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    1.
    发明专利
    未知

    公开(公告)号：FR2305718A1

    公开(公告)日：1976-10-22

    申请号：FR7608471

    申请日：1976-03-24

    Applicant: KLOECKNER WERKE AG

    Inventor： GRISAR ULRICH ,  BERSTERMAN WILHELM

    IPC: G01J3/28 ,  G01J3/36 ,  G01J3/38 ,  G01J3/20 ,  G01N21/22 ,  G01N33/20

    Abstract: An alloy to be tested is formed of a basis metal and a plurality of alloying elements. A diffraction spectrum having lines corresponding to the basis metal and to each of the alloying elements is generated from the alloy by sparking and electrical signals each having an intensity proportional to the intensity of a respective one of the lines of the spectrum are formed. Each of these signals is integrated and the integrated signals corresponding to lines of the alloy elements are each compared with the integrated signal corresponding to the line of the basis metal and difference signals are generated. These difference signals are evaluated by being passed through a threshold circuit which sounds an alarm when they lie outside a predetermined range. The device can be calibrated by comparing each of the signals corresponding to one of the alloying elements with only a portion of the signal corresponding to the basis metal so that the arrangement can be set up to generate an output only when the alloy being sampled has a composition different from a predetermined calibrated composition.

    4.
    发明专利
    未知

    公开(公告)号：FR2305717A1

    公开(公告)日：1976-10-22

    申请号：FR7608474

    申请日：1976-03-24

    Applicant: KLOECKNER WERKE AG

    Inventor： GRISAR ULRICH ,  BERSTERMAN WILHELM

    IPC: G01J3/18 ,  G01N33/20 ,  G01J3/20 ,  G01J3/38 ,  G01N21/22

    Abstract: An arrangement of the Rowland character includes a support and a concave grating on the support for producing the spectrum characteristic of a sample being investigated. The support has a series of slits thereon which are positioned on the Rowland circle and are adjusted to the spectral lines of samples to be investigated. An element on the support is provided with a primary slit for directing the radiation derived from a sample being investigated onto the concave grating. The primary slit is positioned on the Rowland circle and the element provided with the primary slit is mounted on the support for movement along the arc of the Rowland circle. The element is mounted in such a manner as to be arrestable in a plurality of positions. The element is favorably in the form of a plate. A preferred embodiment contemplates the provision of a pair of grooves in the support, which latter may be in the form of a housing, with the grooves following the curvature of the Rowland circle and the element being guided in the grooves. The edges of the element located in the grooves may be provided with openings in which there are accommodated spherical members as well as biasing elements for urging the spherical members into contact with the grooves.

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