Method and apparatus for detecting diamonds in a plurality of objects
    1.
    发明授权
    Method and apparatus for detecting diamonds in a plurality of objects 失效
    用于检测多个物体中的钻石的方法和装置

    公开(公告)号:US5505313A

    公开(公告)日:1996-04-09

    申请号:US107813

    申请日:1993-11-05

    CPC classification number: B07C5/3427 B07C5/366 G01N21/65 G01N21/87

    Abstract: In order to sort ore from associated mineral material, a method and apparatus of classifying an object is provided, the method including feeding the object along a feed path, irradiating the object with infra-red radiation of a first wavelength, the radiation of the first wavelength being focussed onto an irradiation zone intersecting the feed path, the irradiation zone having a length in the vertical plane substantially greater than its width in the vertical plane. The intensity of radiation emitted by the object at at least one second wavelength different from the first wavelength is examined, the second wavelength being characteristic of a first class of object or the ore to be sorted from the mineral, whereby the classification of the object may be derived.

    Abstract translation: PCT No.PCT / GB92 / 00295 Sec。 371日期:1993年11月5日 102(e)日期1993年11月5日PCT提交1992年2月20日PCT公布。 第WO92 / 14556号公报 1992年9月3日,为了对相关矿物材料的矿石进行分类,提供了一种对物体进行分类的方法和装置,该方法包括沿着进给路径进给物体,用第一 第一波长的辐射被聚焦到与馈送路径相交的照射区域上,照射区域在垂直平面中的长度大致大于其在垂直平面中的宽度。 检查由物体在与第一波长不同的至少一个第二波长处发射的辐射的强度,第二波长是第一类物体的特征或从矿物中分选的矿石,由此物体的分类可以 被派生。

    Classifying or sorting
    2.
    发明授权
    Classifying or sorting 失效
    分类或排序

    公开(公告)号:US5628410A

    公开(公告)日:1997-05-13

    申请号:US547896

    申请日:1995-10-24

    CPC classification number: B07C5/3427 B07C5/366 G01N21/65 G01N21/87

    Abstract: This invention relates to a method and apparatus for classifying or sorting objects by projecting and irradiating an object through an irradiation zone and then examining the radiation emitted by the object to determine its class, the irradiating zone having a length in a vertical plane greater than its width where its length to width ratio is greater than 5:1.

    Abstract translation: 本发明涉及一种用于通过照射区域投影和照射物体然后检查由物体发射的辐射以确定其类别来对物体进行分类或分类的方法和装置,照射区域的垂直平面中的长度大于其 其长宽比大于5:1的宽度。

    Detecting diamonds in a rock sample
    3.
    发明授权
    Detecting diamonds in a rock sample 失效
    检测岩石样品中的钻石

    公开(公告)号:US5603414A

    公开(公告)日:1997-02-18

    申请号:US343525

    申请日:1995-01-25

    CPC classification number: G01N33/381 G01N23/14

    Abstract: In order to provide secure and simple detection of diamonds when prospecting, a rock sample is reduced to powder particles which are automatically checked to see if they contain diamond particles (30) by processing an image of X-radiation transmitted through a layer of the particles. The image may be processed by comparing it with a further image of visible light transmitted by the layer of particles.

    Abstract translation: PCT No.PCT / GB93 / 01127 Sec。 371 1995年1月25日第 102(e)日期1995年1月25日PCT提交1993年5月28日PCT公布。 公开号WO93 / 24833 日期1993年12月9日为了在勘探时提供钻石的安全和简单的检测,岩石样品被还原成粉末颗粒,通过处理透过X射线的图像,自动检查它们是否含有金刚石颗粒(30) 一层颗粒。 可以通过将图像与由颗粒层透射的可见光的另一图像进行比较来处理图像。

    Sensing the shape of an object
    4.
    发明授权
    Sensing the shape of an object 失效
    感觉物体的形状

    公开(公告)号:US5076698A

    公开(公告)日:1991-12-31

    申请号:US432912

    申请日:1989-11-07

    CPC classification number: G01B11/2522

    Abstract: In order to determine the external profile of a diamond, particularly a large diamond which has re-entrant features, an elongate and thin beam is projected onto the diamond while the diamond is rotated about an axis normal to the beam; an imaging system is used to image from one side the line along which the beam strikes the diamond, this image being formed on a diffraction grating which is tilted in accordance with the Scheimpflug condition and in order to employ the first order beam of the diffraction grating. The image on the diffraction grating is viewed with a second imaging system. Furthermore, there may be a substantial improvement in light capture. The arrangement is applicable to systems other than those for determining profile.

