时域光谱领域。 该方法包括以下步骤：以预设的重复频率从第一飞秒激光装置产生第一脉冲激光束以产生THz脉冲; 以重复频率从第二飞秒激光装置产生第二脉冲激光束; 在第一脉冲激光束和第二脉冲激光束之间的相位差测量THz脉冲的电场强度; 并且通过对代表电场强度的数据进行傅里叶变换来获得THz时域光谱。 根据方法和装置测量的太赫兹光谱提高了光谱分辨率，并提供了更广泛的检测范围。

公开(公告)号：US20060192107A1

公开(公告)日：2006-08-31

申请号：US11242842

申请日：2005-10-05

Applicant: Donald DeVoe ,  Yingxin Wang ,  Cheng Lee ,  Yan Li

Inventor： Donald DeVoe ,  Yingxin Wang ,  Cheng Lee ,  Yan Li

IPC: B01D59/44

CPC classification number: B05B5/025 ,  G01N27/44717 ,  G01N30/7266

Abstract: Disclosed are an apparatus, system, and method for performing electrospray of biomolecules, particularly peptides, polypeptides, and proteins. The apparatus comprises at least (1) a microfluidic substrate for containing an electrospray microchannel for delivering analyte molecules to a side edge of the substrate, and (2) a porous membrane attached to the side edge for performing electrospray from the exposed membrane surface. In one preferred embodiment, the exposed membrane surface is positioned above a target surface for depositing analyte molecules onto the target surface by electrospray. In another preferred embodiment, a proteolytic enzyme is bound to the porous membrane for performing protein digestion during electrospray.

Abstract translation: 公开了用于进行生物分子，特别是肽，多肽和蛋白质的电喷雾的装置，系统和方法。 该装置至少包括（1）微流体衬底，用于容纳用于将分析物分子输送到衬底的侧边缘的电喷射微通道，和（2）附着到侧边缘的用于从暴露的膜表面进行电喷雾的多孔膜。 在一个优选实施例中，暴露的膜表面位于靶表面上方，用于通过电喷射将分析物分子沉积到靶表面上。 在另一个优选的实施方案中，蛋白水解酶与多孔膜结合，用于在电喷雾期间进行蛋白质消化。