    Symmetric chirp communications acquisition method and apparatus
    6.
    发明授权
    Symmetric chirp communications acquisition method and apparatus 失效
    对称啁啾通信采集方法及装置

    公开(公告)号:US06396866B1

    公开(公告)日:2002-05-28

    申请号:US09071574

    申请日:1998-05-01

    CPC classification number: H04L27/2278 H04L2027/0095

    Abstract: A method of acquiring a communications signal is provided. The method includes the steps of storing a forward chirp sync segment (106) of an auto-correlating forward chirp sync (102) and storing a reverse chirp sync segment (108) of a symmetric auto-correlating reverse chirp sync (104). A header comprising of either a forward chirp sync FCS (102) or a reverse chirp sync RCS (104), a predetermined number of data blocks comprising a data frame (308), and the symmetric auto-correlating trailer is received. The header, the data blocks, and the symmetric trailer are susceptible to frequency error. The method correlates the FCS segment (106) with the auto-correlating FCS (102) to provide a FCS correlation signal (312) and correlates the RCS segment (104) with the auto-correlating RCS (108) to provide a RCS correlation signal (314). The method determines the frequency error, symbol timing, and frame timing based upon the FCS correlation signal (312) and the RCS correlation signal (314).

    Abstract translation: 提供一种采集通信信号的方法。 该方法包括存储自相关前向线性调频脉冲同步(102)的前向啁啾同步段(106)并存储对称自相关反向啁啾同步(104)的反向啁啾同步段(108)的步骤。 包括前向啁啾同步FCS(102)或反向啁啾同步RCS(104)的标题,接收包括数据帧(308)的预定数量的数据块和对称的自动相关预告。 报头,数据块和对称报尾易受频率误差的影响。 该方法将FCS段(106)与自相关FCS(102)相关联以提供FCS相关信号(312),并将RCS段(104)与自相关RCS(108)相关联以提供RCS相关信号 (314)。 该方法基于FCS相关信号(312)和RCS相关信号(314)确定频率误差,符号定时和帧定时。

    Sensing a narrow frequency band and gemstones
    7.
    发明授权
    Sensing a narrow frequency band and gemstones 失效
    感应窄频带和宝石

    公开(公告)号:US5351117A

    公开(公告)日:1994-09-27

    申请号:US31585

    申请日:1993-03-15

    Abstract: In order to sort diamond-bearing ore particles conveyed on a wide belt, exciting radiation strikes the belt along an extended line. Diamonds are detected by passing the emitted radiation through a narrow band pass filter and sensing the Raman radiation with a photo-multiplier tube. Only axial-parallel rays passing through the filter reach the photo-multiplier tube. An array of side-by-side converging lenses can be used, the lenses being of rectangular shape as seen looking along the optical axis with their long axes at right angles to the line of radiation. The ore particles are in the plane of the foci of the lenses, so that radiation emitted by each particle is passed in parallel rays through the filter. In order to stop rays having an angle of incidence greater than the maximum permitted, to avoid identifying non-diamond material as diamond, a further converging lens is used to focus the rays at the plane of a telecentric stop. The stop stops rays having too great an angle of incidence. The position of the diamond can be detected for instance by a CCD array or by a time domain technique. The apparatus can be monitored by giving a signal when the radiation from tracer stones and holes on either side of the belt, differs from predetermined values.

    Abstract translation: 为了分类在宽带上输送的含有钻石的矿石颗粒,激发的辐射沿着延伸的线路撞击带。 通过将发射的辐射通过窄带通滤波器并用光电倍增管感测拉曼辐射来检测钻石。 只有穿过过滤器的轴向平行射线才能到达光电倍增管。 可以使用并排会聚透镜的阵列,透镜是沿着光轴看到的长方形的,其长轴与辐射线成直角。 矿石颗粒在透镜的焦点的平面中,使得每个颗粒发射的辐射通过平行的光线通过过滤器。 为了阻止具有大于最大允许值的入射角的光线,为了避免将非金刚石材料识别为金刚石,使用另外的会聚透镜将光线聚焦在远心停止的平面上。 停止停止具有太大入射角的射线。 可以例如通过CCD阵列或时域技术来检测钻石的位置。 当来自示踪器石头的辐射和带的两侧的孔的不同于预定值时,可以通过给出信号来监测该装置。

    Method of classifying objects according to shape
    9.
    发明授权
    Method of classifying objects according to shape 失效
    根据形状对物体进行分类的方法

    公开(公告)号:US5010247A

    公开(公告)日:1991-04-23

    申请号:US418265

    申请日:1989-10-06

    CPC classification number: B07C5/10

    Abstract: Objects are dropped in succession through a viewing zone, where they are viewed in bright field illumination by three viewers along mutually orthogonal axes, using radiation of different wave-lengths (or viewing in rapid succession). The viewers sense the presented area. The presented areas are compared in a microprocessor in order to obtain a rough determination of the shape of the object. The presented areas can, for example, be summated to obtain a rough determination of the size of the object.

    Abstract translation: 物体通过观察区域相继被放下,在三维观察者的明亮照明中,通过使用不同波长的辐射(或快速连续观察),沿着相互正交的轴观察它们。 观众感觉呈现的区域。 所呈现的区域在微处理器中进行比较,以便获得对象形状的粗略确定。 所呈现的区域可以例如被总结以获得对象大小的粗略确定。

    Method and apparatus for examining an object
    10.
    发明授权
    Method and apparatus for examining an object 失效
    用于检查物体的方法和装置

    公开(公告)号:US5536943A

    公开(公告)日:1996-07-16

    申请号:US341532

    申请日:1995-02-13

    CPC classification number: G01N21/87 G01N21/255 G01N21/33 G01N2021/3133

    Abstract: In order to examine an object with radiation and measure the intensity of radiation used to illuminate the object, radiation is directed onto a wavelength selective mirror (31). In a first position, the mirror (31) reflects the illuminating radiation to a beam splitter (30) which passes the radiation to a detector (34). In a second position the mirror (31) directs the radiation to an object (33), radiation of the selected wavelength emanating from the object being reflected by the mirror via beam splitter (30) to the detector (34). The mirror (31) is rotated between the first and second position. In order to classify a diamond as natural or synthetic, a first signal is derived dependent upon the intensity of ultra-violet radiation transmitted by the diamond at 254 nm, and a second signal is derived dependent upon the intensity of radiation transmitted by the diamond at 365 nm and the diamond is classified as being definitely natural if the first signal is substantially greater than the second signal.

    Abstract translation: PCT No.PCT / GB93 / 01024 Sec。 371日期1995年2月13日 102(e)日期1995年2月13日PCT提交1993年5月19日PCT公布。 出版物WO93 / 23742 日期为1993年11月25日。为了用辐射检查物体并测量用于照射物体的辐射强度,辐射被引导到波长选择镜(31)上。 在第一位置,反射镜(31)将照射辐射反射到将辐射传递到检测器(34)的分束器(30)。 在第二位置,反射镜(31)将辐射引导到物体(33),从物体发出的选定波长的辐射被反射镜经由分束器(30)反射到检测器(34)。 反射镜(31)在第一和第二位置之间旋转。 为了将钻石分类为天然或合成的,第一信号取决于金刚石在254nm处发射的紫外线辐射的强度,第二信号取决于钻石发射的辐射强度, 365nm,并且如果第一信号基本上大于第二信号,则将金刚石分类为绝对自然。

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